Patent US2520553A successfully refreshed from Google Patents.
US3264634A
Expired / Lapsed
US
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Dual actuation signal alarm device
Assignee: ASECO Inc
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Filing: 1964-03-02
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Granted: 1966-08-02
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Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Robert H Voigt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:10
CPC Classifications
G; G08; G08B; G08B29/00; G08B29/18; G08B29/183; G08B27/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN AN ALARM SYSTEM HAVING A SOURCE OF ELECTRICAL POWER AND MEANS SELECTIVELY IMPOSING A FIRST AND SECOND PREDETERMINED ACTUATION SIGNAL THEREON, AN ALARM DEVICE COMPRISING (A) AN ALARM CIRCUIT INCLUDING SWITCHING MEANS AND MEANS PRODUCING AN ALARM UPON ACTUATION OF SAID SWITCHING MEANS, (B) MEANS OPERABLY TO ACTUATE SAID SWITCHING MEANS AND INCLUDING A FIRST CONTROL CIRCUIT, A SECOND CONTROL CIRCUIT, AN ACTUATING CIRCUIT AND A CHARGING SOURCE FOR SAID ACTUATING CIRCUIT, (C) SAID ACTUATING CIRCUIT BEING OPERABLE TO ACTUATE SAID SWITCHING MEANS UPON A PREDETERMINED INCREASE IN THE VOLTAGE POTENTIAL ACROSS SAID ACTUATING CIRCUIT, (D) SAID FIRST CONTROL CIRCUIT NORMALLY SHUNTING SAID ACTUATING CIRCUIT WITH RESPECT TO SAID CHARGING SOURCE AND INCLUDING MEANS REMOVING THE SHUNT EFFECT OF SAID FIRST CONTROL CIRCUIT FROM SAID ACTUATING CIRCUIT ONLY UPON RECEIPT OF SAID FIRST ACTUATION SIGNAL,
Claim 2
Dependent Claim
136 words
IN AN ALARM SYSTEM HAVING A SOURCE OF ELECTRICAL POWER AND MEANS SELECTIVELY IMPOSING A FIRST AND SECOND PREDETERMINED ACTUATION SIGNAL THEREON, AN ALARM DEVICE COMPRISING (A) AN ALARM CIRCUIT INCLUDING SWITCHING MEANS AND MEANS PRODUCING AN ALARM UPON ACTUATION OF SAID SWITCHING MEANS, (B) MEANS OPERABLY TO ACTUATE SAID SWITCHING MEANS AND INCLUDING A FIRST CONTROL CIRCUIT, A SECOND CONTROL CIRCUIT, AN ACTUATING CIRCUIT AND A CHARGING SOURCE FOR SAID ACTUATING CIRCUIT, (C) SAID ACTUATING CIRCUIT BEING OPERABLE TO ACTUATE SAID SWITCHING MEANS UPON A PREDETERMINED INCREASE IN THE VOLTAGE POTENTIAL ACROSS SAID ACTUATING CIRCUIT, (D) SAID FIRST CONTROL CIRCUIT NORMALLY SHUNTING SAID ACTUATING CIRCUIT WITH RESPECT TO SAID CHARGING SOURCE AND INCLUDING MEANS REMOVING THE SHUNT EFFECT OF SAID FIRST CONTROL CIRCUIT FROM SAID ACTUATING CIRCUIT ONLY UPON RECEIPT OF SAID FIRST ACTUATION SIGNAL,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |