发明名称 SINGLE PLEAT DRAIN PLUNGER
摘要 A drain plunger including an elongate handle having a first end and a second end. A generally cylindrical chamber having a continuous side wall defining a void and having a first end coupled to the handle. A second end of the chamber forms a nozzle defining an opening in communication with the void. Only a single pleat formed in the side wall intermediate the first end of the chamber and the second end of the chamber, the single pleat encircling the void and movable between a compressed position and an expanded position.
申请公布号 US2001037522(A1) 申请公布日期 2001.11.08
申请号 US19990448373 申请日期 1999.11.23
申请人 POOL DAN B.;KREITZER DAVID F. 发明人 POOL DAN B.;KREITZER DAVID F.
分类号 E03C1/308;(IPC1-7):E03D11/00 主分类号 E03C1/308
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