US3587747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguisher with removable fusible link
Assignee: Individual
•
Filing: 1969-03-07
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Granted: 1971-06-28
•
Expires: 1989-03-07
Abstract
Abstract FIRE EXTINGUISHER OF THE TYPE EMPLOYING A CONTAINER OF PRESSURIZED EXTINGUISHER MATERIAL CHARACTERIZED BY A NORMALLY CLOSED DISCHARGE VALVE WHICH REMAINS ATTACHED TO THE CONTAINER AND A DETACHABLE ELEMENT INCLUDING A SPRING RETAINED IN LOADED CONDITION BY A FUSIBLE LINK AND ADAPTED TO OPEN THE DISCHARGE VALVE UPON MELTING OF THE LINK ONLY WHEN THE DETACHABLE ELEMENT IS OPERATIVELY ASSOCIATED WITH THE DISCHARGE VALVE. DURING SHIPMENT AND OTHER HANDLING PRIOR TO ATTACHMENT OF THE DETACHABLE ELEMENT TO THE CONTAINER AT THE SITUS OF INTENDED USE, IT REMAINS IN NONOPERATIONAL ASSOCIATION TO THUS PREVENT PREMATURE AND UNITENDED OPERATION OF THE DISCHARGE VALVE.
Inventors
- 👤 Max A Romero
- 👤 Conrad S Mikulec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:07
CPC Classifications
A; A62; A62C; A62C13/00; A62C13/003
Claims Analysis
Total Claims: 0
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References 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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |