Patent US3146378A successfully refreshed from Google Patents.
US3146378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal relays
Assignee: Texas Instruments Inc
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Filing: 1959-07-29
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Granted: 1964-08-25
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Expires: 1979-07-29
Abstract
No abstract record available.
Inventors
- 👤 Aime J Grenier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:33
CPC Classifications
H; H01; H01H; H01H61/00; H01H61/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A CONTROL MEANS FOR AN ELECTRIC MOTOR HAVING MAIN AND PHASE WINDINGS; INCLUDING AN ELECTROTHERMAL MEANS AND A SWITCH MEANS CONNECTABLE IN SERIES WITH THE PHASE WINDING, SAID SWITCH MEANS BEING MOUNTED FOR MOVEMENT RELATIVE TO AND ENGAGEABLE BY SAID ELECTROTHERMAL MEANS TO DE-ENERGIZE SAID PHASE WINDING WHEN SAID ELECTROTHERMAL MEANS MOVES IN ONE DIRECTION UPON BEING HEATED TO A PREDETERMINED AMOUNT BY CURRENT FLOWING THERETHROUGH, SAID ELECTROTHERMAL MEANS ALSO BEING CONNECTABLE IN SERIES WITH SAID MAIN WINDING; SHUNT MEANS CONNECTED IN PARALLEL WITH SAID ELECTROTHERMAL MEANS AND CONNECTABLE IN SERIES WITH SAID WINDING ADAPTED TO SHUNT OUT SAID ENTIRE ELECTROTHERMAL MEANS IN RESPONSE TO FURTHER MOVEMENT OF THE LATTER IN SAID ONE DIRECTION UPON BEING HEATED TO ANOTHER PREDETERMINED AMOUNT BY THE
Claim 2
Dependent Claim
123 words
A CONTROL MEANS FOR AN ELECTRIC MOTOR HAVING MAIN AND PHASE WINDINGS; INCLUDING AN ELECTROTHERMAL MEANS AND A SWITCH MEANS CONNECTABLE IN SERIES WITH THE PHASE WINDING, SAID SWITCH MEANS BEING MOUNTED FOR MOVEMENT RELATIVE TO AND ENGAGEABLE BY SAID ELECTROTHERMAL MEANS TO DE-ENERGIZE SAID PHASE WINDING WHEN SAID ELECTROTHERMAL MEANS MOVES IN ONE DIRECTION UPON BEING HEATED TO A PREDETERMINED AMOUNT BY CURRENT FLOWING THERETHROUGH, SAID ELECTROTHERMAL MEANS ALSO BEING CONNECTABLE IN SERIES WITH SAID MAIN WINDING; SHUNT MEANS CONNECTED IN PARALLEL WITH SAID ELECTROTHERMAL MEANS AND CONNECTABLE IN SERIES WITH SAID WINDING ADAPTED TO SHUNT OUT SAID ENTIRE ELECTROTHERMAL MEANS IN RESPONSE TO FURTHER MOVEMENT OF THE LATTER IN SAID ONE DIRECTION UPON BEING HEATED TO ANOTHER PREDETERMINED AMOUNT BY THE
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |