Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1986-12-12
1988-06-28
Orsino, Jr., Joseph A.
Communications: electrical
Condition responsive indicating system
Specific condition
340541, G08B 1308
Patent
active
047542632
ABSTRACT:
An alarm system for sensing entry through premise doors and windows, including primary and secondary circuits joined by a transformer. The primary circuit has an alarm including a siren and floodlight plus a time delay relay (with automatic reset) for activating the alarm for preset periods. A siren delay tube permits siren on-off operation in preset cycles. The secondary contains a plurality of automatic resetting door and window switches. A solenoid operated trigger switch has switch contacts wired to energize the time delay relay whereby the trigger switch solenoid is wired in the secondary for actuation by any door or window switch. A rocker switch in the primary selectively energizes the floodlight without activating the siren and selectively deactivates primary power to the transformer in coaction with time delay relay when the siren and floodlight are activated thus deactivating secondary power to the doors and windows.
The system has a switch box containing a main toggle switch for deactivating the system for repair purposes plus a switchbox door operated microswitch enabling opening of the premise doors and windows without energizing the alarm once the switch box door is opened. Pilot lights are provided for indicating floodlight actuation, and for indicating when the alarm system main power is on. Test switches are wired into the system for testing the alarm system without activating the alarm and for testing the alarm system in place of premise door and window switch activation. Instant entry sensing with minute closure opening is provided.
REFERENCES:
patent: 3383674 (1968-05-01), Soltau et al.
patent: 3537094 (1970-10-01), Hawkins et al.
patent: 3634846 (1972-01-01), Fogiel
patent: 3790944 (1974-02-01), Yarwood
patent: 3978467 (1976-08-01), Albert
Hofsass Jeffrey A.
Orsino Jr. Joseph A.
Rust Charles R.
Walling Richard R.
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