Back to results
US 5,295,613 AGranted
Tubular cartridge for storing and applying a non-solid product, and a drive and thrust assembly for the cartridge
AssigneeSociete De Prospection Et D'Inventions Techniques Spit
InventorsJean-Paul Barthomeuf, Alain Gauthier
Life of this patent
Estimating the term…
Abstract
A cartridge has a multiple casing comprising an outer casing (1) with a front end piece (2) for receiving an application nozzle and an annular rear thrust wall (4) mounted slidingly in the outer casing (1), and at least one inner casing (5) with a front end piece (6) extending inside the end piece (2) of the outer casing (1) and a disc-shaped rear thrust wall. Shoulders and ribs (8, 14, 16) for connecting the two outer (1) and inner (5) casings together ensures their mutual locking in axial and radial positions. A drive assembly is structured like the cartridge. The invention is well suited to the application of sealing resins.
Claims20
A tubular cartridge for storing and dispensing a plurality of materials, comprising:
- an outer casing for housing a first one of said plurality of materials to be stored and dispensed;
- means defined upon a front end portion of said outer casing for supporting a dispensing nozzle for dispensing said first one of said plurality of materials;
- plunger means movably disposed within said outer casing between a rearward position and a forward position for causing said first one of said plurality of materials to be dispensed outwardly from said outer casing and through said dispensing nozzle as said plunger means is moved within said outer casing from said rearward position to said forward position;
- an inner casing disposed within said outer casing for housing a second one of said plurality of materials to be stored and dispensed;
- means defines upon a front end portion of said inner casing for supporting a dispensing nozzle for dispensing said second one of said plurality of materials;
- plunger means movably disposed within said inner casing between a rearward position and a forward position for causing said second one of said plurality of materials to be disposed outwardly from said inner casing and through said dispensing nozzle of said inner casing as said plunger means of said inner casing is moved within said inner casing from said rearward position to said forward position;
- support means, having front and rear support surfaces, fixedly mounted within said front end portion of said outer casing;
- and
- axially spaced front and rear shoulder means, defining an annular recess therebetween, provided upon said front end portion of said inner casing, said rear shoulder means abutting said rear support surface of said support means of said outer casing while said support means of said outer casing is accommodated within said annular recess of said inner casing, and said front shoulder means snap-fittingly engaging said front support surface of said support means of said outer casing so as to fixedly mount said front end portion of said inner casing within said front end portion of said outer casing.
6 more elements
A tubular cartridge for storing and dispensing a plurality of materials, comprising:
- an outer casing for housing a first one of said plurality of materials to be stored and dispensed;
- means defined upon a front end portion of said outer casing for supporting a dispensing nozzle for dispensing said first one of said plurality of materials;
- plunger means movably disposed within said outer casing between a rearward position and a forward position for causing said first one of said plurality of materials to be dispensed outwardly from said outer casing and through said dispensing nozzle as said plunger means is moved within said outer casing for said rearward position to said forward position;
- at least one inner casing disposed within said outer casing for housing at least an additional one of said plurality of materials to be stored and dispensed;
- means defined upon a front end portion of said at least one inner casing for supporting a dispensing nozzle for dispensing said at least an additional one of said plurality of materials;
- plunger means movably disposed within said at least one inner casing between a rearward position and a forward position for causing said at least an additional one of said plurality of materials to be dispensed outwardly from said at least one inner casing and through said dispensing nozzle of said at least one inner casing as said plunger means of said at least one inner casing is moved within said at least one inner casing from said rearward position to said forward position;
- support means, having front and rear support surfaces, fixedly mounted within said front end portion of said outer casing;
- and
- axially spaced front and rear shoulder means, defining an annular recess therebetween, provided upon said front end portion of said at least one inner casing, said rear shoulder means abutting said rear support surface of said support means of said outer casing while said support means of said outer casing is accommodated within said annular recess of said inner casing, and said front shoulder means snap-fittingly engaging said front support surface of said support means of said outer casing so as to fixedly mount said front end portion of said at least one inner casing within said front end portion of said outer casing.
6 more elements
Dependencies are inferred from the claim text.