Device for the control of a double-acting hydraulic jack

Details Device for the control of a double-acting hydraulic jack Device for the control of a double-acting hydraulic jack

1991-04-26

1992-08-11

Look, Edward K.

Motors: expansible chamber type

With motive fluid valve

Contracting chamber exhaust valve controlled by expanding...

91422, 91433, F15B 1108, F15B 1304

Patent

active

051369290

ABSTRACT:
A device for the control of a double-acting hydraulic jack (10) comprises in a main circuit, a distributor assembly (28, 28', 34, 34') electrically controlled and commanding the putting of each of the two chambers (14, 16) of the jack selectively in relation with a source of fluid under high pressure (20, 26) or with a reservoir of fluid at low pressure (24), and an auxiliary circuit controlled by a mechanism (76) sensitive to the position of the piston (12) of the jack (10). The auxiliary circuit comprises a slide distributor (50) which ensures the return of the piston (12) of the jack (10) into a rest position in the event of a failure of the electrical control mechanism by governing the distributor assembly (34, 34') of the main circuit.

REFERENCES:
patent: 2241077 (1941-05-01), Thoma
patent: 2352470 (1944-06-01), Carlton
patent: 3164064 (1965-01-01), Carson
patent: 4085587 (1978-04-01), Garlinghouse
patent: 4953445 (1990-09-01), Kervagoret et al.

Affiliated with

Also associated with

Rating

Device for the control of a double-acting hydraulic jack does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for the control of a double-acting hydraulic jack, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for the control of a double-acting hydraulic jack will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-340081