US3305715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor control arrangement
Assignee: Carrier Corp
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Filing: 1963-10-10
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Granted: 1967-02-21
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Expires: 1983-10-10
Abstract
No abstract record available.
Inventors
- 👤 Harvey G Stenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:22
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/08; H02H7/085; H02H7/0852
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A CONTROL ARRANGEMENT FOR A POLYPHASE ELECTRIC MOTOR OPERABLY CONNECTED TO A SOURCE OF ELECTRIC ENERGY, THE COMBINATION OF SWITCH MEANS ADAPTED WHEN MOVED TO A FIRST POSITION TO INTERRUPT THE CONNECTION BETWEEN THE MOTOR WINDINGS AND THE SOURCE OF ELECTRIC ENERGY, MEANS FOR ACTUATING SAID SWITCH MEANS, AND CONTROL MEANS FOR SAID ACTUATING MEANS INCLUDING MEANS FOR SENSING TEMPERATURE OF ONE OF SAID MOTOR WINDINGS OPERABLE IN RESPONSE TO A PREDETERMINED TEMPERATURE TO ENERGIZE SAID ACTUATING MEANS TO MOVE SAID SWITCH MEANS TO SAID FIRST POSITION, AND MEANS FOR SENSING CURRENT PASSING THROUGH EACH OF SAID MOTOR WINDINGS OPERABLE IN RESPONSE TO A PREDETERMINED CURRENT TO ENERGIZE SAID ACTUATING MEANS TO MOVE SAID SWITCH MEANS TO SAID FIRST POSITION, SAID CURRENT SENSING MEANS INCLUDING A CURRENT SENSING ELEMENT BETWEEN SAID SWITCH MEANS AND EACH OF THE OTHER MOTOR WINDINGS.
Claim 2
Dependent Claim
141 words
IN A CONTROL ARRANGEMENT FOR A POLYPHASE ELECTRIC MOTOR OPERABLY CONNECTED TO A SOURCE OF ELECTRIC ENERGY, THE COMBINATION OF SWITCH MEANS ADAPTED WHEN MOVED TO A FIRST POSITION TO INTERRUPT THE CONNECTION BETWEEN THE MOTOR WINDINGS AND THE SOURCE OF ELECTRIC ENERGY, MEANS FOR ACTUATING SAID SWITCH MEANS, AND CONTROL MEANS FOR SAID ACTUATING MEANS INCLUDING MEANS FOR SENSING TEMPERATURE OF ONE OF SAID MOTOR WINDINGS OPERABLE IN RESPONSE TO A PREDETERMINED TEMPERATURE TO ENERGIZE SAID ACTUATING MEANS TO MOVE SAID SWITCH MEANS TO SAID FIRST POSITION, AND MEANS FOR SENSING CURRENT PASSING THROUGH EACH OF SAID MOTOR WINDINGS OPERABLE IN RESPONSE TO A PREDETERMINED CURRENT TO ENERGIZE SAID ACTUATING MEANS TO MOVE SAID SWITCH MEANS TO SAID FIRST POSITION, SAID CURRENT SENSING MEANS INCLUDING A CURRENT SENSING ELEMENT BETWEEN SAID SWITCH MEANS AND EACH OF THE OTHER MOTOR WINDINGS.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |