Apparatus for spraying a liquid from a container

Details Apparatus for spraying a liquid from a container Apparatus for spraying a liquid from a container

1991-10-23

1993-06-29

Huson, Gregory L.

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

22240219, 222464, 239334, B67D 8854

Patent

active

052226360

ABSTRACT:
A pump sprayer for pharmaceutical or cosmetic products provides for consistent spray regardless of the orientation of the container. A gravity-actuated valve element coacts with a valve seat to close a secondary passage to the pump when the container is in a normal upright position. In an inverted position the valve opens and the pump intakes from the secondary passage which draws from the area of the top of the container, opposite the primary pump dip tube intake at the base of the container. The valve casing which includes the valve seat has an insertion aperture for the valve element, as well as an axial slot to insure communication of the secondary passage with the pump when the container is in the inverted position.

REFERENCES:
patent: 994938 (1911-06-01), Larimore
patent: 2132035 (1938-10-01), Leipold
patent: 2256902 (1941-09-01), Huthsing
patent: 3315693 (1967-04-01), Braun
patent: 3542254 (1970-11-01), Samuelson
patent: 4277001 (1981-07-01), Nozawa
patent: 4371098 (1983-02-01), Nozawa et al.
patent: 4775079 (1988-10-01), Grothoff
patent: 4942985 (1990-07-01), Schultz

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