US3967759A — Syringe assembly with contained pop-out elastic p…

Claim 1

Independent Claim 339 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube formed of a length of substantially constant diameter thin-walled glass tubing of substantially constant wall thickness along its length and having a wall thickness substantially smaller than the outer and inner wall diameters of said glass tubing, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being frictionally secured in annularly extending stretch-fit along their sheath sections over and along respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing, said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow by-pass cavity of larger internal diameter than the internal diameter of said cylindrical glass tube, and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube, said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow by-pass cavity at all corresponding annular and longitudinal points along the length and annular periphery of said plug and said by-pass cavity to enable free plug movement within said by-pass cavity and fluid by-pass flow around the annular periphery of said pop-out valve plug when such plug is longitudinally popped out into said by-pass cavity by forward motion of said plunger.

Claim 2

Dependent Claim 339 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube formed of a length of substantially constant diameter thin-walled glass tubing of substantially constant wall thickness along its length and having a wall thickness substantially smaller than the outer and inner wall diameters of said glass tubing, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being frictionally secured in annularly extending stretch-fit along their sheath sections over and along respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing, said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow by-pass cavity of larger internal diameter than the internal diameter of said cylindrical glass tube, and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube, said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow by-pass cavity at all corresponding annular and longitudinal points along the length and annular periphery of said plug and said by-pass cavity to enable free plug movement within said by-pass cavity and fluid by-pass flow around the annular periphery of said pop-out valve plug when such plug is longitudinally popped out into said by-pass cavity by forward motion of said plunger.

Claim 3

Dependent Claim 309 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing, said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube, and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube, said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid, said valve seal elastic plug having a cruciform forward and rear face forming fluid flow channels on each of said forward and rear faces.

Claim 4

Dependent Claim 309 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing, said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube, and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube, said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid, said valve seal elastic plug having a cruciform forward and rear face forming fluid flow channels on each of said forward and rear faces.

Claim 5

Dependent Claim 209 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube having fire-polished slightly enlarged opposite ends, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, both of said sleeve sheaths having a laterally outwardly extending annular enlargement section at and in substantial lateral encompassing relation with the respective annular fire-polished end bead on said glass tube, said finger-grip sheath annular enlargement being a fillet connecting with an annular finger-grip section, said annular enlargement on said nose-forming sleeve forming a raised ring disposed in spaced relation from the opposite longitudinal ends of its respective said sheath section.

Claim 6

Dependent Claim 209 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube having fire-polished slightly enlarged opposite ends, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, both of said sleeve sheaths having a laterally outwardly extending annular enlargement section at and in substantial lateral encompassing relation with the respective annular fire-polished end bead on said glass tube, said finger-grip sheath annular enlargement being a fillet connecting with an annular finger-grip section, said annular enlargement on said nose-forming sleeve forming a raised ring disposed in spaced relation from the opposite longitudinal ends of its respective said sheath section.

Claim 7

Dependent Claim 321 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube having fire-polished slightly enlarged opposite ends, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing, said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube, and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube, said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid, both of said sleeve sheaths having a laterally outwardly extending annular enlargement section at and in substantial lateral encompassing relation with the respective annular fire-polished end bead on said glass tube.

Claim 8

Dependent Claim 321 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube having fire-polished slightly enlarged opposite ends, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing, said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube, and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube, said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid, both of said sleeve sheaths having a laterally outwardly extending annular enlargement section at and in substantial lateral encompassing relation with the respective annular fire-polished end bead on said glass tube.

Claim 9

Dependent Claim 20 words

An arrangement according to claim 4, said finger-grip sheath annular enlargement being a fillet connecting with an annular finger-grip section.

Claim 10

Dependent Claim 332 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube having fire-polished beaded opposite ends, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite fire-polished beaded ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing, said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube, and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube, said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid, and an annular enlargement on said nose-forming sleeve forming a raised ring disposed in spaced relation from the opposite longitudinal ends of its respective said sheath section and in substantial lateral encompassing relation about the respective said fire-polished end bead.

Claim 11

Dependent Claim 332 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube having fire-polished beaded opposite ends, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite fire-polished beaded ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing, said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube, and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube, said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid, and an annular enlargement on said nose-forming sleeve forming a raised ring disposed in spaced relation from the opposite longitudinal ends of its respective said sheath section and in substantial lateral encompassing relation about the respective said fire-polished end bead.

Claim 12

Dependent Claim 295 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing, said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube, and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube, said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid, said pop-out valve plug having a raised cruciform forward surface.

Claim 13

Dependent Claim 295 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing, said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube, and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube, said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid, said pop-out valve plug having a raised cruciform forward surface.

