Dispenser for flowable materials

Details Dispenser for flowable materials Dispenser for flowable materials

1993-01-04

1996-08-20

Shaver, Kevin P.

Dispensing

Processes of dispensing

222320, 222327, 222386, B67D 500

Patent

active

055471072

ABSTRACT:
A dispenser for flowable materials includes an outer barrel which is telescoped over a plunger. A piston head may be separate and distinct member from the plunger itself and may be prepackaged in the barrel with the material to be dispensed located in a chamber above the piston head. When the barrel is telescoped over the plunger, the piston head seats on the plunger and forces fluid from a dispensing spout in the barrel. The piston head carries a sealing rim which creates a seal as the barrel is moved downwardly on the plunger. The barrel may be in the form of a cartridge mounted in a jacket-like holder with a seal between the cartridge and holder.

REFERENCES:
patent: 1751128 (1930-03-01), Cocks
patent: 2079744 (1937-05-01), Maguire
patent: 2752074 (1956-06-01), Martin
patent: 2758758 (1956-08-01), Schimpf
patent: 2943768 (1960-07-01), Lindsay
patent: 3341084 (1967-09-01), Sundholm
patent: 3472433 (1969-10-01), Thomas
patent: 3493147 (1970-02-01), Ballia
patent: 3767085 (1973-10-01), Cannon et al.
patent: 4848598 (1989-07-01), McKinney
patent: 5044525 (1991-09-01), McKinney
patent: 5092496 (1992-03-01), Gayle et al.
patent: 5289949 (1994-03-01), Gentile
patent: 5295615 (1994-03-01), Gentile
patent: 5335827 (1994-08-01), Gentile

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