发明名称 Mining cylinder hydraulic slide valve
摘要 A slide valve especially designed for mining prop cylinders. The slide valve is durable and can be easily checked and adjusted. An inlet pressure line is separated from an outlet line by a diaphragm pressed against its seat by a spring. A thrust washer allows the diaphragm to remain flat, even when it is subjected to the pressure of the spring.
申请公布号 US4516601(A) 申请公布日期 1985.05.14
申请号 US19820393977 申请日期 1982.06.30
申请人 BENNES MARREL 发明人 CHANAL, ROGER;COTTE, DANIEL
分类号 E21D15/51;E21D23/16;F16K17/04;(IPC1-7):F16K17/04;F16K31/122 主分类号 E21D15/51
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