Valve

Details Valve Valve

1977-10-04

1980-05-13

Schwadron, Martin P.

Valves and valve actuation

Fluid actuated or retarded

Dashpot or fluid controlled retarder or timer

92143, 13751215, 251 52, 277168, 277170, F16K 31143

Patent

active

042025265

ABSTRACT:
The valve having a casing with an inflow and outflow connection which can be separated from or connected to one another by means of a movable valve member which can be brought to bear against a valve seat, the movable valve member being provided with a damping mechanism which prevents blow-like, rapid actuation at least in the closing direction. The damping or restraining mechanism consists of a displacer which is mechanically connected with the valve member, said displacer, during the movement of the valve member, slowly changing its volume through a narrow passage or leak. A non-return valve allows a more rapid movement in the opposite direction.

REFERENCES:
patent: 132523 (1872-10-01), Cooper
patent: 374637 (1887-12-01), Smith
patent: 793698 (1905-07-01), Walter
patent: 1299815 (1919-04-01), Bayles
patent: 1520892 (1924-12-01), Steensen
patent: 1634949 (1927-07-01), LeValley
patent: 1655729 (1928-01-01), Jones
patent: 2236320 (1941-03-01), Mosel
patent: 2270932 (1942-01-01), Cornelius
patent: 2368744 (1945-02-01), Carey
patent: 2614793 (1952-10-01), Storm
patent: 2918248 (1959-12-01), Schoenrock, Jr.
patent: 3102711 (1963-09-01), Filliung
patent: 3347555 (1967-10-01), Norton
patent: 3423064 (1969-01-01), Harland et al.
patent: 3933337 (1976-01-01), Morris et al.
patent: 4027849 (1977-06-01), Muller

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