Building elevator

Details Building elevator Building elevator

2005-06-28

2005-06-28

Salata, Jonathan (Department: 2837)

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

C187S289000

Reexamination Certificate

active

06910553

ABSTRACT:
A building elevator with an elevator mast and an elevator car with at least one electric drive motor for the elevator car for moving the same along the elevator mast. A novel overload-prevention device for the building elevator has two drive motors with the device intended for adding the forces occurring in the abutments of the drive motors and connected to a limit switch.

REFERENCES:
patent: 4304337 (1981-12-01), Dummer
patent: 4698565 (1987-10-01), Behnke et al.
patent: 4919236 (1990-04-01), Karlsson et al.
patent: 4953053 (1990-08-01), Pratt
patent: 5329468 (1994-07-01), Tsukahara et al.
patent: 5352965 (1994-10-01), Kawabata
patent: 5422550 (1995-06-01), McClanahan et al.
patent: 5428470 (1995-06-01), Labriola
patent: 5555952 (1996-09-01), van Mol et al.
patent: 5638387 (1997-06-01), Palleggi

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