专利名称：SLEEVE VALVE发明人：Z. WEINGARTEN申请号：AU7148281申请日：19810610公开号：AU7148281A公开日：19811224
摘要：The wall of an elastomer sleeve valve is provided with a lip-shaped internalsealing member at a median region of the wall; when the valve is closed, the sealingmember forms two lips contacting each other along a substantially diametral plane toproduce sealing, and contacted lips have arcuate ends joining them so that they producethe seal without causing undue stresses in the sleeve wall. In a preferred embodimentthe lips contact each other when no hydraulic pressures are imposed on the sleeve in therest state.
申请人：BERMAD
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