Precompression pump sprayer

Details Precompression pump sprayer Precompression pump sprayer

1996-01-29

1997-12-16

Huson, Gregory L.

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

B65D 8854

Patent

active

056975309

ABSTRACT:
A precompression pump sprayer of the type having main and secondary pump cylinders and pistons have a two-piece main piston assembly comprising a separate piston sleeve element of molded compliant material and a hollow piston stem of molded rigid material affixed thereto. The more rigid stem permits a reduction in its overall height and overall diameter, resulting in a reduction of the overall height of the pump sprayer. The cylinder has an extension in frictional engagement with the separate sleeve element of the main piston assembly for fixing the secondary cylinder thereto.

REFERENCES:
patent: 3774849 (1973-11-01), Boris
patent: 4061247 (1977-12-01), Meshberg
patent: 4140249 (1979-02-01), Majima
patent: 4591076 (1986-05-01), Iizuka
patent: 4607765 (1986-08-01), Ruscitti
patent: 4856677 (1989-08-01), Brunet et al.
patent: 4941595 (1990-07-01), Montaner et al.
patent: 4991746 (1991-02-01), Schultz
patent: 5064105 (1991-11-01), Montaner
patent: 5388766 (1995-02-01), Buisson

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