Patent US3214634A successfully refreshed from Google Patents.
US3214634A
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US
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Shatterproof valve type lightning arrester
Assignee: Westinghouse Electric Corp
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Filing: 1963-02-26
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Granted: 1965-10-26
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Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 Norman K Osmundsen
- 👤 John P Cage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:04
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/15; H01T1/14; Y; Y10; Y10S; Y10S174/00; Y10S174/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A LIGHTNING ARRESTER COMPRISING A GENERALLY CYLINDRICAL HOUSING OF INSULATING MATERIAL, A PLURALITY OF ARRESTER ELEMENTS DISPOSED IN SERIES RELATION IN SAID HOUSING AND INCLUDING A SPARK GAP ASSEMBLY AND A NON-LINEAR RESISTANCE BLOCK ASSEMBLY, SAID RESISTANCE BLOCK ASSEMBLY INCLUDIN ONE OR MORE BLOCKS OF MOLDED MATERIAL HAVING A DIAMETER LESS THAN THE INTERNAL DIAMETER OF THE HOUSING, SAID ARRESTER ELEMENTS BEING CENTRALLY DISPOSED IN THE HOUSING WITH AN ANNULAR SPACE BETWEEN THE ARREST ELEMENTS AND THE HOUSING, AND A SEPARATE LINER MEMBER DISPOSED IN SAID ANNULAR SPACE AND ENCIRCLING AT LEAST A PART OF THE ARRESTER ELEMENTS, SAID LINER MEMBER COMPRISING A NON-ADHERENT CONTINUOUS MEMBER OF HEAT-RESISTANT INORGANIC MATERIAL OF SUFFICIENT POROSITY TO ABSORB GAS.
Claim 2
Dependent Claim
116 words
A LIGHTNING ARRESTER COMPRISING A GENERALLY CYLINDRICAL HOUSING OF INSULATING MATERIAL, A PLURALITY OF ARRESTER ELEMENTS DISPOSED IN SERIES RELATION IN SAID HOUSING AND INCLUDING A SPARK GAP ASSEMBLY AND A NON-LINEAR RESISTANCE BLOCK ASSEMBLY, SAID RESISTANCE BLOCK ASSEMBLY INCLUDIN ONE OR MORE BLOCKS OF MOLDED MATERIAL HAVING A DIAMETER LESS THAN THE INTERNAL DIAMETER OF THE HOUSING, SAID ARRESTER ELEMENTS BEING CENTRALLY DISPOSED IN THE HOUSING WITH AN ANNULAR SPACE BETWEEN THE ARREST ELEMENTS AND THE HOUSING, AND A SEPARATE LINER MEMBER DISPOSED IN SAID ANNULAR SPACE AND ENCIRCLING AT LEAST A PART OF THE ARRESTER ELEMENTS, SAID LINER MEMBER COMPRISING A NON-ADHERENT CONTINUOUS MEMBER OF HEAT-RESISTANT INORGANIC MATERIAL OF SUFFICIENT POROSITY TO ABSORB GAS.
References Cited (Backward Citations)
US1775544A
Cited
GB332594A
Cited
US2374527A
Cited
US2504438A
Cited
US2802175A
Cited
US2888608A
Cited
US2891194A
Cited
US3018407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |