Motors: expansible chamber type – Working member position responsive motive fluid control – Working member carries part within working chamber which...
Patent
1979-07-16
1981-10-27
Maslousky, Paul E.
Motors: expansible chamber type
Working member position responsive motive fluid control
Working member carries part within working chamber which...
91 26, 277218, F15B 1522
Patent
active
042966752
ABSTRACT:
A fluid pressure actuator consisting of piston structure reciprocal within a cylinder pressurized through ports at the cylinder ends wherein cushioning means is mounted upon the piston structure controlling the flow of fluid through the ports producing controlled piston deceleration at the termination of its stroke. The port utilizes sealing means in the form of a radially expandable and contractable sealing ring floatably mounted to permit limited radial and axial movement. The seal ring closely engages, in a telescoping manner, the outer cylindrical surface of a valve member mounted upon the piston structure wherein a very accurate and effective seal occurs between the ring and valve member, and bleeding of the cylinder chamber being exhausted can be accurately regulated by predetermined flow control apparatus such as slots, orifices or adjustable needle valves. The seal ring is radially split or flexible having a normal inner diameter slightly less than the outer diameter of the valve member wherein the ring inner diameter will automatically be reduced as wear occurs between the seal ring and valve member, and dimensional variations due to wear are automatically compensated.
REFERENCES:
patent: Re24532 (1958-09-01), Halladay et al.
patent: 1963725 (1934-06-01), Teetor
patent: 1999466 (1935-04-01), Leonard
patent: 2493602 (1950-01-01), Sterrett
patent: 2591920 (1952-04-01), Colvin
patent: 2970023 (1961-01-01), Thompson
patent: 3440930 (1969-04-01), Olson
patent: 3677141 (1972-07-01), Lagerquist
Aeroquip Corporation
Maslousky Paul E.
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