Compensated force valve with two seats

Details Compensated force valve with two seats Compensated force valve with two seats

1979-02-07

1980-12-16

Schwadron, Martin P.

Valves and valve actuation

Fluid actuated or retarded

Dashpot or fluid controlled retarder or timer

F16K 31122

Patent

active

042391806

ABSTRACT:
A valve for the escape of compressed air in order to extinguish the electric arc between the moving contacts of a circuit-breaker. The arrangement includes an intermediate moving structure between the control rod and the compensated force valve with two seats, said structure being constituted by a cylinder integral with one of the seats and a piston which cooperates with the control rod in order to transmit a rapid and reliable control command.

REFERENCES:
patent: 161977 (1875-04-01), Moore
patent: 374188 (1887-12-01), Hurt
patent: 820598 (1906-05-01), Petersen
patent: 1466412 (1923-08-01), Samain
patent: 1887078 (1932-11-01), Wheaton

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