Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1982-05-03
1984-10-23
Walton, George L.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
92129, 92131, 13762566, 251 634, 251 636, 251284, F16K 4300, F16K 31122
Patent
active
044782403
ABSTRACT:
A fluid actuated control device for operable connection with a hydraulic valve, such as a pilot valve, and comprising a coupler bolt secured directly to the valve spool, a fluid actuated cylinder and piston assembly connected with the coupler bolt for reciprocation thereof, a helical spring member disposed around at least a portion of the coupler bolt and cooperating with a pair of oppositely disposed spring retainer cups for maintaining a normal neutral position for the valve spool, the coupler bolt being reciprocal by the fluid actuated cylinder and piston assembly upon the application of fluid pressure to the assembly for shifting of the valve spool from a remote position without interference with the normal manual operation of the valve.
REFERENCES:
patent: 2439523 (1948-04-01), Miller et al.
patent: 2665713 (1954-01-01), Crookston et al.
patent: 2928380 (1960-03-01), Krapf
patent: 3472269 (1969-10-01), Scholle
patent: 3991661 (1976-11-01), Mocha
patent: 4114378 (1978-09-01), Stanuszek
patent: 4372333 (1983-02-01), Goans
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