发明名称 Magnetic drain plug
摘要 A magnet set forth used is in a drain plug. A drain plug is assembled with an attached holder securing an inserted cylindrical magnet. The drain plug is formed of non ferrous material such as brass, aluminum, stainless steel, etc. It is constructed in accordance with industry standards to fit as a replacement device in oil drain pans, and is non ferrous material. It incorporates an extending threaded shaft. The holder is constructed with an axial passage there through having threads at the small end for threading through the drain plug. The passage extends fully through the device, interrupted by a transverse internal registration shoulder at the middle, and defines an extending skirt fitting loosely around an elongate cylindrical rare earth magnet.
申请公布号 US5949317(A) 申请公布日期 1999.09.07
申请号 US19980052406 申请日期 1998.03.31
申请人 FINK, RANDY;ERICKSON, BRUCE 发明人 FINK, RANDY;ERICKSON, BRUCE
分类号 B03C1/00;B03C1/28;F01M11/03;F01M11/04;(IPC1-7):H01F7/02 主分类号 B03C1/00
代理机构 代理人
主权项
地址