US3354282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal fuse with capillary action
Assignee: General Electric Canada Co
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Filing: 1966-05-25
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Granted: 1967-11-21
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Expires: 1986-05-25
Abstract
No abstract record available.
Inventors
- 👤 Norbert C Batsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:11
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/74; H01H37/76; H01H37/761
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A THERMAL FUSE FOR INTERRUPTING THE CURRENT FLOW IN RESPONSE TO ITS ENVIRONMENTAL TEMPERATURE COMPRISING A SLEEVE, A PAIR OF LEAD TERMINALS EXTENDING FROM SAID SLEEVE FOR CONNECTION IN AN EXTERNAL CIRCUIT, A FUSIBLE LINK DISPOSED WITHIN SAID SLEEVE AND JOINING SAID LEAD TERMINALS, SAID FUSIBLE LINK HAVING A PREDETERMINED MELTING TEMPERATURE RANGE AND FORMING A CURRENT CONDUCTING PATH BETWEEN SAID LEAD TERMINALS, AND HOLLOW CAPILLARY MEANS AT EACH END OF SAID FUSIBLE LINK AND FORMING AN ELECTRICAL CONNECTION BETWEEN SAID LINK AND SAID TERMINALS OVERLAPPING AT LEAST A PORTION WHEREBY UPON INCREASE OF THE ENVIRONMENTAL TEMPERATURE BEYOND THE MELTING POINT OF THE LINK THE MELTED LINK IS WITHDRAWN INTO THE CAPILLARY MEANS TO PERMANENTLY SEVER THE LINK THEREBY ENSURING THAT THE CURRENT FLOW BETWEEN SAID LEAD TERMINALS IS COMPLETELY INTERRUPTED.
Claim 2
Dependent Claim
131 words
A THERMAL FUSE FOR INTERRUPTING THE CURRENT FLOW IN RESPONSE TO ITS ENVIRONMENTAL TEMPERATURE COMPRISING A SLEEVE, A PAIR OF LEAD TERMINALS EXTENDING FROM SAID SLEEVE FOR CONNECTION IN AN EXTERNAL CIRCUIT, A FUSIBLE LINK DISPOSED WITHIN SAID SLEEVE AND JOINING SAID LEAD TERMINALS, SAID FUSIBLE LINK HAVING A PREDETERMINED MELTING TEMPERATURE RANGE AND FORMING A CURRENT CONDUCTING PATH BETWEEN SAID LEAD TERMINALS, AND HOLLOW CAPILLARY MEANS AT EACH END OF SAID FUSIBLE LINK AND FORMING AN ELECTRICAL CONNECTION BETWEEN SAID LINK AND SAID TERMINALS OVERLAPPING AT LEAST A PORTION WHEREBY UPON INCREASE OF THE ENVIRONMENTAL TEMPERATURE BEYOND THE MELTING POINT OF THE LINK THE MELTED LINK IS WITHDRAWN INTO THE CAPILLARY MEANS TO PERMANENTLY SEVER THE LINK THEREBY ENSURING THAT THE CURRENT FLOW BETWEEN SAID LEAD TERMINALS IS COMPLETELY INTERRUPTED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |