US3287525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terminal means for fusible element of current limiting fuse
Assignee: McGraw Edison Co
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Filing: 1965-02-26
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Granted: 1966-11-22
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Expires: 1985-02-26
Abstract
No abstract record available.
Inventors
- 👤 Harvey W Mikulecky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:25
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A HIGH AMPERAGE CURRENT LIMITING FUSE, A TUBULAR INSULATING CASING, AN INERT GRANULAR MATERIAL OF HIGH DIELECTRIC STRENGTH WITHIN SAID CASING, AN INSULATING SPIDER EXTENDING PARALLEL TO THE AXIS OF SAID CASING AND EMBEDDED IN SAID INERT GRANULAR MATERIAL AND HAVING PERIPHERALLY SPACED APART, RADIALLY PROTRUDING PORTIONS EXTENDING LONGITUDINALLY THEREOF, A PLURALITY OF SILVER RIBBONS HELICALLY WOUND IN PARALLEL SPACED APART RELATIONON SAID RADIALLY PROTRUDING PORTIONS OF SAID SPIDER AND BEING EMBEDDED IN SAID GRANULAR INERT MATERIAL, AND A METALLIC TERMINAL ON EACH END OF SAID CASING, SAID METALLIC TERMINALS EACH INCLUDING A PORTION EXTENDING AXIALLY WITH RESPECT TO SAID CASING AND ENGAGING SAID RIBBONS, SAID RIBBONS ENGAGING AND ELECTRICALLY CONNECTED TO SAID AXIAL-
Claim 2
Dependent Claim
115 words
IN A HIGH AMPERAGE CURRENT LIMITING FUSE, A TUBULAR INSULATING CASING, AN INERT GRANULAR MATERIAL OF HIGH DIELECTRIC STRENGTH WITHIN SAID CASING, AN INSULATING SPIDER EXTENDING PARALLEL TO THE AXIS OF SAID CASING AND EMBEDDED IN SAID INERT GRANULAR MATERIAL AND HAVING PERIPHERALLY SPACED APART, RADIALLY PROTRUDING PORTIONS EXTENDING LONGITUDINALLY THEREOF, A PLURALITY OF SILVER RIBBONS HELICALLY WOUND IN PARALLEL SPACED APART RELATIONON SAID RADIALLY PROTRUDING PORTIONS OF SAID SPIDER AND BEING EMBEDDED IN SAID GRANULAR INERT MATERIAL, AND A METALLIC TERMINAL ON EACH END OF SAID CASING, SAID METALLIC TERMINALS EACH INCLUDING A PORTION EXTENDING AXIALLY WITH RESPECT TO SAID CASING AND ENGAGING SAID RIBBONS, SAID RIBBONS ENGAGING AND ELECTRICALLY CONNECTED TO SAID AXIAL-
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |