Elevator dampening system

Details Elevator dampening system Elevator dampening system

2007-12-25

2007-12-25

Crawford, Gene O. (Department: 3654)

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific load support drive-means or its control

Includes gear on support mating with stationary rack or chain

C187S272000

Reexamination Certificate

active

10760751

ABSTRACT:
A dampening device for use with elevator cars or similar devices prevents damage to objects or persons within the elevator car upon failure of a drive chain. A hydraulic motor regulates the rate of descent. The dampening motor is monitored constantly using a pressure gauge.

REFERENCES:
patent: 105177 (1870-07-01), Copeland
patent: 205537 (1878-07-01), Garrison
patent: 236184 (1881-01-01), Schmidt
patent: 527894 (1894-10-01), Smith
patent: 3415343 (1968-12-01), Svensson
patent: 3924710 (1975-12-01), Shohet
patent: 3967703 (1976-07-01), Martin
patent: 4046226 (1977-09-01), Flinchbaugh
patent: 4095681 (1978-06-01), David
patent: 4262777 (1981-04-01), Christopher
patent: 4317505 (1982-03-01), Schneider
patent: 4658934 (1987-04-01), Cooper et al.
patent: 4807724 (1989-02-01), Martin
patent: 5499694 (1996-03-01), Dorn
patent: 5558181 (1996-09-01), Bundo
patent: 5906252 (1999-05-01), Wang
patent: 6138799 (2000-10-01), Schroder-Brumloop et al.
patent: 6460657 (2002-10-01), Isenberg et al.
patent: 6830132 (2004-12-01), Kang et al.

Affiliated with

Also associated with

Rating

Elevator dampening system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3869702