发明名称 DRAIN FITTING WITH FRICTIONAL SEAL RETENTION
摘要 A fitting for coupling a drain pipe to an opening in the base of a shower or other installation where water may accumulate includes a cylindrical body fitted into the opening in coaxial relationship with the pipe and is of greater diameter than the pipe to provide an annular gap between the body and pipe. A resilient annular seal disposed in the gap is proportioned to be radially compressed between the body and pipe and has an annular slot extending downward within the seal from the upper surface of the seal. A rigid annular compressor member is wedged into the slot to increase radial compression at the upper portion of the seal. The construction can be easily installed and removed and tolerates small variations in the vertical position of the shower base relative to the drain pipe.
申请公布号 PH24022(A) 申请公布日期 1990.02.09
申请号 PH19360000339 申请日期 1986.06.24
申请人 CASPER CUSCHERA 发明人 CASPER CUSCHERA
分类号 E03C1/12;E03C1/122;E03C1/22;E03F5/04;F16L41/08 主分类号 E03C1/12
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