Method to adjust and/or indicate a liquid or gaseous pressure, a

Details Method to adjust and/or indicate a liquid or gaseous pressure, a Method to adjust and/or indicate a liquid or gaseous pressure, a

1980-05-28

1983-08-30

Maslousky, Paul E.

Motors: expansible chamber type

Working member position responsive motive fluid control

Venting expanding chamber

91402, 91417R, 92129, 92138, 92130R, 251 58, F15B 1522, F15B 1517, F01B 900

Patent

active

044010117

ABSTRACT:
A method for adjustment and/or indication of a liquid or gaseous pressure, and advice for utilization of the method, including the use of a piston member (7, 7'), movably arranged in a surrounding housing (1), said member having two towards each other acting piston areas with different area, said piston areas being made subject to a pressure from the liquid or gaseous medium, a mechanical load also being supplied to the smaller piston area, whereby the piston surfaces only perform a common movement when the media pressure exceeds a predetermined limiting value, which limiting value comprises of resulting force for the force developed by the smaller piston area under influence of supplied media pressure and added mechanical force, said movement, when predetermined limiting value is exceeded, being arranged to influence a flow restricting valve member and/or indicate the pressure of supplied media.

REFERENCES:
patent: 140156 (1873-06-01), Olsson
patent: 474064 (1892-05-01), Piccard
patent: 536255 (1895-03-01), Baldwin
patent: 537273 (1895-04-01), Carlmon
patent: 728651 (1903-05-01), Albright
patent: 1585529 (1920-05-01), Boving

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