发明名称 Trap door
摘要 A drain trap which has a removable bottom portion that is attached by means of a hinge element at one end and a catch at an opposite end. Also, the bottom portion of the trap is enlarged to increase water flow and prevent easy clogging of the drain. In addition, a filter element is disposed within the trap and is disposed at an angle, again, to increase water flow and prevent easy clogging of the drain.
申请公布号 US5715550(A) 申请公布日期 1998.02.10
申请号 US19960689672 申请日期 1996.08.13
申请人 GRIFFIN, HARRY G. 发明人 GRIFFIN, HARRY G.
分类号 E03C1/28;(IPC1-7):E03C1/12 主分类号 E03C1/28
代理机构 代理人
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