Telescoping elevator door system

Details Telescoping elevator door system Telescoping elevator door system

1994-09-16

1996-12-17

Noland, Kenneth

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

187330, B66B 1312

Patent

active

055843654

ABSTRACT:
A telescoping elevator door apparatus for an elevator having a car for travel in a hoistway is provided. The door apparatus comprises a fast elevator door, a slow elevator door, a first drive, and a second drive. The fast and slow doors are positioned to operate between the car and a landing in the hoistway. In a first embodiment, the first drive selectively drives the fast elevator door open or closed and the second drive selectively drives the slow elevator door open or closed.

REFERENCES:
patent: 1966182 (1934-07-01), McCormick
patent: 2235380 (1941-03-01), McCormick
patent: 4781270 (1988-11-01), Holland
patent: 4947964 (1990-08-01), Husmann
patent: 5265702 (1993-11-01), Garrido et al.
patent: 5323876 (1994-06-01), McAllister et al.

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