Fail safe/fail secure lock with quick change access window

Details Fail safe/fail secure lock with quick change access window Fail safe/fail secure lock with quick change access window

2007-07-24

2007-07-24

Estremsky, Gary (Department: 3676)

Closure fasteners

Bolts

Sliding

C292S337000

Reexamination Certificate

active

11089170

ABSTRACT:
An electric door lock interchangeable between fail safe and fail secure modes comprising a housing for receiving a plurality of internal components of the door lock. A window is included in the housing, the window allowing access to the internal components to change the operation of the lock between fail safe an fail secure modes.

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