Fluid dispenser pump

Details Fluid dispenser pump Fluid dispenser pump

2005-07-19

2005-07-19

Jacyna, J. Casimer (Department: 3751)

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

C222S321200, C239S333000

Reexamination Certificate

active

06918514

ABSTRACT:
A manually-actuated fluid dispenser pump including a pump body (10) and at least one piston (50, 55) mounted to slide in leaktight manner in said pump body (10) between a rest position and a dispensing position, said pump being characterized in that the pump body (10) is frustoconical at least in part so as to modify the radial stresses exerted on said at least one piston (50, 55) between said rest position and said dispensing position.

REFERENCES:
patent: 2657834 (1953-10-01), Bacheller
patent: 3940070 (1976-02-01), Boris
patent: 5375745 (1994-12-01), Ritsche
patent: 5579958 (1996-12-01), Su
patent: 0 493 643 (1992-07-01), None

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