Damping control device

Details Damping control device Damping control device

1990-02-20

1991-04-30

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Dashpot or fluid controlled retarder or timer

92 85B, 188314, F16K 31383

Patent

active

050111116

ABSTRACT:
A damping control device which can be used to control the rate of movement or prevent the movement of a handle or other control means, such as a handle which is used to operate valves. This invention relates to control devices such as handles generally, and is more specifically directed to a damping means which can be used in conjunction with control devices, particularly those used to operate valves, to control the rate of actuation of said control device.

REFERENCES:
patent: 1936788 (1933-11-01), Hardy
patent: 2905462 (1959-09-01), Christensen
patent: 3098502 (1963-07-01), Deve
patent: 3276461 (1966-10-01), Kerensky
patent: 3286797 (1966-11-01), Leibfritz et al.
patent: 3905425 (1975-09-01), Jackson
patent: 4061320 (1977-12-01), Warner
patent: 4255930 (1981-03-01), Natalie
patent: 4493659 (1985-01-01), Iwashita
patent: 4695226 (1987-09-01), Marchitto et al.

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