US3249815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightning arrester in combination with an arrester disconnector having a spark gap in parallel with the disconnector
Assignee: Joslyn Manufacturing and Supply Co
•
Filing: 1965-06-01
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Granted: 1966-05-03
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Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 Philip C Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:03
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A LIGHTNING ARRESTER UNIT FOR USE WITH A HIGH VOLTAGE POWER DISTRIBUTION SYSTEM COMPRISING A PAIR OF SPACED APART SPARK GAP TERMINALS FORMING AN EXTERNAL ISOLATING GAP, A LIGHTNING ARRESTER ELECTRICALLY CONNECTED TO ONE OF SAID SPARK GAP TERMINALS, SAID LIGHTNING ARRESTER AND SAID GAP BEING NORMALLY SERIALLY ELECTRICALLY CONNECTED BETWEEN GROUND AND AN EXTERNAL POWER SOURCE, ARRESTER DISCONNECTOR MEANS ELECTRICALLY CONNECTED TO ONE OF SAID TERMINALS, AND ELECTRICAL CONDUCTING MEANS CONNECTING THE OTHER OF SAID TERMINALS TO SAID DISCONNECTOR MEANS, SAID ARRESTER DISCONNECTOR MEANS EXPLOSIVELY ISOLATING SAID SPARK GAP TERMINALS FROM ONE ANOTHER UPON AN OVER VOLTAGE CONDITION, SAID DISCONNECTOR MEANS AND SAID ELECTRICAL CONDUCTING MEANS INDICATING A FAILURE OF THE LIGHTNING ARRESTER, SAID GAP PROVIDING PROTECTION FOR THE EXTERNAL POWER SOURCE AFTER ISOLATING BY SAID ARRESTER DISCONNECTOR MEANS.
Claim 2
Dependent Claim
130 words
A LIGHTNING ARRESTER UNIT FOR USE WITH A HIGH VOLTAGE POWER DISTRIBUTION SYSTEM COMPRISING A PAIR OF SPACED APART SPARK GAP TERMINALS FORMING AN EXTERNAL ISOLATING GAP, A LIGHTNING ARRESTER ELECTRICALLY CONNECTED TO ONE OF SAID SPARK GAP TERMINALS, SAID LIGHTNING ARRESTER AND SAID GAP BEING NORMALLY SERIALLY ELECTRICALLY CONNECTED BETWEEN GROUND AND AN EXTERNAL POWER SOURCE, ARRESTER DISCONNECTOR MEANS ELECTRICALLY CONNECTED TO ONE OF SAID TERMINALS, AND ELECTRICAL CONDUCTING MEANS CONNECTING THE OTHER OF SAID TERMINALS TO SAID DISCONNECTOR MEANS, SAID ARRESTER DISCONNECTOR MEANS EXPLOSIVELY ISOLATING SAID SPARK GAP TERMINALS FROM ONE ANOTHER UPON AN OVER VOLTAGE CONDITION, SAID DISCONNECTOR MEANS AND SAID ELECTRICAL CONDUCTING MEANS INDICATING A FAILURE OF THE LIGHTNING ARRESTER, SAID GAP PROVIDING PROTECTION FOR THE EXTERNAL POWER SOURCE AFTER ISOLATING BY SAID ARRESTER DISCONNECTOR MEANS.
References Cited (Backward Citations)
US2305436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |