trap-forming device and toilet bowl provided with such a device
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United States of America Patent
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-
Aug 19, 1997
Grant Date -
N/A
app pub date -
Sep 14, 1995
filing date -
Jan 27, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A trap-forming device that includes a hollow body having an upstream orifice situated in a bottom portion of the body for communicating with an upstream length of fluid evacuation pipework, and a downstream orifice situated in the bottom portion of the body for communicating with a downstream length of the evacuation pipework. The device also includes a retainer defining an overflow edge and cooperating with a portion of the upstream length of pipework to retain a barrier-forming quantity of fluid, and a control displacement mechanism for displacing the retainer between an active position and retracted position. The trap-forming device may be connected to a toilet bowl.
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