US3194923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current limiting fuse
Assignee: Westinghouse Electric Corp
•
Filing: 1961-01-30
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Granted: 1965-07-13
•
Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Frank L Cameron
- 👤 Ackermann Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:50
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A FUSE, COMPRISING: A TUBULAR FUSE HOLDER HAVING A PAIR OF SPACED TERMINAL MEANS THEREIN; FUSIBLE CIRCUIT INTERRUPTED MEANS CONNECTED BETWEEN SAID TERMINALS AND COMPRISING A PLURALITY OF SUBSTANTIALLY PARALLEL FUSIBLE CONDUCTORS SPACED FROM ONE ANOTHER; INTERRUPTER MEANS DISPOSED INTERMEDIATE THE ENDS OF SAID FUSIBLE MEANS, SAID INTERRUPTER MEANS INCLUDING A PLURALITY OF SPACED PLATES OF A PREDETERMINED THICKNESS OF GAS EVOLVING MATERIAL, SAID PLATES EACH HAVING A PLURALITY OF SPACED APERTURES EACH PROVIDING AN ARC PRESSURE CHAMBER WITHIN THE INTERRUPTER MEANS, SAID PLATES EACH ENCIRCLING THE FUSIBLE CONDUCTORS AT A PLURALITY OF DIFFERENT SPACED POINTS ALONG THE LENGTH OF THE FUSIBLE CONDUCTORS SO THAT THE ARC FORMED UPON FUSION OF EACH FUSIBLE CONDUCTOR WITHIN THE ASSOCIATED APERTURE IS SUBJECTED TO A LONGITUDINAL GAS BLAST WITHIN EACH APERTURE PROVIDING PRESSURE WITHIN EACH PRESSURE CHAMBER TO MAINTAIN THE ARC VOLTAGE WITHIN EACH APERTURE AT A HIGH VALUE AND TO REMOVE THE CONDUCTING PRODUCTS OF THE ARC TO ESTABLISH AN INSULATING CONDITION; AND A GRANULAR ARCQUENCHING MATERIAL IN PROXIMITY WITH THE PRESSURE CHAMBER MEANS.
Claim 2
Dependent Claim
172 words
A FUSE, COMPRISING: A TUBULAR FUSE HOLDER HAVING A PAIR OF SPACED TERMINAL MEANS THEREIN; FUSIBLE CIRCUIT INTERRUPTED MEANS CONNECTED BETWEEN SAID TERMINALS AND COMPRISING A PLURALITY OF SUBSTANTIALLY PARALLEL FUSIBLE CONDUCTORS SPACED FROM ONE ANOTHER; INTERRUPTER MEANS DISPOSED INTERMEDIATE THE ENDS OF SAID FUSIBLE MEANS, SAID INTERRUPTER MEANS INCLUDING A PLURALITY OF SPACED PLATES OF A PREDETERMINED THICKNESS OF GAS EVOLVING MATERIAL, SAID PLATES EACH HAVING A PLURALITY OF SPACED APERTURES EACH PROVIDING AN ARC PRESSURE CHAMBER WITHIN THE INTERRUPTER MEANS, SAID PLATES EACH ENCIRCLING THE FUSIBLE CONDUCTORS AT A PLURALITY OF DIFFERENT SPACED POINTS ALONG THE LENGTH OF THE FUSIBLE CONDUCTORS SO THAT THE ARC FORMED UPON FUSION OF EACH FUSIBLE CONDUCTOR WITHIN THE ASSOCIATED APERTURE IS SUBJECTED TO A LONGITUDINAL GAS BLAST WITHIN EACH APERTURE PROVIDING PRESSURE WITHIN EACH PRESSURE CHAMBER TO MAINTAIN THE ARC VOLTAGE WITHIN EACH APERTURE AT A HIGH VALUE AND TO REMOVE THE CONDUCTING PRODUCTS OF THE ARC TO ESTABLISH AN INSULATING CONDITION; AND A GRANULAR ARCQUENCHING MATERIAL IN PROXIMITY WITH THE PRESSURE CHAMBER MEANS.
References Cited (Backward Citations)
US988873A
Cited
US1959770A
Cited
US1946553A
Cited
US2209823A
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GB541116A
Cited
US2605371A
Cited
US2682587A
Cited
US2871314A
Cited
US3061700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |