Mining cylinder hydraulic slide valve

Details Mining cylinder hydraulic slide valve Mining cylinder hydraulic slide valve

1982-06-30

1985-05-14

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137DIG7, F16K 1704, F16K 31122

Patent

active

045166013

ABSTRACT:
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.

REFERENCES:
patent: 1871535 (1932-08-01), Lattner
patent: 2585575 (1952-02-01), Nedergaard
patent: 2587728 (1952-03-01), Hoskins
patent: 2899973 (1959-08-01), Carlson
patent: 3913613 (1975-10-01), Kostjunin et al.

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