Valves and valve actuation – Valve actuator extending through fluid inlet or outlet
Patent
1975-07-01
1977-04-05
Weakley, Harold W.
Valves and valve actuation
Valve actuator extending through fluid inlet or outlet
2511496, 251332, 13751629, F16K 3100
Patent
active
040158195
ABSTRACT:
This invention relates to the art of pressure vessels and more particularly to a valve assembly for use in a pressure vessel of the type having a rigid container with a deformable bladder therein, dividing the container into two variable volume chambers, one adapted to receive gas under pressure and the other to receive liquid under pressure.
The valve assembly which is screwed into a port in communication with the gas chamber includes a slidably mounted stem having a resilient valve member at one end normally urged to seat on the beveled inner end of an axial bore in the valve assembly in a first seating position of the valve member, and urged further into said beveled inner end when the bladder is charged with gas under pressure in a second seating position of the valve member. The inward movement of the valve member is limited by a stop carried by the stem. When the liquid chamber is charged, if the bladder should abut against the resilient valve member, no extrusion of the bladder would occur.
REFERENCES:
patent: 1917499 (1933-07-01), Conrad
patent: 2397269 (1946-03-01), Kelly
patent: 2994340 (1961-08-01), Biello
patent: 3029835 (1962-04-01), Biello
patent: 3232314 (1966-02-01), Koester
patent: 3351081 (1967-11-01), Bogossian
patent: 3549121 (1970-12-01), Mercier
patent: 3825222 (1974-07-01), Petrova
patent: 3848624 (1974-11-01), Banike
Colvin Arthur B.
Greer Hydraulics, Inc.
Weakley Harold W.
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