Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1987-03-19
1988-09-20
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
70434, 70DIG49, 109 38, 340540, 340545, G08B 1300, G08B 2100
Patent
active
047728779
ABSTRACT:
This disclosure teaches a battery powered security indicating device which ttaches to the drawer of a safe. Sensors send drawer position and combination dial rotation signals to a microprocessor which in turn provides audio and or visual indication to the operator indicating when the drawer is open, when it is properly closed and when it is improperly locked.
REFERENCES:
patent: 2923928 (1956-05-01), McLaughlin
patent: 3056125 (1962-09-01), Harry
patent: 3559593 (1971-02-01), Monton et al.
patent: 3643249 (1972-02-01), Haywood
patent: 3785187 (1974-01-01), Wolz
patent: 4453390 (1984-06-01), Moritz et al.
patent: 4455552 (1984-06-01), Greiner et al.
Drescher Gregory H.
McDowell Vaughn P.
Rice, Jr. Thomas J.
Thomson John R.
Goshorn Elmer E.
Lewis John D.
Swann III Glen R.
The United States of America as represented by the Secretary of
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