| 摘要 |
PCT No. PCT/FR94/00102 Sec. 371 Date Nov. 6, 1995 Sec. 102(e) Date Nov. 6, 1995 PCT Filed Jan. 27, 1994 PCT Pub. No. WO94/17256 PCT Pub. Date Aug. 4, 1994A 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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