Control method

Details Control method Control method

1978-06-16

1980-07-01

Song, Robert R.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

91 1, 91447, 92 5R, 371 14, B66B 516

Patent

active

042102286

ABSTRACT:
A method of temporarily maintaining the position of a hydraulically, pneumatically or electrically driven drive apparatus by sensing the movement of the drive apparatus and then supporting the drive apparatus by the components to be controlled.

REFERENCES:
patent: 1727432 (1929-09-01), Hymans
patent: 1738215 (1929-12-01), Thurston et al.
patent: 3464319 (1969-09-01), Sherman et al.
patent: 3810119 (1974-05-01), Ziene et al.
patent: 3813990 (1974-06-01), Coppola et al.
patent: 3890493 (1975-06-01), Burtness et al.

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