Control and hydraulic system for a liftcrane

Details Control and hydraulic system for a liftcrane Control and hydraulic system for a liftcrane

1989-10-10

1993-02-23

Smith, Jerry

Boots, shoes, and leggings

364175, 36442407, G05B 1101, G05B 1132

Patent

active

051896052

ABSTRACT:
A control system for a liftcrane powered by a closed loop hydraulic system. In a liftcrane that includes controls by which an operator can run the liftcrane and mechanical subsystems each powered by a closed loop hydraulic system having a pump and an actuator, the present invention provides a controller responsive to the controls and connected to the mechanical subsystems, and further in which the controller is capable of running a routine for controlling said mechanical subsystems to define operation of the liftcrane.

REFERENCES:
patent: 3335568 (1967-08-01), Van De Hey
patent: 3851766 (1974-12-01), Gill et al.
patent: 4178591 (1979-12-01), Geppert
patent: 4185280 (1980-01-01), Wilhelm
patent: 4268013 (1981-05-01), Khan
patent: 4451893 (1984-05-01), Izumi et al.
patent: 4489551 (1984-12-01), Watanabe et al.
patent: 4510740 (1985-04-01), Izumi et al.
patent: 4514796 (1985-04-01), Saulters et al.
patent: 4532595 (1985-07-01), Wilhelm
patent: 4782662 (1988-11-01), Reeves et al.
patent: 4815614 (1989-03-01), Putkonen et al.
patent: 5029067 (1991-07-01), Nishida
The Liebherr "Technical Data Cable Excavator", at p. 3, col. 1, describes a control system for a liftcrane, Oct. 1986.
The Liebherr "Technical Description", (HS 840, HS 850, HS 870) describes liftcranes including the liftcrane described in reference A, Apr. 1985.

Affiliated with

Also associated with

Rating

Control and hydraulic system for a liftcrane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control and hydraulic system for a liftcrane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control and hydraulic system for a liftcrane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2210828