US3153226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined smoke and fire alarm
Assignee: Individual
•
Filing: 1961-05-05
•
Granted: 1964-10-13
•
Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
- 👤 John L Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:09
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/06; G08B17/10; G08B17/103; G08B17/11; G08B17/113
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A FIRE AND SMOKE ALARM COMPRISING, IN COMBINATION, AN ALARM DEVICE; AN ACTUATING MEMBER FOR SAID ALARM DEVICE; A RECIPROCABLE SHAFT CONNECTED TO SAID ACTUATING MEMBER; A PUSH ROD; A HEAT-RESPONSIVE ELEMENT DISPOSED BETWEEN, AND OPERATIVELY CONNECTED TO SAID, RECIPROCABLE SHAFT AND SAID PUSH ROD; A SOLENOID INCLUDING AN OPERATING SHAFT ADAPTED TO MOVE SAID PUSH ROD TOWARD SAID HEATEXPANSIBLE MEMBER AND SAID RECIPROCABLE SHAFT; LIGHTSENSITIVE SMOKE DETECTING MEANS; AND MEANS ACTUATED BY SAID SMOKE DETECTING MEANS FOR CONTROLLING SAID SOLENOID.
Claim 2
Dependent Claim
81 words
A FIRE AND SMOKE ALARM COMPRISING, IN COMBINATION, AN ALARM DEVICE; AN ACTUATING MEMBER FOR SAID ALARM DEVICE; A RECIPROCABLE SHAFT CONNECTED TO SAID ACTUATING MEMBER; A PUSH ROD; A HEAT-RESPONSIVE ELEMENT DISPOSED BETWEEN, AND OPERATIVELY CONNECTED TO SAID, RECIPROCABLE SHAFT AND SAID PUSH ROD; A SOLENOID INCLUDING AN OPERATING SHAFT ADAPTED TO MOVE SAID PUSH ROD TOWARD SAID HEATEXPANSIBLE MEMBER AND SAID RECIPROCABLE SHAFT; LIGHTSENSITIVE SMOKE DETECTING MEANS; AND MEANS ACTUATED BY SAID SMOKE DETECTING MEANS FOR CONTROLLING SAID SOLENOID.
References Cited (Backward Citations)
US2582790A
Cited
US2982950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |