Alarm control unit and test circuit therefor
Abstract
Abstract A PROTECTION EQUIPMENT TESTING UNIT FOR CONTEMPORANEOUSLY ASCERTAINING THE OPERABILITY OF A MULTIPLICITY OF PIECES OF PROTECTION EQUIPMENT BOTH FROM WITHIN A PROTECTED PREMISES AND FROM A REMOTELY LOCATED PLACE WHILE TESTING FROM THE REMOTE PLACE. THE PROTECTED PREMISES AND THE REMOTE PLACE ARE ELECTRICALLY CONNECTED BY A CONDUCTIVE LINE. THE CONDUCTIVE LINE IS SELECTIVELY CONNECTED TO A FIRST AND A SECOND SOURCE OF DIRECT CURRENT AT THE REMOTE PLACE. AN INTRUSION SIMULATOR IS LOCATED WITHIN THE PROTECTED PREMISES AND MAY BE ACTIVATED BY AN INDIVIDUAL AT THE REMOTE PLACE. A FIRST ALARM-TEST INDICATOR IS LOCATED WITHIN THE REMOTE PLACE AND A SECOND ALARM-TEST INDICATOR IS LOCATED WITHIN THE PROTECTED PREMISES. BOTH THE FIRST AND SECOND INDICATORS ARE COUPLED TO THE PIECE OF PROTECTION, EQUIPMENT. BY ACTIVATING THE INTRUSION SIMULATOR, THE PIECE OF PROTECTION EQUIPMENT RESPONDS TO THE SIMULATED INTRUSION AND SENDS A SIGNAL TO BOTH OF THE INDICATORS. THIS WILL ALLOW THE PROTECTED PREMISES AND THE REMOTELY LOCATED PLACE TO CONTEMPORANEOUSLY ASCERTAIN WHETHER THE PIECE OF PROTECTIVE EQUIPMENT IS IN ORDER.
Inventors
- 👤 Frederick G Hill
- 👤 Lawrence H Kelly
- 👤 Joseph Li Calsi
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |