Flush valve
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United States of America Patent
Stats
-
Apr 15, 1997
Grant Date -
N/A
app pub date -
Sep 27, 1995
filing date -
Sep 27, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A valve for sealing a pipe opening with a seal plate movably attached to the pipe opening and a valve body fixed to the pipe opening. Moving the seal plate towards the pipe opening closes the valve, and moving the seal plate away from the pipe opening opens the valve. The valve body includes a plate stop to limit the movement of the seal plate relative to the pipe opening. For instance, the seal plate, when forced fully away from the pipe opening, is forced to define an oblique plane that is oblique to the plane of the pipe opening. A method of sealing and then unsealing a pipe opening incorporating such a seal plate is also included.
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