Floyd L. Foreman - Houston TX Emmet D. Fenton - Irving TX
International Classification:
B66B 1300
US Classification:
187 56
Abstract:
A duplex door safety recycling system, primarily for elevator doors, that includes a clutch mounted safety switch for activating an electrical control circuit to recycle and open the duplex doors when an external force is applied to a clutch-driven door in opposition to the force moving the door in the direction of closing.
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