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US3194923A Expired / Lapsed US ⏱️ 0.0 years remaining

Current limiting fuse

Assignee: Westinghouse Electric Corp
•
Filing: 1961-01-30
•
Granted: 1965-07-13
•
Expires: 1981-01-30
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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 Cited
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

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