Unlock mechanism for a rotary door operator

Details Unlock mechanism for a rotary door operator Unlock mechanism for a rotary door operator

2007-04-10

2010-02-02

Strimbu, Gregory J. (Department: 3634)

Movable or removable closures

Mounted for multidirectional or oblique movement

Sequential translation and swinging

C049S280000, C049S281000

Reexamination Certificate

active

07654040

ABSTRACT:
An unlock mechanism for a rotary door operator of a transit vehicle includes a pivotally disposed lock member adapted for rotating into an unlock position and activating a valve for discharging the fluid pressure from a drive cylinder to enable a manual opening of the door. A spring is provided for biasing the lock member into a lock position. The lock member may be moved into the unlock position either with a cable or a lever handle.

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