Patent US3112435A successfully refreshed from Google Patents.
US3112435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surge protection circuit
Assignee: Individual
•
Filing: 1962-01-15
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Granted: 1963-11-26
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Expires: 1982-01-15
Abstract
No abstract record available.
Inventors
- 👤 Barney Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:19
CPC Classifications
H; H02; H02P; H02P1/00; H02P1/02; H02P1/04; H02H; H02H9/00; H02H9/001; Y; Y10; Y10S; Y10S323/00; Y10S323/908
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A PROTECTIVE CIRCUIT FOR CONNECTION BETWEEN AN ELECTRICAL SOURCE AND A LOAD, COMPRISING, IN COMBINATION: (A) A CURRENT SENSITIVE RESISTANCE MEANS WHICH GRADUALLY DECREASES IN RESISTANCE FROM A GIVEN HIGH VALUE IN RESPONSE TO CURRENT PASSING THERETHROUGH, SAID RESISTANCE MEANS BEING ADAPTED FOR CONNECTION IN SERIES WITH SAID LOAD SUCH THAT ALL CURRENT INITIALLY SUPPLIED TO SAID LOAD PASSES THROUGH SAID RESISTANCE MEANS, WHEREBY SAID CURRENT GRADUALLY INCREASES; (B) A CONDUCTIVE CIRCUIT ADAPTED TO SHUNT SAID RESISTANCE MEANS; AND, (C) CURRENT RESPONSIVE MEANS CONNECTED IN SERIES WITH SAID LOAD AND SAID RESISTANCE MEANS AND RESPONSIVE TO A GIVEN VALUE OF SAID CURRENT PASSING THROUGH SAID RESISTANCE MEANS FOR CLOSING SAID CONDUCTIVE CIRCUIT A GIVEN LENGTH OF TIME AFTER APPLICATION OF SAID LOAD, SAID RESISTANCE MEANS INCLUDING MEANS RESPONSIVE TO DISCONNECTION AND RECONNECTION OF SAID ELECTRICAL SOURCE AND SAID LOAD FOR PROVIDING SUBSTANTIALLY IMMEDIATELY A RESISTANCE OF SAID GIVEN HIGH VALUE TO CURRENT SUPPLIED TO SAID LOAD UPON RECONNECTION OF SAID ELECTRICAL SOURCE TO SAID LOAD.
Claim 2
Dependent Claim
165 words
A PROTECTIVE CIRCUIT FOR CONNECTION BETWEEN AN ELECTRICAL SOURCE AND A LOAD, COMPRISING, IN COMBINATION: (A) A CURRENT SENSITIVE RESISTANCE MEANS WHICH GRADUALLY DECREASES IN RESISTANCE FROM A GIVEN HIGH VALUE IN RESPONSE TO CURRENT PASSING THERETHROUGH, SAID RESISTANCE MEANS BEING ADAPTED FOR CONNECTION IN SERIES WITH SAID LOAD SUCH THAT ALL CURRENT INITIALLY SUPPLIED TO SAID LOAD PASSES THROUGH SAID RESISTANCE MEANS, WHEREBY SAID CURRENT GRADUALLY INCREASES; (B) A CONDUCTIVE CIRCUIT ADAPTED TO SHUNT SAID RESISTANCE MEANS; AND, (C) CURRENT RESPONSIVE MEANS CONNECTED IN SERIES WITH SAID LOAD AND SAID RESISTANCE MEANS AND RESPONSIVE TO A GIVEN VALUE OF SAID CURRENT PASSING THROUGH SAID RESISTANCE MEANS FOR CLOSING SAID CONDUCTIVE CIRCUIT A GIVEN LENGTH OF TIME AFTER APPLICATION OF SAID LOAD, SAID RESISTANCE MEANS INCLUDING MEANS RESPONSIVE TO DISCONNECTION AND RECONNECTION OF SAID ELECTRICAL SOURCE AND SAID LOAD FOR PROVIDING SUBSTANTIALLY IMMEDIATELY A RESISTANCE OF SAID GIVEN HIGH VALUE TO CURRENT SUPPLIED TO SAID LOAD UPON RECONNECTION OF SAID ELECTRICAL SOURCE TO SAID LOAD.
References Cited (Backward Citations)
US2885604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |