Dispenser for medicaments and method and apparatus for...

Details Dispenser for medicaments and method and apparatus for... Dispenser for medicaments and method and apparatus for...

2006-01-10

2008-10-21

Sirmons, Keivn C. (Department: 3767)

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

Mold having movable core or movable pin

C264S328100, C425S556000

Reexamination Certificate

active

07438552

ABSTRACT:
A dispenser assembly for liquid products comprising an elongated, generally cylindrical barrel of a predetermined internal cross-sectional diameter having a discharge opening at one end and open at its opposite end, an elongated, generally cylindrical hollow plunger having an outer diameter less than the barrel internal diameter and a circumferentially extending axially directed sealing lip adjacent the tip portion having an outer diameter greater than the internal diameter of the barrel in the relaxed state to thereby flex the lip inwardly against its bias and providing the sole sliding contact between the plunger and barrel when the plunger and barrel are actuated axially relative to one another.

REFERENCES:
patent: 5411489 (1995-05-01), Pagay et al.
patent: 5735825 (1998-04-01), Stevens et al.
patent: 5935104 (1999-08-01), Janek et al.
patent: 5958321 (1999-09-01), Schoelling et al.
patent: 6224577 (2001-05-01), Dedola et al.
patent: 6562009 (2003-05-01), Schottli

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