Mechanically self actuated liquid level sensor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 2, 2008
Grant Date -
Jul 12, 2007
app pub date -
Jan 10, 2006
filing date -
Jan 10, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A liquid level sensor for measuring liquid levels in underground and above ground containers includes a frame formed to have an elongate hollow tubular configuration that encloses a cavity. A cam pivot has an end extending into the cavity from a first inner wall portion of the frame. A cam is arranged to be pivotal about the end of the cam pivot. A float is placed in the cavity. A spring is arranged to bias the cam arm into contact with the float to force a side portion of the float into a locked position in frictional engagement with the second inner wall portion of the frame. A cam actuator pivotally mounted in a lower end portion of the frame exerts a force on the cam arm to release the float from the locked position when the lower end of the frame contacts the container bottom.
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