US3148365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual signal alarm device responsive to high frequency signals superimposed on a power line
Assignee: ASECO Inc
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Filing: 1962-03-12
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Granted: 1964-09-08
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Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Robert H Voigt
- 👤 William C Newberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:48
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN AN ALARM SYSTEM HAVING A SOURCE OF ELECTRICAL POWER AND MEANS SELECTIVELY IMPOSING A PREDETERMINED ACTUATION SIGNAL THEREON, A DUAL SIGNAL ALARM DEVICE COMPRISING, (A) A FIRST ALARM CIRCUIT INCLUDING A SWITCH AND MEANS PRODUCING AN AUDIBLE ALARM UPON ACTUATION OF SAID SWITCH, (B) MEANS ACTUATING SAID SWITCH AND INCLUDING AN ENERGIZING CIRCUIT, (C) SAID ENERGIZING CIRCUIT BEING OPERABLE TO ACTUATE SAID SWITCH UPON RECEIPT OF SAID PREDETERMINED ACTUATION SIGNAL, (D) A SECOND ALARM CIRCUIT INCLUDING A SECOND SWITCH AND MEANS PRODUCING AN ALARM AUDIBLY DISTINGUISHABLE FROM SAID FIRST MENTIONED ALARM UPON ACTUATION OF SAID SECOND SWITCH, (E) MEANS ACTUATING SAID SECOND MENTIONED SWITCH AND INCLUDING AN ENERGIZING CIRCUIT AND A HEAT RESPONSIVE ELEMENT, (F) SAID HEAT RESPONSIVE ELEMENT BEING OPERABLE TO ACTUATE SAID SECOND MENTIONED SWITCH UPON BEING HEATED TO A PREDETERMINED TEMPERATURE.
Claim 2
Dependent Claim
135 words
IN AN ALARM SYSTEM HAVING A SOURCE OF ELECTRICAL POWER AND MEANS SELECTIVELY IMPOSING A PREDETERMINED ACTUATION SIGNAL THEREON, A DUAL SIGNAL ALARM DEVICE COMPRISING, (A) A FIRST ALARM CIRCUIT INCLUDING A SWITCH AND MEANS PRODUCING AN AUDIBLE ALARM UPON ACTUATION OF SAID SWITCH, (B) MEANS ACTUATING SAID SWITCH AND INCLUDING AN ENERGIZING CIRCUIT, (C) SAID ENERGIZING CIRCUIT BEING OPERABLE TO ACTUATE SAID SWITCH UPON RECEIPT OF SAID PREDETERMINED ACTUATION SIGNAL, (D) A SECOND ALARM CIRCUIT INCLUDING A SECOND SWITCH AND MEANS PRODUCING AN ALARM AUDIBLY DISTINGUISHABLE FROM SAID FIRST MENTIONED ALARM UPON ACTUATION OF SAID SECOND SWITCH, (E) MEANS ACTUATING SAID SECOND MENTIONED SWITCH AND INCLUDING AN ENERGIZING CIRCUIT AND A HEAT RESPONSIVE ELEMENT, (F) SAID HEAT RESPONSIVE ELEMENT BEING OPERABLE TO ACTUATE SAID SECOND MENTIONED SWITCH UPON BEING HEATED TO A PREDETERMINED TEMPERATURE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |