US3175207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire and burglar alarm
Assignee: Individual
•
Filing: 1962-07-20
•
Granted: 1965-03-23
•
Expires: 1982-07-20
Abstract
No abstract record available.
Inventors
- 👤 Jr William T Hewitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:06
CPC Classifications
G; G08; G08B; G08B23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A FIRE AND BURGLAR ALARM COMPRISING A CASING CONTAINING BATTERY MEANS IN CIRCUIT WITH AN ELECTRICAL AUDIBLE MEMBER, AND A SWITCH MOUNTED EXTERNALLY ON THE CASING, SAID SWITCH BEING IN CIRCUIT WITH THE BATTERY MEANS AND THE AUDIBLE MEMBER, SAID SWITCH COMPRISING A U-SHAPED YOKE HAVING A CROSS MEMBER AND SPACED LEGS EXTENDING FROM THE CROSS MEMBER, SAID CROSS MEMBER BEING ROTATABLY MOUNTED ON THE CASING, A DIELECTRIC HOUSING POSITIONED BETWEEN SAID LEGS AND PIVOTED TO THE LEGS, SAID HOUSING HAVING AN INNER END WALL CARRYING A CONTACT AND AN OUTER END WALL FORMED WITH A CENTRAL OPENING, A ROD WORKING THROUGH SAID OPENING AND HAVING AN ENLARGED DIAMETER CONTRACTOR ON ITS INNER END OPPOSED TO SAID CONTACT, AND A COIL SPRING CIRCUMPOSED ON THE ROD AND COMPRESSED BETWEEN THE OUTER END WALL OF THE HOUSING AND SAID CONTACTOR, AND A CORD SECURED TO THE OUTER END OF SAID ROD.
Claim 2
Dependent Claim
150 words
A FIRE AND BURGLAR ALARM COMPRISING A CASING CONTAINING BATTERY MEANS IN CIRCUIT WITH AN ELECTRICAL AUDIBLE MEMBER, AND A SWITCH MOUNTED EXTERNALLY ON THE CASING, SAID SWITCH BEING IN CIRCUIT WITH THE BATTERY MEANS AND THE AUDIBLE MEMBER, SAID SWITCH COMPRISING A U-SHAPED YOKE HAVING A CROSS MEMBER AND SPACED LEGS EXTENDING FROM THE CROSS MEMBER, SAID CROSS MEMBER BEING ROTATABLY MOUNTED ON THE CASING, A DIELECTRIC HOUSING POSITIONED BETWEEN SAID LEGS AND PIVOTED TO THE LEGS, SAID HOUSING HAVING AN INNER END WALL CARRYING A CONTACT AND AN OUTER END WALL FORMED WITH A CENTRAL OPENING, A ROD WORKING THROUGH SAID OPENING AND HAVING AN ENLARGED DIAMETER CONTRACTOR ON ITS INNER END OPPOSED TO SAID CONTACT, AND A COIL SPRING CIRCUMPOSED ON THE ROD AND COMPRESSED BETWEEN THE OUTER END WALL OF THE HOUSING AND SAID CONTACTOR, AND A CORD SECURED TO THE OUTER END OF SAID ROD.
References Cited (Backward Citations)
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Cited
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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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |