Buffer and elevator installation with such a buffer

Details Buffer and elevator installation with such a buffer Buffer and elevator installation with such a buffer

2007-07-31

2007-07-31

Mackey, Patrick (Department: 3654)

Elevator, industrial lift truck, or stationary lift for vehicle

Having means cushioning contact of load support with...

C187S357000

Reexamination Certificate

active

10845532

ABSTRACT:
A buffer supports an elevator car and/or a counterweight for the elevator car, wherein the elevator car and the counterweight are each movable along a respective path in an elevator shaft. The buffer partly projects into the path of the elevator car and the path of the counterweight to produce a mechanical contact with the elevator car when the elevator car moves below a first spacing with respect to a floor of the shaft. The buffer additionally produces a mechanical contact with the counterweight when the counterweight falls below a second spacing with respect to the floor.

REFERENCES:
patent: 5469937 (1995-11-01), Hakala et al.
patent: 5727657 (1998-03-01), Foelix
patent: 5806633 (1998-09-01), Macuga
patent: 6095288 (2000-08-01), Rivera et al.
patent: 6138798 (2000-10-01), Macuga
patent: 6736242 (2004-05-01), Nygren
patent: 7077243 (2006-07-01), Huber et al.
patent: WO 00/64798 (2000-11-01), None

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