Signal transfer apparatus

Electricity: circuit makers and breakers – Special application – Actuated concurrently with operation or use of art device

Reexamination Certificate

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Details

C200S061700, C070S271000, C070S280000, C340S870030

Reexamination Certificate

active

06953903

ABSTRACT:
A signal transfer assembly supplies a signal to unlock a door by controlling a lock of the door. The signal transfer assembly includes a transfer strip assembly in the door frame for receiving a deactuation signal, for passing the deactuation signal to a transfer tip assembly in the door, and for passing the deactuation signal to the lock to unlock the lock.

REFERENCES:
patent: 3890608 (1975-06-01), Peterson
patent: 5850753 (1998-12-01), Varma
patent: 5925861 (1999-07-01), Fromberg
patent: 5943888 (1999-08-01), Lawson
patent: 6185773 (2001-02-01), Goedde
patent: 6318138 (2001-11-01), Mathews et al.

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