Valves and valve actuation – With correlated flow path – With mounting or support
Patent
1982-11-22
1985-07-09
Rosenthal, Arnold
Valves and valve actuation
With correlated flow path
With mounting or support
137 82, F16K 3110
Patent
active
045277729
ABSTRACT:
A flapper-poppet (new) that differs from a flapper-nozzle (old) in that the flapper-nozzle is a second stage operator that employs an amplifier which operates on de-amplified pressure. Although both the flapper-poppet and the flapper-nozzle are controlled by a conventional torque motor, the flapper-poppet is a first stage operator which operates on high supply pressure.
REFERENCES:
patent: 2121321 (1938-06-01), Kronmiller
patent: 2636516 (1953-04-01), Armstrong et al.
patent: 3284044 (1966-11-01), Zaleske et al.
patent: 4120481 (1978-10-01), von Koch
patent: 4268009 (1981-05-01), Allen, Jr.
George Marion L.
Kebede Berhanu
Christopher J. S.
International Telephone & Telegraph Corp.
Peterson T. L.
Rosenthal Arnold
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