High damping pneumatic isolator

Details High damping pneumatic isolator High damping pneumatic isolator

1997-04-16

1999-07-06

Young, Lee W.

Spring devices

Vehicle

Comprising compressible fluid

267121, F16F 904

Patent

active

059188626

ABSTRACT:
A pneumatic isolator supports a payload and dampens the vertical and/or horizontal motion of the payload. The isolator has an air chamber and a damping chamber. A viscous medium is disposed in the damping chamber. A gimbal piston head is flexibly secured to the isolator and a piston well extends downwardly from the piston head and is immersed in the viscous medium. A support rod supports the payload, passes through and is supported by the piston well. The outer surface of the piston well is spaced apart from the opposed surface of the damping chamber and defines a gap therebetween. When horizontal and/or vertical motion acts on the isolator, the piston well moves displacing the viscous medium in the gap resulting in a damping force which is generally proportional and opposite to the velocity of the piston well moving against the viscous medium.

REFERENCES:
patent: 2056106 (1936-09-01), Kuhn
patent: 4360184 (1982-11-01), Reid, III
patent: 4848524 (1989-07-01), Hosan et al.
patent: 5071108 (1991-12-01), Houghton, Jr.
patent: 5186439 (1993-02-01), McDonagh et al.
patent: 5379980 (1995-01-01), Houghton, Jr. et al.
patent: 5433302 (1995-07-01), Heide

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