US3982669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt dispensing apparatus and method
Assignee: INDUSTRIAL MACHINE SERVICE Co
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Filing: 1975-11-20
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Granted: 1976-09-28
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Expires: 1995-11-20
Abstract
Abstract The apparatus of this invention is designed to dispense material from a container. The container is placed on a base of the apparatus between a pair of hydraulically or pneumatically operated telescoping rods that are secured to the base. A cross bar which bridges the rods is secured to the top end of each rod. This cross bar carries two pump motors and a pair of spaced apart rods. The pair of spaced apart rods are each secured to the cross bar at one end and to a follower plate at the other end. The follower plate is surrounded by wipers and if the material that is to be dispensed must be heated before it can be dispensed, either one of two embodiments of an integrally fabricated combination heater-follower plate with wipers is utilized in place of the follower plate. In addition, optional heat radiating fins may be secured to the bottom of either of the two integrally fabricated combination heater-follower plates, if desired. The apparatus also includes a pump coupler, two pumps, a de-areator system and a reservoir surrounding the de-areator. One of the two pumps is used to pump the material out of the container, through the de-areator and into the reservoir, and the other pump is used to pump the material out of the reservoir. The two pumps are each provided with a slip clutch arrangement to provide a regulated flow of the material being dispensed. The telescoping rods are used to lower the follower plate or the integrally fabricated combination heater-follower plate into the container and permit the follower plate or integrally fabricated combination heater-follower plate to move down inside the container as the material is dispensed from the container.
Inventors
- 👤 Leo M. Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:05
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/02; B29B13/022; F; F04; F04B; F04B15/00; F04B15/02; F04B23/00; F04B23/02; F04B23/025; F04B23/028; F04B23/04; F04B23/06; F04B9/00; F04B9/02; B29K; B29K2105/00; B29K2105/0097
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
214 words
A system for dispensing material from a container comprising: a plate having a top surface and a bottom surface and having an aperture therethrough, said plate being shaped to fit inside a container which contains a material that is to be dispensed; resilient wiper means surrounding said plate, said wiper means being adapted to slidably engage the inside surface of said container; a coupler having at least a first chamber and a second chamber, said coupler being secured to said top surface of said plate such that said first chamber communicates with said aperture in said plate; a pump having an inlet secured to said coupler in such a manner that said inlet communicates with said first chamber of said coupler and having an outlet secured to said coupler such that said outlet communicates with said second chamber of said coupler; a hollow standpipe having a first end secured to said coupler in such a manner that said hollow stand-pipe communicates with said second chamber of said coupler; and a de-aerator cap detachably coupled to said second end of said hollow standpipe, whereby said pump when operating pumps said material out of said container through said aperture in said plate, through said hollow standpipe and through said de-aerator cap to thereby remove any entrapped
Claim 2
Independent Claim
214 words
A system for dispensing material from a container comprising: a plate having a top surface and a bottom surface and having an aperture therethrough, said plate being shaped to fit inside a container which contains a material that is to be dispensed; resilient wiper means surrounding said plate, said wiper means being adapted to slidably engage the inside surface of said container; a coupler having at least a first chamber and a second chamber, said coupler being secured to said top surface of said plate such that said first chamber communicates with said aperture in said plate; a pump having an inlet secured to said coupler in such a manner that said inlet communicates with said first chamber of said coupler and having an outlet secured to said coupler such that said outlet communicates with said second chamber of said coupler; a hollow standpipe having a first end secured to said coupler in such a manner that said hollow stand-pipe communicates with said second chamber of said coupler; and a de-aerator cap detachably coupled to said second end of said hollow standpipe, whereby said pump when operating pumps said material out of said container through said aperture in said plate, through said hollow standpipe and through said de-aerator cap to thereby remove any entrapped
Claim 3
Dependent Claim
153 words
