OTR safety urinal pumps
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United States of America Patent
Stats
-
Nov 7, 1989
Grant Date -
N/A
app pub date -
Apr 14, 1988
filing date -
Apr 14, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tie rod type cylinder valved at its lower plate and having a receiver on its upper plate. A rod-less trunk-like piston containing an inlet valve with a stem projecting out of the cylinder and connected with an actuator. The piston face having an opening acting as a valve seat. A capillary vent tube connecting the top of the cylinder with the mouth of the receiver. When the cylinder is filled to a stop, the actuator is activated, which closes the inlet valve and drives down the stem/valve/piston and it evacuates the cylinder. A flexible discharge line conveys the liquid into a nearby drain pipe or receptacle.
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Family
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