Fluid handling – Systems – Multi-way valve unit
Patent
1974-06-24
1976-08-31
Freeh, William L.
Fluid handling
Systems
Multi-way valve unit
417218, 91506, E03B 500, F04B 4900
Patent
active
039774376
ABSTRACT:
Control valve assemblies are taught which can be inserted into or associated with a basic primary unit for causing such basic primary unit to perform with optimum performance characteristics as a pump or motor, and a master or slave unit, etc. The function that the basic primary unit performs depends upon the control valve assembly selected. In the preferred embodiment of the control valve assembly, there is provided a central coaxial probe which passes through a bore in the spool valve body and is reponsive to a signal which is in addition to the other signals being sensed by the control valve assembly.
REFERENCES:
patent: 2379546 (1945-07-01), Snader et al.
patent: 2732808 (1956-01-01), Stoyke
patent: 3009422 (1961-11-01), Davis et al.
patent: 3017750 (1962-01-01), Kempson
patent: 3384027 (1968-05-01), Jennings et al.
patent: 3667867 (1972-06-01), Boydell et al.
patent: 3738779 (1973-06-01), Hein et al.
patent: 3806280 (1974-04-01), Bobier
patent: 3834280 (1974-09-01), Jones
patent: 3834836 (1974-09-01), Hein et al.
Freeh William L.
La Pointe G. P.
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