Claim 14

Dependent Claim 17 words

An arrangement according to claim 7, said pop-out valve plug having raised cruciform forward and rearward surfaces.

Claim 15

Dependent Claim 24 words

An arrangement according to claim 8, said pop-out valve plug having a plurality of annular sealing rings and grooves formed on its annular surface.

Claim 16

Dependent Claim 69 words

An arrangement according to claim 9, a sloped annular cam surface formed on one of the longitudinally inner end of said sheath section of said finger-grip sleeve and the respective longitudinally outer said end of said glass tube, and a sloped annular cam surface formed on one of the longitudinally inner end of said sheath section of said nose-forming sleeve and the respective said end of said glass tube.

Claim 17

Dependent Claim 25 words

An arrangement according to claim 10, at least one of said sloped annular cam surfaces being formed on said one end of said glass tube.

Claim 18

Dependent Claim 19 words

An arrangement according to claim 11, at least one of said sloped annular cam surfaces being an annular bevel.

Claim 19

Dependent Claim 21 words

An arrangement according to claim 11, at least one of said sloped annular cam surfaces being smoothly arcuate in longitudinal section.

Claim 20

Dependent Claim 35 words

An arrangement according to claim 13, at least one of said sloped annular cam surfaces being formed by and as a part of an annular fire-polished rim formed on one end of said glass tube.

Claim 21

Dependent Claim 30 words

An arrangement according to claim 14, said annular fire-polished rim comprising a fire-polished raised annular bead, and said fire-polished bead being formed at both longitudinal ends of said glass tube.

Claim 22

Dependent Claim 47 words

An arrangement according to claim 10, said sloped annular cam surfaces being formed on the respective longitudinally inner end each of said sleeve sheaths and facing away from the respective overlain longitudinal ends of said glass tube in the mutually assembled position of said tube and sleeves.

Claim 23

Dependent Claim 31 words

An arrangement according to claim 16, said sloped annular cam surface being formed on both longitudinal ends of said tube and on said longitudinally inner ends of both of said sleeves.

Claim 24

Dependent Claim 42 words

An arrangement according to claim 17, at least one end of said glass tube having an annular fire-polished rim smoothly arcuate in longitudinal section, formed thereon and forming said annular cam surface, said annular fire-polished rim comprising a fire-polished raised annular bead.

Claim 25

Dependent Claim 33 words

An arrangement according to claim 18, said finger-grip sleeve having at its axially outer end an internal shoulder stop adjacent and extending into the longitudinally extended path of said glass tube one end.

Claim 26

Dependent Claim 20 words

An arrangement according to claim 19, said shoulder stop extending radially inwardly beyond the inner diameter of said glass tube.

Claim 27

Dependent Claim 22 words

An arrangement according to claim 19, said shoulder stop extending radially inwardly no further than the effective inner diameter of said tube.

Claim 28

Dependent Claim 53 words

An arrangement according to claim 21, said laterally extending finger-grip protrusion having a smoothly arcuate fillet forming a forward connecting zone with the tube-engaging sheath section of said finger-grip sleeve at the outer end of said finger-grip sleeve lying over and in lateral alignment with said fire-polished beaded one end of said tube.

Claim 29

Dependent Claim 75 words

An arrangement according to claim 22, said laterally extending finger-grip protrusion comprising a laterally extending flange, said laterally extending flange being annular in extent and disposed axially beyond the respective end of said tube, and a smoothly enlarged annular fillet formed at the annular juncture zone between the longitudinally tubular portion of said finger-grip sleeve and said annular flange, said enlarged annular fillet laterally overlying and encompassing the respective annular beaded end of said tube.

Claim 30

Dependent Claim 219 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube having fire-polished beaded opposite ends, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said laterally extending finger-grip protrusion having an enlarged annular fillet juncture with the longitudinally extending tube-engaging portion of said finger-grip sleeve and lying over and in lateral alignment with said fire-polished beaded one end of said tube, said laterally extending finger-grip protrusion comprising a laterally extending flange, said laterally extending flange being annular in extent and having a main forward surface disposed longitudinally facing an imaginary plane extending across the end face of the respective annular fire-polished beaded end of said tube.

Claim 31

Dependent Claim 219 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube having fire-polished beaded opposite ends, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said laterally extending finger-grip protrusion having an enlarged annular fillet juncture with the longitudinally extending tube-engaging portion of said finger-grip sleeve and lying over and in lateral alignment with said fire-polished beaded one end of said tube, said laterally extending finger-grip protrusion comprising a laterally extending flange, said laterally extending flange being annular in extent and having a main forward surface disposed longitudinally facing an imaginary plane extending across the end face of the respective annular fire-polished beaded end of said tube.

