Locking device operative with sequence of electric signals

Details Locking device operative with sequence of electric signals Locking device operative with sequence of electric signals

1989-10-18

1991-10-15

Demeo, Palmer C.

Communications: electrical

Continuously variable indicating

With meter reading

70277, E05B 4700

Patent

active

050578308

ABSTRACT:
A locking device on doors is provided with inner and outer escutcheons (2, 3) and having a lock (5) which is arranged between the two escutcheons to permit actuation from the inside and outside. In order to obtain a substantial advantage by remote inquiry of the locking condition and/or storage of locking conditions which have taken place, the locking device has a simple construction, including at least one switch disk (19, 19a) which is entrained upon the actuation of the lock and contact or switch (S1, S2) associated with the switch disk in order to produce electric recording signals concerning an actuation of the lock and/or inside and outside interrogation takes place.

REFERENCES:
patent: 4802353 (1989-02-01), Corder et al.
patent: 4831374 (1989-05-01), Massel
patent: 4833465 (1989-05-01), Abend et al.

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