Linear belt door operator

Details Linear belt door operator Linear belt door operator

1995-06-23

1997-12-30

Nappi, Robert

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

187327, 187315, 49116, 49121, B66B 1310, B66B 1314, E05C 706, E05F 1700

Patent

active

057019738

ABSTRACT:
Disclosed is a door operator mounted in a space between a cab fascia and a sill edge plane. A feature of the door operator is a drive unit connected to a drive pulley, the drive unit being mounted in a central portion of the door operator, wherein the drive pulley provides a drive force to a linear transmission element. Another feature of the door operator is a modular mounting plate, wherein the door operator is mounted to the mounting plate, and in turn, the mounting plate is mounted in the space between the cab fascia and the sill edge plane.

REFERENCES:
patent: 1594513 (1926-08-01), Ainsworth
patent: 2899021 (1959-09-01), O'Grady
patent: 3553890 (1971-01-01), Stretton
patent: 3834081 (1974-09-01), Catlett
patent: 4177881 (1979-12-01), Kappenhagen
patent: 5127190 (1992-07-01), Hein et al.
patent: 5247763 (1993-09-01), Hein
patent: 5271181 (1993-12-01), Pietro

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