Claim 32

Dependent Claim 168 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube having fire-polished beaded opposite ends, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, both of said sleeve sheaths having a laterally outwardly extending annular enlargement section at and in substantial lateral encompassing relation with the respective annular fire-polished end bead on said glass tube.

Claim 33

Dependent Claim 168 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube having fire-polished beaded opposite ends, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, both of said sleeve sheaths having a laterally outwardly extending annular enlargement section at and in substantial lateral encompassing relation with the respective annular fire-polished end bead on said glass tube.

Claim 34

Dependent Claim 163 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said sleeves being fitted onto said glass tube while said sleeves are at an elevated stress-relieving temperature substantially higher than the temperature of said glass tube and any material contained therein.

Claim 35

Dependent Claim 163 words

A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising a substantially cylindrical glass tube, a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon, and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof, said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube, a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon, a valve seal disposed at the opposite nose end of said glass tube, and a dispensable liquid contained within said tube between said piston and said valve seal, said sleeves being fitted onto said glass tube while said sleeves are at an elevated stress-relieving temperature substantially higher than the temperature of said glass tube and any material contained therein.

Claim 36

Dependent Claim 217 words

A dispenser arrangement comprising a barrel section having a straight cylindrical bore with a liquid containment and plunger-guiding midsection and an open forward discharge end section which is contiguous to and forms an extension of said midsection, said bore being of substantially constant diameter along its effective liquid-containment and plunger-guiding midsection and its contiguous forward discharge end section, a slidable pop-out valve plug having a section of soft elastic material disposed in radially elastically compressed sealing condition in and across said forward end of said tube bore, and a nose section disposed at and connecting with said forward discharge end and having a forward end wall with a reduced diameter dispensing orifice formed therein, said nose section forming a fluid flow by-pass cavity between the respective forward end of said tube barrel section and said reduced diameter dispensing portion of said nose section, said by-pass cavity being of greater effective size than the relaxed size of said pop-out valve plug at all corresponding annular and longitudinal points along the length and annular periphery of said plug and said cavity to enable free plug movement within said cavity and fluid by-pass flow around the annular periphery of said pop-out valve plug when such plug is longitudinally popped out into said by-pass cavity by forward motion of said plunger.

Claim 37

Dependent Claim 217 words

A dispenser arrangement comprising a barrel section having a straight cylindrical bore with a liquid containment and plunger-guiding midsection and an open forward discharge end section which is contiguous to and forms an extension of said midsection, said bore being of substantially constant diameter along its effective liquid-containment and plunger-guiding midsection and its contiguous forward discharge end section, a slidable pop-out valve plug having a section of soft elastic material disposed in radially elastically compressed sealing condition in and across said forward end of said tube bore, and a nose section disposed at and connecting with said forward discharge end and having a forward end wall with a reduced diameter dispensing orifice formed therein, said nose section forming a fluid flow by-pass cavity between the respective forward end of said tube barrel section and said reduced diameter dispensing portion of said nose section, said by-pass cavity being of greater effective size than the relaxed size of said pop-out valve plug at all corresponding annular and longitudinal points along the length and annular periphery of said plug and said cavity to enable free plug movement within said cavity and fluid by-pass flow around the annular periphery of said pop-out valve plug when such plug is longitudinally popped out into said by-pass cavity by forward motion of said plunger.

Claim 38

Dependent Claim 48 words

A dispenser according to claim 27, said barrel section being a cylindrical tube of substantially constant internal diameter along its effective bore length and said nose section being a separate element having an internal diameter larger than said diameter of said cylindrical tube and forming said by-pass cavity.

Claim 39

Dependent Claim 27 words

A dispenser according to claim 28, and a longitudinally manually movable plunger seal slidably disposed in said substantially constant diameter bore rearwardly of said pop-out valve plug.

Claim 40

Dependent Claim 71 words

A dispenser according to claim 29, said cylindrical tube barrel section comprising a substantially cylindrical glass tube formed of a length of substantially constant diameter thin-walled glass tubing of substantially constant wall thickness along its length and having a wall thickness substantially smaller than the outer and inner wall diameters of said glass tubing, said nose section comprising a plastic sleeve sheath secured about the forward end of said glass tubing.

Claim 41

Dependent Claim 47 words

A dispenser according to claim 30, said plastic sleeve sheath engaging said forward end of said glass tubing in a stretch fit and having a substantially constant circumferential interior extending beyond the end of said glass tubing and forming the circumferential bounding wall of said by-pass cavity.

Claim 42

Dependent Claim 22 words

A dispenser according to claim 30, said plastic sleeve sheath being cam stretch fit over said forward end of said glass tubing.

