Valves and valve actuation – Valve head movably connected for accommodation to seat – With universal connection
Patent
1982-08-31
1984-08-28
Walton, George L.
Valves and valve actuation
Valve head movably connected for accommodation to seat
With universal connection
137315, 1374545, 251268, 251270, F16K 2500, F16K 3150
Patent
active
044680015
ABSTRACT:
In order to minimize wear and an over tightening effect in a shut-off valve (10) intended primarily for sanitation valves, which has a valve housing (12) a valve piston (16) that can be displaced axially by the operation of an element such as a handle (52) with a valve head (18) which can be lowered onto a valve seat (20) and raised from this and which is arranged upwards in the direction of flow relative to this, the valve piston is housed in a holding element (40) which can be displaced by means of a cylinder-shaped guide element (32) used to achieve the axial movement, which, with its (lower) edge area (36) is housed by the valve housing (12) and with the other (upper) edge area interacts with a further element (30) that holds the valve seat, in which connection the guide element together with the holding element can be rotated relative to the further element that contains the valve seat and to the valve housing (12) if the valve piston is located in its end position.
REFERENCES:
patent: 2089848 (1937-08-01), Hoferle
patent: 2213998 (1940-09-01), Sifkovitz
patent: 2520092 (1950-08-01), Fredrickson et al.
patent: 3006361 (1961-10-01), Reinemann
patent: 3052258 (1962-09-01), Keller
patent: 3389717 (1968-06-01), Povalski et al.
patent: 4109672 (1978-08-01), Szemeredi
patent: 4368754 (1983-01-01), Roberts
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