A system for dispensing material from a container as defined in claim 1 wherein said coupler includes a third chamber and wherein a second hollow standpipe having a first end and a second end surrounds said hollow standpipe and said de-aerator cap but is spaced apart from said hollow standpipe and said de-aerator cap to thereby form a space between the said second hollow standpipe and said hollow standpipe and said de-aerator cap, said first end of said second hollow standpipe being secured to said coupler such that said second hollow standpipe communicates with said third chamber of said coupler and being so positioned relative to said de-aerator cap that said second end of said second hollow standpipe is approximately adjacent said de-aerator cap, whereby said space between said second hollow standpipe and said hollow standpipe and said de-aerator serves as a reservoir, to receive and store said material as it is pumped
Claim 4
Dependent Claim
24 words
A system for dispensing material from a container as defined in claim 2 wherein means are provided for pumping said material out of said
Claim 5
Dependent Claim
88 words
A system for dispensing material from a container as defined in claim 3 wherein said means to remove material from said reservoir comprises: a second pump having an inlet secured to said coupler such that said inlet of said second pump communicates with third chamber of said coupler and having an outlet, said material being pumped out of said reservoir into said second pump through said inlet of said second pump and out of said second pump through said outlet of said second pump when said second pump
Claim 6
Dependent Claim
24 words
A system for dispensing material from a container as defined in claim 4 including means for receiving said material from said outlet of said
Claim 7
Dependent Claim
78 words
A system for dispensing material from a container as defined in claim 5 wherein said means for receiving said material from said outlet of said second pump comprises: a hose having a first end and a second end, means to secure said first end of said hose to said outlet of said second pump and a dispensing nozzle secured to said second end of said hose, said material being pumped through said nozzle when said second pump is
Claim 8
Dependent Claim
13 words
A system for dispensing material from a container as defined in claim 6
Claim 9
Dependent Claim
172 words
A system for dispensing material from a container as defined in claim 7 wherein said means for moving said plate into and out of said container comprises: a base plate having a first edge and a second edge opposite said first edge; a first vertical cylinder having an end secured to said base plate adjacent said first edge; a first piston vertically movable in said first cylinder; a second vertical cylinder having one end secured to said base plate adjacent said second edge of said base plate; a second piston vertically movable in said second cylinder; a cross-bar secured to the top end of said first piston and to the top end of said second piston, said first and second pistons being spaced apart and said cross-bar bridging the space between said first piston and said second piston; means to suspend said plate from said cross-bar; and fluid means to raise and lower said first and second rods in said first and second cylinders respectively to thereby raise and lower said cross-bar
Claim 10
Dependent Claim
98 words
A system for dispensing material from a container as defined in claim 8 wherein said means to suspend said plate from said cross-bar comprises: a first rod having a first end and a second end; means to secure said first end of said first rod to said cross-bar; means to secure said second end of said first rod to said plate; a second rod having a first end and a second end; means to secure said first end of said second rod to said cross-bar such that said second rod is spaced apart from said first rod; and
Claim 11
Dependent Claim
26 words
A system for dispensing material from a container as defined in claim 9 wherein means for driving both said pump and said second pump are secured
Claim 12
Dependent Claim
58 words
A system for dispensing material from a container as defined in claim 10 wherein said means for driving both said pump and said second pump comprises: a first pump motor secured to said cross-bar and mechanically coupled to said pump through a first slip clutch; and a second pump motor secured to said cross-bar and mechanically coupled to
Claim 13
Dependent Claim
25 words
A system for dispensing material from a container as defined in claim 11 wherein said container from which said material is to be dispensed is
Claim 14
Dependent Claim
35 words
A system for dispensing material from a container as defined in claim 12 wherein an overflow valve is secured to said de-aerator cap and projects into said space between said second hollow standpipe and said
Claim 15
Dependent Claim
35 words
A system for dispensing material from a container as defined in claim 13 wherein said plate is a follower plate having said top surface, said botton surface and said aperture therethrough and having said wipers
Claim 16
Dependent Claim
72 words
A system for dispensing material from a container as defined in claim 14 wherein a plurality of spiral grooves are cut into said botttom surface of said follower plate and a plurality of heating elements equal in number to said plurality of said spiral grooves are seated in said spiral grooves such that one of said plurality of heating elements is seated in each groove thereby forming an integrally fabricated heater-follower plate.
