Combined check valve and pressure sensor
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United States of America Patent
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-
Nov 11, 1997
Grant Date -
N/A
app pub date -
Aug 2, 1995
filing date -
Aug 2, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A check valve, for use in a vacuum accumulator. The check valve includes a movable gate, which blocks fluid flow. The gate carries a first electrical contact, which mates with a second electrical contact, when the gate closes, thereby issuing a signal which indicates closure. The invention eliminates the need for a separate pressure sensor, for sensing pressure within the accumulator.
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