B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
364/26
B66B 13/24 (2006.01) B66B 13/26 (2006.01)
Patent
CA 2026182
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.
Chang I-Lin
Peelle Henry E. Jr.
Walkowiak Stefan
Macrae & Co.
Peelle Company (the)
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