Hand operated sprayer with automatic contaner vent

Details Hand operated sprayer with automatic contaner vent Hand operated sprayer with automatic contaner vent

B - Operations, Transporting

05

B

222/76

B05B 11/00 (2006.01)

Patent

CA 1107698

U01 CP INVENTORS Emile B. Steyns Jerry H. Miller By Thomas W. Brennan TITLE: HAND OPERATED SPRAYER WITH AUTOMATIC CONTAINER VENT ABSTRACT OF THE INVENTION: The problem of venting the interior of a liquid container utilizing an attached hand-operated, trigger sprayer of the piston or plunger pump type is solved by the provision of a vent passage in the housing of the pump which communicates with the container interior. The piston which is reciprocated in a bore or chamber in the housing has a seal means associated therewith and with the vent passage so that in operation in spraying the container is vented and vacuum development in the container is avoided. In a preferred embodiment said seal means is associated with an entrance or opening to the vent passage so as to provide a seal against liquid leakage from the container when the piston of the pump is in an at rest, non-pumping position and yet permits, venting of the container when the piston is in a pumping position.

271298

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