Claim 17
Independent Claim
12 words
A system for dispensing material from a container as defined in claim
Claim 18
Dependent Claim
26 words
A system for dispensing material from a container as defined in claim 16 wherein the number of said plurality of spiral grooves is two and the
Claim 19
Dependent Claim
24 words
A system for dispensing material from a container as defined in claim 17 including heating means for heating said material when said material is
Claim 20
Dependent Claim
36 words
A system for dispensing material from a container as defined in claim 18 wherein said heating means for heating said material when said material is in said reservoir comprises a heating wire wrapped around said second
Claim 21
Dependent Claim
26 words
A system for dispensing material from a container as defined in claim 19 wherein a heating wire is imbedded in said hose to heat said material
Claim 22
Dependent Claim
97 words
A system for dispensing material from a container as defined in claim 14 wherein a plurality of holes are cut into said top surface of said follower plate toward said bottom surface but not through said bottom surface and wherein a plurality of cartridge heaters equal in number to said plurality of holes cut into said top surface of said follower plate are provided, a different one of said plurality of cartridge heaters being inserted into each one of said plurality of holes cut into said top surface of said follower plate thereby forming an integrally fabricated
Claim 23
Dependent Claim
24 words
A system for dispensing material from a container as defined in claim 21 including heating means for heating said material when said material is
Claim 24
Dependent Claim
36 words
A system for dispensing material from a container as defined in claim 22 wherein said heating means for heating said material when said material is in said reservoir comprises a heating wire wrapped around said second
Claim 25
Dependent Claim
26 words
A system for dispensing material from a container as defined in claim 23 wherein a heating wire is imbedded in said hose to heat said material
Claim 26
Dependent Claim
38 words
A system for dispensing material from a container as defined in claim 24 wherein said number of said plurality of holes cut into said top surface of said follower plate is a multiple of three and wherein the
Claim 27
Dependent Claim
39 words
A system for dispensing material from a container as defined in claim 25 wherein the number of said plurality of holes cut into the top surface of said follower plate is twenty-one and the number of said plurality of
Claim 28
Dependent Claim
32 words
A system for dispensing material from a container as defined in claim 13 wherein said plate is an integrally fabricated heater-follower plate having said top surface, said bottom surface and said aperture
Claim 29
Dependent Claim
25 words
A system for dispensing material from a container as defined in claim 26 wherein means are provided to heat said reservoir and wherein means are
Claim 30
Dependent Claim
35 words
A system for dispensing material from a container as defined in claim 27 wherein a plurality of heat radiating fins are secured to said bottom surface of said integrally fabricated heater-follower plate in a defined
Claim 31
Dependent Claim
35 words
A system for dispensing material from a container as defined in claim 15 wherein a plurality of heat radiating fins are secured to said bottom surface of said integrally fabricated heater-follower plate in a defined
Claim 32
Dependent Claim
35 words
A system for dispensing material from a container as defined in claim 21 wherein a plurality of heat radiating fins are secured to said bottom surface of said integrally fabricated heater-follower plate in a defined
Claim 33
Dependent Claim
112 words
In a system for dispensing hot melt material from a container, an integrally fabricated heater-follower plate comprising: a plate having a top surface and a bottom surface; an aperture cut through said plate at approximately the center of said plate; a plurality of grooves cut into the edge of said plate around its entire periphery; a plurality of wipers equal in number to said plurality of grooves, a different one of said plurality of wipers being secured in each one of said plurality of grooves; a plurality of spiral grooves cut into said bottom surface of said plate; and a plurality of heating wires, a different one of said plurality of heating
Claim 34
Dependent Claim
112 words
In a system for dispensing hot melt material from a container, an integrally fabricated heater-follower plate comprising: a plate having a top surface and a bottom surface; an aperture cut through said plate at approximately the center of said plate; a plurality of grooves cut into the edge of said plate around its entire periphery; a plurality of wipers equal in number to said plurality of grooves, a different one of said plurality of wipers being secured in each one of said plurality of grooves; a plurality of spiral grooves cut into said bottom surface of said plate; and a plurality of heating wires, a different one of said plurality of heating
