Positional control

Details Positional control Positional control

1974-03-11

1976-03-23

Schaefer, Robert K.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

B66B 150

Patent

active

039454703

ABSTRACT:
Control apparatus having particular application to the control of the deceleration of an elevator or lift car in approach of a stop position, the apparatus including a sense coil mounted on the lift car and a magnetic member mounted on the lift shaft to vary the flux through the sensing coil in a predetermined manner relative to the distance to go to the stop position, the deceleration being controlled in accordance with the voltage induced by the flux in the sense coil. A magnetically operated switch is also provided on the lift car to respond to the magnitude of the flux to provide a stop signal defining the stop position.

REFERENCES:
patent: 2805735 (1957-09-01), Kramer
patent: 3199630 (1965-08-01), Engel et al.
patent: 3207265 (1965-09-01), Lund et al.
patent: 3261427 (1966-07-01), Morris

Affiliated with

Also associated with

Rating

Positional control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Positional control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Positional control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1638033