Car gate reversing edge

Details Car gate reversing edge Car gate reversing edge

1990-01-22

1991-01-15

Skaggs, H. Grant

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 51, 187 52R, 187104, 49 25, B66B 1324

Patent

active

049846582

ABSTRACT:
The invention provides a scanning beam along the forward edge of an elevator car closure which leads the edge a predetermined distance to provide sufficient time when an object interrupts the beam to stop or reverse the closure and which retracts relative to the closure during final closing movement to dwell adjacent the line at which the closure forward edge closes.

REFERENCES:
patent: 1142405 (1915-06-01), Derry
patent: 4621452 (1986-11-01), Deeg
patent: 4794248 (1988-12-01), Gray

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