Claim 43

Dependent Claim 33 words

A dispenser according to claim 32, and a sloped annular cam surface formed on one of the longitudinally inner end of said nose-forming sheath and the respective forward end of said glass tubing.

Claim 44

Dependent Claim 21 words

A dispenser according to claim 33, said sloped annular cam surface being formed on said forward end of said glass tubing.

Claim 45

Dependent Claim 15 words

A dispenser according to claim 33, said sloped annular cam surface being an annular bevel.

Claim 46

Dependent Claim 17 words

A dispenser according to claim 33, said sloped annular cam surface being smoothly arcuate in longitudinal section.

Claim 47

Dependent Claim 32 words

A dispenser according to claim 36, said sloped annular cam surface being formed by and as a part of an annular fire-polished rim formed on said forward end of said glass tubing.

Claim 48

Dependent Claim 16 words

A dispenser according to claim 37, said annular fire-polished rim comprising a fire-polished raised annular bead.

Claim 49

Dependent Claim 27 words

A dispenser according to claim 38, a said sloped annular cam surface being formed on both said glass tubing and the longitudinally inner end of said sleeve.

Claim 50

Dependent Claim 14 words

A dispenser according to claim 30, said nose sleeve sheath being formed of polypropylene.

Claim 51

Dependent Claim 20 words

A dispenser according to claim 30, and a finger-gripping plastic sleeve sheath secured about the rear of said glass tubing.

Claim 52

Dependent Claim 27 words

A dispenser according to claim 27, and a longitudinally manually movable plunger seal slidably disposed in said substantially constant diameter bore rearwardly of said pop-out valve plug.

Claim 53

Dependent Claim 76 words

A dispenser according to claim 27, said barrel section comprising a glass tube formed of a length of die-formed cylindrical glass tubing of substantially constant diameter along its length and of substantially constant wall thickness along its length, said wall thickness being substantially smaller than the inner and outer wall diameters of said glass tubing, said nose section comprising a plastic sleeve sheath secured in annular frictional fit about the forward end of said glass tubing.

Claim 54

Dependent Claim 22 words

A dispenser according to claim 43, said plastic sleeve sheath engaging said forward end of said glass tubing in a stretch fit.

Claim 55

Dependent Claim 22 words

A dispenser according to claim 43, said plastic sleeve sheath being cam stretch fit over said forward end of said glass tubing.

Claim 56

Dependent Claim 33 words

A dispenser according to claim 45, and a sloped annular cam surface formed on one of the longitudinally inner end of said nose sheath and the respective forward end of said glass tubing.

Claim 57

Dependent Claim 21 words

A dispenser according to claim 46, said sloped annular cam surface being formed on said forward end of said glass tubing.

Claim 58

Dependent Claim 15 words

A dispenser according to claim 46, said sloped annular cam surface being an annular bevel.

Claim 59

Dependent Claim 17 words

A dispenser according to claim 46, said sloped annular cam surface being smoothly arcuate in longitudinal section.

Claim 60

Dependent Claim 33 words

A dispenser according to claim 49, said sloped annular cam surface being formed by and as a part of an annular fire-polished rim formed on said forward end of said glass tubing. 51

Claim 61

Dependent Claim 16 words

A dispenser according to claim 50, said annular fire-polished rim comprising a fire-polished raised annular bead.

Claim 62

Dependent Claim 27 words

A dispenser according to claim 51, a said sloped annular cam surface being formed on both said glass tubing and the longitudinally inner end of said sleeve.

Claim 63

Dependent Claim 33 words

A dispenser according to claim 27, said fluid by-pass cavity being substantially cylindrical and having a circumferentially oversized interior relative to said plug, along a length greater than the length of said plug.

Claim 64

Dependent Claim 19 words

A dispenser according to claim 27, said oversized interior of said cavity being substantially cylindrical along a length thereof.

Claim 65

Dependent Claim 18 words

A dispenser according to claim 54, said oversized interior of said cavity being substantially cylindrical along its length.

Claim 66

Dependent Claim 33 words

A dispenser according to claim 27, said fluid by-pass cavity being substantially cylindrical and having a circumferentially oversized interior relative to said plug, along a length greater than the length of said plug.

Claim 67

Dependent Claim 31 words

A dispenser according to claim 27, said fluid by-pass cavity having an oversized interior relative to said plug, along a length thereof greater than the effective sealing length of said plug.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1979-07-06	1980-01-05	1980-07-06	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1983-07-06	1984-01-05	1984-07-06	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1987-07-06	1988-01-05	1988-07-06	$7700.00	Window Closed / Lapsed

Syringe assembly with contained pop-out elastic plug seal

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