A diaphragm pump which overcomes the problem of diaphragm failure due to overfill of the oil transfer chamber. An overfill preventive element in the form of a mechanical stop, a fully closed coil spring, or a valve system, or alternatives are provided.
申请公布号
WO2004104415(A3)
申请公布日期
2005.05.12
申请号
WO2004US15371
申请日期
2004.05.13
申请人
WANNER ENGINEERING, INC.;LEHRKE, KENNETH, E.;HEMBREE, RICHARD, D.
