Elevator inspection safety devices

Elevator – industrial lift truck – or stationary lift for vehicle – With barrier for regulating access to load support – Includes motor or motor driven linkage for shifting barrier

Reexamination Certificate

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Details

C187S401000, C187S277000, C187S414000, C182S019000, C182S113000, C182S148000

Reexamination Certificate

active

10571342

ABSTRACT:
An elevator car includes a cross-head portion and a balustrade mounted to the cross-head portion. The balustrade is moveable from a retracted position for normal operation of the car to a deployed position for inspection operation of the car. The car further includes a second retractable safety device also mounted to the cross-head for preventing or limiting movement of the car. The balustrade includes at least one control for operating the elevator car during the inspection operation, the control being arranged so that the control cannot be operated when the balustrade is in the retracted position.

REFERENCES:
patent: 3648720 (1972-03-01), Kornahrens
patent: 4467888 (1984-08-01), Hickling
patent: 6481534 (2002-11-01), Malone, Jr.
patent: 6543584 (2003-04-01), Miyakoshi et al.
patent: 2005/0217939 (2005-10-01), Nielsen et al.
patent: 2005/0252726 (2005-11-01), Det et al.
patent: 1174381 (2002-01-01), None
patent: 2158038 (1985-11-01), None
patent: 02291377 (1990-12-01), None
patent: 2002096979 (2002-04-01), None
PCT International Search Report for PCT/IB03/03960, dated May 21, 2004.
International Preliminary Examination Report for PCT/IB03/03960, dated Jan. 13, 2006.
Written Opinion for PCT/IB03/03960, dated Sep. 20, 2005.
Response to Written Opinion dated Dec. 22, 2005.

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