Dispensing cartridge with storage cylinder and dispensing piston

Details Dispensing cartridge with storage cylinder and dispensing piston Dispensing cartridge with storage cylinder and dispensing piston

1991-06-20

1993-01-12

Kashnikow, Andres

Dispensing

With discharge assistant

Container with follower

92181P, B67D 542, B65B 728

Patent

active

051783053

ABSTRACT:
The dispensing cartridge comprises a storage cylinder and a dispensing piston whose bottom surface is progressively recessed from the piston edge towards an aeration bore. An overflow chamber is disposed around said aeration bore, overflow slots being provided in the wall which forms said aeration bore. Said aeration bore is sealed by a closure whose peg portion extends into said bore and whose head is provided with a surrounding bead which snaps into a corresponding annular groove in the outer wall of said overflow chamber. Such a cartridge prevents a disturbing effect of the material flowing out when the dispensing piston is inserted, and during the aeration procedure.

REFERENCES:
patent: 4657161 (1987-04-01), Endo et al.
patent: 4792065 (1988-12-01), Soehnlein et al.
patent: 4819836 (1989-04-01), Meckenstock
patent: 5000355 (1991-03-01), Pritchard

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