Device for regulating pressure fluid cylinders

Details Device for regulating pressure fluid cylinders Device for regulating pressure fluid cylinders

1986-09-10

1988-09-20

Garrett, Robert E.

Motors: expansible chamber type

Moving cylinder

Cylinder and piston have relative reciprocation on fixed axis

91390, 91433, F15B 1316

Patent

active

047716746

ABSTRACT:
A method and device for adjusting pressure fluid cylinders, the fluid being a compressible gas such as air and the cylinder being double-acting and receiving a piston (2). A force transmitting means (12, 20, 24) sensing the load of a cylinder generates a signal corresponding to the size of the load which signal is led to a pressure regulating means (17) adjusting the pressure in the cylinder (1) in dependence of the signal so that this will balance a force acting on the piston rod (3). The load-carrying piston (2) is then positioned in a stationary position relative to the cylinder (1).

REFERENCES:
patent: 3028175 (1962-04-01), Eckman
patent: 3060963 (1962-10-01), Jackson et al.
patent: 3401601 (1968-09-01), Velicer
patent: 3807277 (1974-04-01), LaSpisa et al.
patent: 3946559 (1976-03-01), Stevenson
patent: 4215851 (1980-08-01), Holmen
patent: 4326448 (1982-04-01), Lejon
patent: 4463658 (1984-08-01), Heiser et al.

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