发明名称 STRAINER-STOPPER ASSEMBLY
摘要 A strainer-stopper assembly for location within the usual cylindrical drainage well of a sink, garbage disposer or the like. The assembly includes a resilient annular strainer body adapted for close engagement with the wall of the drainage well. The inner wall of the strainer body is frusto-conical, and a stopper having a frusto-conical outer wall is complementally engaged upon the inner wall of the strainer body. Downward urging of the stopper radially outwardly expands the strainer body into tight, sealing engagement with the adjacent wall of the drainage well.
申请公布号 US3727763(A) 申请公布日期 1973.04.17
申请号 USD3727763 申请日期 1971.08.24
申请人 ARENSKOV P,US 发明人 ARENSKOV P,US
分类号 E03C1/262;(IPC1-7):E03F1/00 主分类号 E03C1/262
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