Inlet valve mechanism
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United States of America Patent
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Apr 28, 1998
Issued Date -
N/A
app pub date -
Nov 26, 1996
filing date -
Sep 29, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An interlock mechanism (6-9, 41-47) for a cistern or flush tank (1) has an underwater flush valve (3). The interlock mechanism is linked with the float arm (7, 57) of an inlet valve (5, 50). The interlock mechanism latches the float arm in its raised position in the event of a leaky flush valve (3). Thus although a single cistern volume is lost there is no further loss. The next time a flush actuator (10) is operated the interlock mechanism in unlatched allowing the cistern to re-fill. The rising water re-sets the interlock latch mechanism.
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