Valves and valve actuation – Fluid actuated or retarded – Venturi or line flow effect assisted
Patent
1978-09-20
1980-11-25
Rosenthal, Arnold
Valves and valve actuation
Fluid actuated or retarded
Venturi or line flow effect assisted
251 30, 251 46, F16K 31385
Patent
active
042354145
ABSTRACT:
The valve comprises a flap controlled in function of the pressure prevailing in a chamber limited by the flap in accordance with an escape circuit being opened or closed by an electro-magnet. The inlet of the escape circuit comprises a filter operatively mounted on the flap to be movable therewith, and the passage cross-sections of the escape circuit are greater than the biggest impurities able to pass through the filter.
REFERENCES:
patent: 2417994 (1947-03-01), Sheets
patent: 2459403 (1969-08-01), Royer
patent: 2890714 (1959-06-01), Greenwood
patent: 3346004 (1967-10-01), Costello
patent: 3893475 (1975-07-01), Hudson
Lis Jean Z.
Rosenthal Arnold
Societe Industrielle de Boulogne
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