Device for the remote control of pneumatically operated mechanis

Details Device for the remote control of pneumatically operated mechanis Device for the remote control of pneumatically operated mechanis

1986-06-27

1990-02-20

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

1374895, 251 3005, G05D 912

Patent

active

049017586

ABSTRACT:
An electropneumatic transducer which operates quickly and accurately over a broad range of pressures to control high pressure, high flow devices at their point of operation. The transducer is lightweight and insensitive to position or vibration, and can be readily mounted to the device to be controlled at its workpoint and operated remotely by a process controller or other electrical device. There is also provided both internal and external feedback whereby the repeated accurate operation of the transducer is assured.

REFERENCES:
patent: 2477897 (1949-08-01), Ray
patent: 2736337 (1956-02-01), Parks et al.
patent: 3077552 (1963-02-01), Koppel
patent: 3369561 (1968-02-01), Zimmerman et al.
patent: 3957244 (1976-05-01), Chouvigne
patent: 4244396 (1981-01-01), Friedland et al.
patent: 4253480 (1981-03-01), Kessel et al.
patent: 4355657 (1982-10-01), Reip
patent: 4481967 (1984-11-01), Frick
patent: 4527583 (1985-07-01), Simpson

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