US3076114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark gap devices
Assignee: E M P Electric Ltd
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Filing: 1961-01-24
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Granted: 1963-01-29
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Expires: 1981-01-24
Abstract
No abstract record available.
Inventors
- 👤 Hicks Bruce Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:50
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/02; H01T1/04; H01T1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A SPARK GAP UNIT FOR A SURGE DIVERTER OR LIGHTNING ARRESTER COMPRISING A PLURALITY OF HEAT-RESISTING INSULATING DISCS ASSEMBLED IN MUTUAL CONTACT, EACH DISC HAVING A DEPRESSION OF SINUOUS PERIPHERAL FORM ON ONE FACE, PAIRS OF SAID DISCS BEING PLACED WITH SAID DEPRESSIONS FACING ONE ANOTHER TO FORM A SHALLOW ELECTRODE CHAMBER OF SINUOUS PERIPHERAL FORM, OPPOSED PAIRS OF SPARK GAP ELECTRODES IN EACH ELECTRODE CHAMBER AND FLAT PERMANENT MAGNETS DISPOSED ON THE FACES OF SAID DISCS OPPOSITE TO SAID DEPRESSIONS RESPECTIVELY, SAID MAGNETS BEING OPPOSITELY POLARIZED ON OPPOSITE FACES.
Claim 2
Dependent Claim
90 words
A SPARK GAP UNIT FOR A SURGE DIVERTER OR LIGHTNING ARRESTER COMPRISING A PLURALITY OF HEAT-RESISTING INSULATING DISCS ASSEMBLED IN MUTUAL CONTACT, EACH DISC HAVING A DEPRESSION OF SINUOUS PERIPHERAL FORM ON ONE FACE, PAIRS OF SAID DISCS BEING PLACED WITH SAID DEPRESSIONS FACING ONE ANOTHER TO FORM A SHALLOW ELECTRODE CHAMBER OF SINUOUS PERIPHERAL FORM, OPPOSED PAIRS OF SPARK GAP ELECTRODES IN EACH ELECTRODE CHAMBER AND FLAT PERMANENT MAGNETS DISPOSED ON THE FACES OF SAID DISCS OPPOSITE TO SAID DEPRESSIONS RESPECTIVELY, SAID MAGNETS BEING OPPOSITELY POLARIZED ON OPPOSITE FACES.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |