Suspension system

Details Suspension system Suspension system

1984-04-20

1987-02-24

Garrett, Robert E.

Supports

Brackets

Adjustable

2481231, 2482921, F16M 1112

Patent

active

046451560

ABSTRACT:
An apparatus for counterbalancing the weight of an object in the gravitational field includes a piston in a cylinder with one end exposed to atmospheric pressure and the other end exposed to a pressure below atmospheric. The pressure drop across the piston remains substantially unchanged as piston moves between two pistons; therefore, the piston is subject to a substantially unchanged force. A mechanism is provided to apply the substantially unchanging force against a swingable support member through a variable moment arm.

REFERENCES:
patent: 463382 (1891-11-01), Flagg
patent: 2225515 (1940-12-01), Wood
patent: 2998244 (1961-08-01), Francis
patent: 3037763 (1962-06-01), Steinhagen
patent: 3917200 (1975-11-01), Johnson
patent: 4000873 (1977-01-01), Wallace
patent: 4043251 (1977-08-01), Ohmi

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