Extrusion packages for viscous materials

Claim 2

A substantially round container for extrudable viscous material comprising: a rigid container body having at least one fully open end and a supply space therein substantially filled with viscous material, said container body having an end wall closing off the other end thereof, said end wall including a spout for dispensing said material, a dispensing unit connected to the open end of the container comprising a rotatable screw member having a threaded portion which extends longitudinally within said container body for substantially most of the length thereof, a piston slidably mounted for longitudinal movement within said container body and an opening threaded over said threaded portion of said screw member, ratchet means releasably attachable to the screw member and rotatable to transfer rotation to the screw member and longitudinal movement to the piston thus dispensing the material through the spout, said screw member releasably secured to said piston opening and to an opening in the end wall, resiliently biased sealing flaps secured adjacent the piston opening and the opening in the end wall, upon removal of the screw member the sealing flaps close the openings, whereby the material within the container may be dispensed in a conventional caulking gun.

Claim 3

A substantially round container for extrudable viscous material comprising: a rigid container body having at least one fully open end, said open end provided with a tension flange, and a supply space therein substantially filled with viscous material, said container body having said open end provided with a tension flange and said container body also having an end wall closing off the other end thereof, said end wall including a spout for dispensing said material, a dispensing unit attachable to the open end of the container comprising a rotatable screw member having a threaded portion which can extend longitudinally within said container for substantially most of the length thereof, a thrust cap with a central thrust bearing to which said rotatable screw member is affixed, which cap may be firmly attached to said tension flange of the open end wall, a piston slidably mounted for longitudinal movement within said container body, said piston having a central threaded opening to fit over said threaded portion of said screw member, said threaded opening being provided with a frangible seal rupturable by insertion of said rotatable screw member, ratchet means releasably attached to said screw member and rotatable to transfer rotation to the screw member and longitudinal movement to the piston to thus dispense the extrudable material through the spout, and whereby the material in said container may be dispensed in a conventional caulking gun without the attachment of said dispensing unit.

Claim 4

A substantially round container for extrudable viscous material comprising: a rigid container body having at least one fully open end, said open end provided with a tension flange, and a supply space therein substantially filled with viscous material, said container body having said open end provided with a tension flange and said container body also having an end wall closing off the other end thereof, said end wall including a spout for dispensing said material, a dispensing unit attachable to the open end of the container comprising a rotatable screw member having a threaded portion which can extend longitudinally within said container for substantially most of the length thereof, a thrust cap with a central thrust bearing to which said rotatable screw member is affixed, which cap may be firmly attached to said tension flange of the open end wall, a piston slidably mounted for longitudinal movement within said container body, said piston having a central threaded opening to fit over said threaded portion of said screw member, said threaded opening being provided with a frangible seal rupturable by insertion of said rotatable screw member, ratchet means releasably attached to said screw member and rotatable to transfer rotation to the screw member and longitudinal movement to the piston to thus dispense the extrudable material through the spout, and whereby the material in said container may be dispensed in a conventional caulking gun without the attachment of said dispensing unit.

Claim 5

A substantially round container for extrudable viscous material comprising: a rigid container body having at least one fully open end and a supply space therein substantially filled with viscous material, said container having an end wall closing off the other end thereof, said end wall including a spout for dispensing said material, a dispensing unit connected to the open end of the container comprising a rotatable screw member having a threaded portion which extends longitudinally within said container body for substantially all the length thereof, a piston slidably mounted for longitudinal movement within said container body and an opening threaded to fit over said threaded portion of said screw member, ratchet means releasably attached to the screw member and rotatably to transfer rotation to the screw member and longitudinal movement to the piston thus dispensing the material through the spout, said screw member releasably secured to said piston opening and to an opening in the end waLl, resilient plastic tubing secured to the piston opening and to the opening in the end wall, and covering said threaded member whereupon removal of the screw member the tubing continues to seal the openings whereby the material within the container may be dispensed in a conventional caulking gun.

Claim 6

A substantially round container for extrudable viscous material comprising: a rigid container body having at least one fully open end and a supply space therein substantially filled with viscous material, said container having an end wall closing off the other end thereof, said end wall including a spout for dispensing said material, a dispensing unit connected to the open end of the container comprising a rotatable screw member having a threaded portion which extends longitudinally within said container body for substantially all the length thereof, a piston slidably mounted for longitudinal movement within said container body and an opening threaded to fit over said threaded portion of said screw member, ratchet means releasably attached to the screw member and rotatably to transfer rotation to the screw member and longitudinal movement to the piston thus dispensing the material through the spout, said screw member releasably secured to said piston opening and to an opening in the end waLl, resilient plastic tubing secured to the piston opening and to the opening in the end wall, and covering said threaded member whereupon removal of the screw member the tubing continues to seal the openings whereby the material within the container may be dispensed in a conventional caulking gun.

Claim 7

A substantially round longitudinally compartmented container for extrudable viscous materials comprising two partially cylindrical container bodies each having at least one fully open end and a supply space therein substantially filled with viscous material, each container having an end wall closing off the other end thereof, said end wall including an orifice for dispensing each of said materials, and said open end walls provided with a tension flange, a dispensing unit connected to the open end of the containers comprising two rotatable screw members having threaded portions which extend longitudinally within said container bodies for substantially all the length thereof, two partially round pistons slidably mounted for longitudinal movement within said container bodies and openings threaded over said threaded portions of said screw members, a thrust cap with thrust bearings to which said rotatable screw members are affixed, wherein said cap has attached a central shaft with a geared wheel to engage other geared wheels attached to said screw members to rotate said screw members and which said cap is firmly attached to said tension flange of the open end wall, ratchet means attached to the central shaft and rotatable to transfer rotation to the screw members and longitudinal movement of the pistons to thus dispense the extrudable materials through the orifices.

Claim 8

A substantially round longitudinally compartmented container for extrudable viscous materials comprising two partially cylindrical container bodies each having at least one fully open end and a supply space therein substantially filled with viscous material, each container having an end wall closing off the other end thereof, said end wall including an orifice for dispensing each of said materials, and said open end walls provided with a tension flange, a dispensing unit connected to the open end of the containers comprising two rotatable screw members having threaded portions which extend longitudinally within said container bodies for substantially all the length thereof, two partially round pistons slidably mounted for longitudinal movement within said container bodies and openings threaded over said threaded portions of said screw members, a thrust cap with thrust bearings to which said rotatable screw members are affixed, wherein said cap has attached a central shaft with a geared wheel to engage other geared wheels attached to said screw members to rotate said screw members and which said cap is firmly attached to said tension flange of the open end wall, ratchet means attached to the central shaft and rotatable to transfer rotation to the screw members and longitudinal movement of the pistons to thus dispense the extrudable materials through the orifices.

Claim 9

The device in claim 4 wherein the screw members are releasably attached and the two pistons may be engaged in a conventional type caulking gun with a split pressure drive.

Claim 10

The device in claim 4 wherein the central shaft extends through the center of the container in an axial tubular structure and to which central shaft is attached a device for mixing materials extruded by the two pistons.