Fluid handling – Systems – Valves with separate – correlated – actuators
Patent
1982-05-17
1985-07-02
Walton, George L.
Fluid handling
Systems
Valves with separate, correlated, actuators
74471R, 74471XY, 251294, F16K 3160, F16K 3152
Patent
active
045262047
ABSTRACT:
A two lever, three function control apparatus for hydraulic control valves wherein a first control lever end is connected by a first cable to a first hydraulic valve operator, a link perpendicular to the first cable interconnects the first control lever and one leg of a bellcrank rotatable about on axis parallel to the first control lever. A second leg of the bellcrank disposed at right angles to the first leg is connected to a second cable parallel to the first cable which in turn connects to a second hydraulic operator. Fore-and-aft movement of the first control lever actuate only the first cable and hydraulic valve and transverse movement of the first control lever actuates only the second cable and hydraulic valve. To physically differentiate between the two function, the second bellcrank leg is twice the length of the first leg and a detent mechanism acting on the bellcrank hub is also provided. A second control lever is connected by a third cable to a third hydraulic control valve operator.
REFERENCES:
patent: 2337166 (1943-12-01), Overbeke
patent: 2551442 (1951-05-01), Kuhlman
patent: 2745506 (1956-05-01), McCallum
patent: 2847870 (1958-08-01), Erxleben
patent: 2935890 (1960-05-01), Hall
patent: 3605561 (1971-09-01), Lado
patent: 3795152 (1974-03-01), Campbell
patent: 3897805 (1975-08-01), Casey
patent: 4125034 (1978-11-01), Wineburner
Deutsch Barry E.
Dresser Industries Inc.
Walton George L.
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