Fluid pump with secure mounting to receptacle stopper

Details Fluid pump with secure mounting to receptacle stopper Fluid pump with secure mounting to receptacle stopper

1993-08-05

1995-01-03

Huson, Gregory L.

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222385, B65D 8854

Patent

active

053778812

ABSTRACT:
A fluid substance dispenser includes a pump mounted on a stopper 20 designed to be fixed on a neck of a receptacle. The pump includes a body 1, a piston 2 that slides axially inside the pump body, a return spring 10 that urges the piston towards the open end of the body, and a single piece ferrule 11 fixed in the open end of the pump body to limit motion of the piston towards the second end. The ferrule has a flange 11a which extends radially outwards, and is engaged as a force-fit inside an internal passage 28 of the stopper to hold the pump in the stopper, preventing the pump body from moving towards the outside of the receptacle. The ferrule is made of a harder plastics material than the stopper so that the radial flange bites into the stopper.

REFERENCES:
patent: 5033655 (1991-07-01), Brown

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