Compartmental cartridge

Claim 2

A cartridge for simultaneously dispensing at least two different materials, said cartridge comprising: (a) an elongated hollow housing; (b) at least one partition within said housing extending laterally and longitudinally thereof to divide the housing into at least two chambers each for holding one of said different materials; (c) a plunger received in said housing for movement longitudinally thereof; (d) a dispensing orifice in said housing for each of said chambers; the plunger comprising: (e) piston means having a first face for acting on said materials to dispense them from said housing, said piston means including means for sealingly engaging said housing and said partition; (f) severing means following said piston means and being spaced from said materials by said piston means, said severing means being adapted to sever said partition from said housing; and (g) means for storing said severed partition so as not to interfere with the operation of said cartridge.

Claim 3

A cartridge as in claim 1 wherein said severing means comprises a push ring having cutting edges for severing said partition, said push ring supporting a second face of said piston means opposing said first face, said push ring further comprising a container comprising said means for storing said severed partition.

Claim 4

A cartridge as in claim 2 wherein said push ring cutting edges are arranged to sever said partition at longitudinal edges thereof adjacent said housing.

Claim 5

A cartridge as in claim 3 wherein means are provided within said container for coiling up said severed partition therein.

Claim 6

The cartridge as in claim 3 wherein said partition has a given thickness except at said longitudinal edges which are thinned out from said given thickness.

Claim 7

A cartridge as in claim 3 wherein said push ring is coated with a release agent to provide free movement within said housing.

Claim 8

A cartridge as in claim 3 wherein said push ring is formed of a material which is harder than the material of said partition.

Claim 9

A cartridge as in claim 3 wherein said push ring includes a forward wall for supporting said piston means, said forward wall having a slot therein through which said severed partition passes.

Claim 10

A cartridge as in claim 8 wherein said means for sealingly engaging said housing and said partition comprises edges of said piston means configured to prevent said materials being dispensed from flowing to said push ring.

Claim 11

A cartridge for simultaneously dispensing at least two different materials, said cartridge comprising: (a) an elongated hollow housing; (b) at least one partition within said housing extending laterally and longitudinally thereof to divide the housing into at least two chambers each for holding one of said different materials; (c) a plunger received in said housing for movement longitudinally thereof; (d) a dispensing orifice in said housing for each of said chambers; said plunger comprising: (e) piston means having a first face for acting on said materials to dispense them from said housing, said piston means including means for sealingly engaging said housing and said partition; (f) severing means following said piston means and being spaced from said materials by said piston means, said severing means being adapted to sever said partition from said housing; and (g) means for directing said severed partition into an unoccupied space within said housing so as not to interfere with the operation of said cartridge.

Claim 12

A cartridge for simultaneously dispensing at least two different materials, said cartridge comprising: (a) an elongated hollow housing; (b) at least one partition within said housing extending laterally and longitudinally thereof to divide the housing into at least two chambers each for holding one of said different materials; (c) a plunger received in said housing for movement longitudinally thereof; (d) a dispensing orifice in said housing for each of said chambers; said plunger comprising: (e) piston means having a first face for acting on said materials to dispense them from said housing, said piston means including means for sealingly engaging said housing and said partition; (f) severing means following said piston means and being spaced from said materials by said piston means, said severing means being adapted to sever said partition from said housing; and (g) means for directing said severed partition into an unoccupied space within said housing so as not to interfere with the operation of said cartridge.

Claim 13

A cartridge as in claim 10 wherein said severing means comprises a push ring having cutting edges for severing said partition, said push ring supporting a second face of said piston means opposing said first face.

Claim 14

A cartridge as in claim 11 wherein said push ring cutting edges are arranged to sever said partition at the longitudinal edges thereof adjacent said housing.

Claim 15

A cartridge as in claim 12 wherein said means for directing said partition comprises means supported by said push ring for guiding said partition laterally around a periphery of said push ring so that said partition is stored adjacent an internal longitudinal wall of said housing.

Claim 16

A cartridge as in claim 13 wherein said severing means further includes a cutting edge arranged to sever said partition into at least two parts.

Claim 17

A cartridge as in claim 14 wherein said push ring is coated with a release agent to provide free movement in said housing.

Claim 18

A cartridge as in claim 15 wherein said push ring is formed of a material which is harder than the material of said partition.

Claim 19

A cartridge as in claim 16 wherein said means for sealingly engaging said housing and said partition comprises edges of said piston means configured to prevent said materials being dispensed from flowing to said push ring.

Claim 20

A cartridge for simultaneously dispensing at least two different materials, said cartridge comprising: (a) an elongated hollow housing; (b) at least one partition within said housing extending laterally and longitudinally thereof to divide the housing into at least two chambers each for holding one of said different materials; (c) a plunger received in said housing for movement longitudinally thereof; (d) a dispensing orifice in said housing for each of said chambers; said plunger comprising: (e) piston means having a first face for acting on said materials to dispense them from said housing, said piston means including means for sealingly engaging said housing and said partition; (f) slitting means following said piston means and being spaced from said material by said piston means, said slitting means being adapted to slit said partition into at least two parts which remain attached to said housing; and (g) means for overlapping said parts of said partition and directing said parts of said partition into an unoccupied space within said housing so as not to interfere with the operation of said cartridge.

Claim 21

A cartridge for simultaneously dispensing at least two different materials, said cartridge comprising: (a) an elongated hollow housing; (b) at least one partition within said housing extending laterally and longitudinally thereof to divide the housing into at least two chambers each for holding one of said different materials; (c) a plunger received in said housing for movement longitudinally thereof; (d) a dispensing orifice in said housing for each of said chambers; said plunger comprising: (e) piston means having a first face for acting on said materials to dispense them from said housing, said piston means including means for sealingly engaging said housing and said partition; (f) slitting means following said piston means and being spaced from said material by said piston means, said slitting means being adapted to slit said partition into at least two parts which remain attached to said housing; and (g) means for overlapping said parts of said partition and directing said parts of said partition into an unoccupied space within said housing so as not to interfere with the operation of said cartridge.

Claim 22

A cartridge as in claim 18 wherein said slitting means comprises a push ring having at least one cutting edge for slitting said partition longitudinally and intermediate its longitudinally edges.

Claim 23

A cartridge as in claim 19 wherein said partition has a non-planar cross-section transversely of said housing.

Claim 24

A cartridge as in claim 20 wherein said partition has a U-shaped cross-section.

Claim 25

A cartridge as in claim 21 wherein said slitting means slits said partition approximately in half wherein said means for overlapping said parts of said partition and directing said parts of said partition comprises means for first folding a first half of said partition and for then folding the other half of said partition and for directing said half in an overlapped folded relationship around a periphery of said push ring so that said halves of said partition are stored adjacent an internal longitudinal wall of said housing.

Claim 26

A cartridge as in claim 22 wherein said push ring is coated with a release agent to provide free movement within said housing.

Claim 27

A cartridge as in claim 23 wherein said push ring is formed of a material which is harder than the material of said partition.

Claim 28

A cartridge as in claim 24 wherein said means for sealingly engaging said housing and said partition comprises edges of said piston means configured to prevent said materials being dispensed from flowing to said push ring.