Fluid dispenser pump

Details Fluid dispenser pump Fluid dispenser pump

2005-08-16

2005-08-16

Nicolas, Frederick (Department: 3754)

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

C222S385000

Reexamination Certificate

active

06929156

ABSTRACT:
A manually-actuated fluid dispenser pump including a pump body (10) and a piston (50) mounted to slide in leaktight manner in the pump body (10) between a rest position and a dispensing position. The piston is provided with a top sealing lip (52) in leaktight contact with the pump body (10). The pump includes an abutment member (80), fitted into the top edge of the pump body (10) and co-operating with the piston (50) to define its rest position. The top lip (52) of the piston (50) is made up of a first lip portion (53) co-operating in leaktight manner with the pump body (10) and of a second lip portion (54) co-operating in leaktight manner with the abutment in the rest position, and wherein the first and second lip portions (53, 54) are substantially parallel and spaced apart radially from each other.

REFERENCES:
patent: 3044413 (1962-07-01), Corsette
patent: 3583605 (1971-06-01), Corsette
patent: 4434916 (1984-03-01), Ruscitti et al.
patent: 5234135 (1993-08-01), LaFosse et al.
patent: 5511698 (1996-04-01), Solignac
patent: 5671874 (1997-09-01), Behar et al.
patent: 6036059 (2000-03-01), VanBrocklin
patent: 6145710 (2000-11-01), Carter
patent: 6334549 (2002-01-01), Fernandez et al.
patent: 6398079 (2002-06-01), Garcia et al.
patent: 6536630 (2003-03-01), Chan et al.
patent: 6634872 (2003-10-01), Bougamont et al.
patent: 2 560 160 (1985-08-01), None

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