Claim 35
Dependent Claim
154 words
In a system for dispensing hot melt material from a container, an integrally fabricated heater-follower plate comprising: a plate having a top surface and a bottom surface; an aperture cut through said plate at approximately the center of said plate; a plurality of grooves cut into the edge of said plate around its entire periphery; a plurality of wipers equal in number to said plurality of grooves, a different one of said plurality of wipers being secured in each one of said plurality of grooves; a plurality of holes cut into said top surface of said plate toward said bottom surface of said plate but not through said bottom surface of said plate; and a plurality of cartridge heaters equal in number to said plurality of holes cut into said top surface of said plate, a different one of said cartridge heaters being inserted into each one of said plurality of holes cut into
Claim 36
Dependent Claim
154 words
In a system for dispensing hot melt material from a container, an integrally fabricated heater-follower plate comprising: a plate having a top surface and a bottom surface; an aperture cut through said plate at approximately the center of said plate; a plurality of grooves cut into the edge of said plate around its entire periphery; a plurality of wipers equal in number to said plurality of grooves, a different one of said plurality of wipers being secured in each one of said plurality of grooves; a plurality of holes cut into said top surface of said plate toward said bottom surface of said plate but not through said bottom surface of said plate; and a plurality of cartridge heaters equal in number to said plurality of holes cut into said top surface of said plate, a different one of said cartridge heaters being inserted into each one of said plurality of holes cut into
Claim 37
Independent Claim
97 words
A method for dispensing material from a container comprising the steps of: a. placing a follower plate into a container that contains a material that is to be dispensed and on top of said material; b. pumping said material out of said container through said follower plate; c. pumping said material pumped out of said container through a de-aerator; d. accumulating a given amount of said material in said reservoir; and e. pumping said material out of said reservoir at a given rate while at the same time pumping material through said de-aerator at a different rate
Claim 38
Independent Claim
97 words
A method for dispensing material from a container comprising the steps of: a. placing a follower plate into a container that contains a material that is to be dispensed and on top of said material; b. pumping said material out of said container through said follower plate; c. pumping said material pumped out of said container through a de-aerator; d. accumulating a given amount of said material in said reservoir; and e. pumping said material out of said reservoir at a given rate while at the same time pumping material through said de-aerator at a different rate
Claim 39
Independent Claim
139 words
A method for dispensing a hot melt material stored in a container comprising the steps of: a. placing an integrally fabricated heater-follower plate into a container which contains a hot melt material that is to be dispensed and on top of said hot melt material; b. applying heat to said hot melt material in said container; c. pumping said heated hot melt material out of said container through said heater-follower plate, through a de-aerator into a reservoir; d. accumulating a given amount of said heated hot melt material in said reservoir; e. applying heat to said material accumulated in said reservoir; f. pumping said material out of said reservoir through a hose while at the same time pumping said heated hot melt material from said container through said de-aerator into said reservoir; and g. applying heat to said hose.
Claim 40
Independent Claim
139 words
A method for dispensing a hot melt material stored in a container comprising the steps of: a. placing an integrally fabricated heater-follower plate into a container which contains a hot melt material that is to be dispensed and on top of said hot melt material; b. applying heat to said hot melt material in said container; c. pumping said heated hot melt material out of said container through said heater-follower plate, through a de-aerator into a reservoir; d. accumulating a given amount of said heated hot melt material in said reservoir; e. applying heat to said material accumulated in said reservoir; f. pumping said material out of said reservoir through a hose while at the same time pumping said heated hot melt material from said container through said de-aerator into said reservoir; and g. applying heat to said hose.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |