US3119913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time delay thermal fuse for protection of electrical devices from overheating
Assignee: General Electric Co
•
Filing: 1960-10-03
•
Granted: 1964-01-28
•
Expires: 1980-10-03
Abstract
No abstract record available.
Inventors
- 👤 George B Benander
- 👤 Gustaf R Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:59
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/74; H01H37/76; H01H37/761; H02; H02H; H02H5/00; H02H5/04; H02H5/047; H01H2037/768
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A THERMAL FUSE FOR INTERRUPTING A CURRENT FLOW IN AN AN ELECTRICAL LEAD IN RESPONSE TO ITS ENVIRONMENTAL TEMPERATURE COMPRISING A TUBULAR FUSIBLE LINK PROVIDING A CURRENT CONCLUCTION PATH CAPABLE OF HANDLING OVERHEAD CURRENT IN THE ELECTRICAL LEAD AND HAVING A PREDETERMINED TIALLY COVERING SAID TUBULAR FUSIBLE LINK AND PROVIDING SUFFICIENT THERMAL INSULATION TO PERMIT SAID THERMAL FUSE TO WITHSTAND TEMPERATURES ABOVE THE PREDETERMINED MELTING TEMPERATURE RANGE OF SAID FUSIBLE LINK FOR A RELATIVELY SHORT INTERVAL OF TIME, SAID TUBULAR FUSIBLE LINK PROVIDING A CAVITY SUFFICIENT IN VOLUME TO PERMIT SAID FUSIBLE LINK WHEN HEATED TO SAID PREDETERMINED MELTING TEMPERATURE RANGE TO COLLAPSE AND INERRUPT THE CURRENT CONDUCTION PATH IN RESPONSE TO THE ENVIRONMENTAL TEMPERATURE.
Claim 2
Dependent Claim
115 words
A THERMAL FUSE FOR INTERRUPTING A CURRENT FLOW IN AN AN ELECTRICAL LEAD IN RESPONSE TO ITS ENVIRONMENTAL TEMPERATURE COMPRISING A TUBULAR FUSIBLE LINK PROVIDING A CURRENT CONCLUCTION PATH CAPABLE OF HANDLING OVERHEAD CURRENT IN THE ELECTRICAL LEAD AND HAVING A PREDETERMINED TIALLY COVERING SAID TUBULAR FUSIBLE LINK AND PROVIDING SUFFICIENT THERMAL INSULATION TO PERMIT SAID THERMAL FUSE TO WITHSTAND TEMPERATURES ABOVE THE PREDETERMINED MELTING TEMPERATURE RANGE OF SAID FUSIBLE LINK FOR A RELATIVELY SHORT INTERVAL OF TIME, SAID TUBULAR FUSIBLE LINK PROVIDING A CAVITY SUFFICIENT IN VOLUME TO PERMIT SAID FUSIBLE LINK WHEN HEATED TO SAID PREDETERMINED MELTING TEMPERATURE RANGE TO COLLAPSE AND INERRUPT THE CURRENT CONDUCTION PATH IN RESPONSE TO THE ENVIRONMENTAL TEMPERATURE.
References Cited (Backward Citations)
US876984A
Cited
US931478A
Cited
US1192879A
Cited
US1221275A
Cited
US1530264A
Cited
GB507334A
Cited
US2326031A
Cited
US2411460A
Cited
GB637961A
Cited
US2645690A
Cited
US2782283A
Cited
DE1035749B
Cited
US2830156A
Cited
US2971129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |