Double action trigger sprayer
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United States of America Patent
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-
Jan 27, 1998
Grant Date -
N/A
app pub date -
Mar 25, 1996
filing date -
Aug 7, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is a continuous action trigger sprayer for spraying liquid material. It includes a main housing having connectors to a container and having an operation cylinder and a liquid chamber. It also includes a pumping element which is within the operation cylinder and has a valve seat, a one-way valve and a pumping rod, which permits liquid material to pass therethrough in a relative direction toward a spray nozzle, but not toward the liquid chamber. There is a relief valve having a seat with an opening therethrough and a relief passage to bleed liquid back to the container and which cooperates with the pumping element. There is also a trigger which moves the pumping element.
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