Orifice cover slide for trigger sprayer

Details Orifice cover slide for trigger sprayer Orifice cover slide for trigger sprayer

1995-11-13

1997-08-19

Kashnikow, Andres

Dispensing

With lock or fastening seal

Inhibiting operation of flow controller or closure

2223831, 222559, B67D 540

Patent

active

056579071

ABSTRACT:
A trigger pump sprayer has an external cover plate mounted on and parallel to an end wall of the pump body containing the discharge orifice for transverse sliding movement between an orifice covered position at which a first portion of the cover plate overlies the orifice and an orifice uncovered position at which a second portion of the cover having a through opening lies coaxial with the orifice. Guide tracks on said end wall supporting said plate for sliding movement are sloped toward the end wall for camming an inner surface of the first portion of the plate toward the confronting outer surface of the end wall for fluid tightly sealing the orifice closed against leakage in the covered position.

REFERENCES:
patent: 4346821 (1982-08-01), Wesner et al.
patent: 4505400 (1985-03-01), Bennett
patent: 4606480 (1986-08-01), Gazulla
patent: 4637531 (1987-01-01), Olsson
patent: 4679712 (1987-07-01), Foster et al.

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