Tested and redundant elevator emergency terminal stopping capabi

Details Tested and redundant elevator emergency terminal stopping capabi Tested and redundant elevator emergency terminal stopping capabi

1993-04-28

1995-04-18

Stephan, Steven L.

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific load support drive-means or its control

Includes control for power source of drive-means

187394, 187287, B66B 500

Patent

active

054070287

ABSTRACT:
The main relay that controls power to an elevator motor and brake lift coil is dropped by an electronic emergency stop relay contact placed in series with the elevator safety chain in the event that the speed and position indications in the elevator controller do not agree with the indications of the emergency terminal stopping speed and zone relays, or if the elevator controller indicates the elevator is going too fast when within the emergency terminal stopping zone. Various parts of the safety chain are cycled off when the elevator is at a landing in order to check the safety circuits and main power relays.

REFERENCES:
patent: 3379285 (1968-04-01), Leitz
patent: 3587785 (1971-06-01), Krauer
patent: 4067416 (1978-01-01), Lowry
patent: 4114731 (1978-09-01), Faup et al.
patent: 4161236 (1979-07-01), Husson
patent: 4363381 (1982-12-01), Bittar
patent: 4898263 (1990-02-01), Manske et al.
patent: 5070967 (1991-12-01), Katzy et al.
patent: 5107964 (1992-04-01), Coste et al.
patent: 5202540 (1993-04-01), Auer et al.

Affiliated with

Also associated with

Rating

Tested and redundant elevator emergency terminal stopping capabi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tested and redundant elevator emergency terminal stopping capabi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tested and redundant elevator emergency terminal stopping capabi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-62126