US3328623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surge arrestor having electrodes containing a low resistivity metal
Assignee: GTE Sylvania Inc
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Filing: 1964-03-02
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Granted: 1967-06-27
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Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Murray E Hale
- 👤 Robert D Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:06
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/02; H01B1/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A SURGE ARRESTOR INCLUDING TWO ELECTRODES WHICH DEFINE A SPARK GAP THEREBETWEEN, EACH OF SAID ELECTRODES BEING FORMED OF A BODY OF A HIGH REFRACTORY POROUS MATERIAL HAVING A FLOW RESISTIVITY METAL CONTAINED IN THE PORES THEREOF BUT REMOVED FROM THE CONFRONTING SURFACES OF THE ELECTRODES TO A PREDETERMINED DEPTH, THE LOW RESISTIVITY METAL BEING READILY VAPORIZABLE WITH RESPECT TO SAID REFRACTORY MATERIAL TO PROVIDE EVAPORATE COOLING BELOW THE ARCING SURFACE OF SAID ELECTRODES UPON OCCURENCE OF AN ARC DISCHARGE.
Claim 2
Dependent Claim
80 words
A SURGE ARRESTOR INCLUDING TWO ELECTRODES WHICH DEFINE A SPARK GAP THEREBETWEEN, EACH OF SAID ELECTRODES BEING FORMED OF A BODY OF A HIGH REFRACTORY POROUS MATERIAL HAVING A FLOW RESISTIVITY METAL CONTAINED IN THE PORES THEREOF BUT REMOVED FROM THE CONFRONTING SURFACES OF THE ELECTRODES TO A PREDETERMINED DEPTH, THE LOW RESISTIVITY METAL BEING READILY VAPORIZABLE WITH RESPECT TO SAID REFRACTORY MATERIAL TO PROVIDE EVAPORATE COOLING BELOW THE ARCING SURFACE OF SAID ELECTRODES UPON OCCURENCE OF AN ARC DISCHARGE.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |