US3373328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction-motor type transistor motor
Assignee: Denso Corp
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Filing: 1965-03-10
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Granted: 1968-03-12
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Expires: 1985-03-10
Abstract
No abstract record available.
Inventors
- 👤 Hobo Nobuhito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:02
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
IN AN INDUCTION-MOTOR TYPE TRANSISTOR MOTOR, AN INDUCTION MOTOR HAVING A STATOR AND A ROTOR, A STATOR WINDING ON SAID STATOR, SAID STATOR WINDING BEING DIVIDED INTO TWO SPACED SEGMENTS, CONNECTED TOGETHER, A TAP CONNECTION CONNECTED TO THE CONNECTION BETWEEN SAID TWO SPACED SEGMENTS, AN AUXILIARY WINDING WOUND ON SAID STATOR BETWEEN SAID TWO SEGMENTS, A PAIR OF TRANSISTORS CONNECTED IN PUSH-PULL FOR RELAXATION OSCILLATION, A FIRST RESISTOR CONNECTED BETWEEN THE BASE OF A FIRST ONE OF SAID TRANSISTOR AND THE COLLECTOR OF A SECOND ONE OF SAID TRANSISTORS, A SECOND RESISTOR OF RESISTANCE EQUAL TO THE RESISTANCE OF SAID FIRST ONE OF SAID RESISTORS CONNECTED BETWEEN THE BASE OF THE SECOND ONE OF SAID TRANSISTORS AND THE COLLECTOR OF THE FIRST ONE OF SAID TRANSISTORS, THE EMITTERS OF SAID TWO TRANSISTORS BEING CONNECTED TOGETHER, A SOURCE OF DIRECT CURRENT CONNECTED BETWEEN SAID TAP CONNECTION BETWEEN SAID SPACED SEGMENTS AND THE EMITTERS OF SAID TWO TRANSISTORS, AND THE TWO ENDS OF SAID AUXILIARY WINDING BEING RESPECTIVELY CONNECTED TO THE BASES OF SAID TWO TRANSISTORS AND THE FREE ENDS OF SAID TWO SEGMENTS OF SAID STATOR WINDING WHICH ARE NOT CONNECTED TOGETHER BEING RESPECTIVELY CONNECTED TO THE TWO COLLECTORS OF SAID PAIR OF TRANSISTORS.
Claim 2
Dependent Claim
203 words
IN AN INDUCTION-MOTOR TYPE TRANSISTOR MOTOR, AN INDUCTION MOTOR HAVING A STATOR AND A ROTOR, A STATOR WINDING ON SAID STATOR, SAID STATOR WINDING BEING DIVIDED INTO TWO SPACED SEGMENTS, CONNECTED TOGETHER, A TAP CONNECTION CONNECTED TO THE CONNECTION BETWEEN SAID TWO SPACED SEGMENTS, AN AUXILIARY WINDING WOUND ON SAID STATOR BETWEEN SAID TWO SEGMENTS, A PAIR OF TRANSISTORS CONNECTED IN PUSH-PULL FOR RELAXATION OSCILLATION, A FIRST RESISTOR CONNECTED BETWEEN THE BASE OF A FIRST ONE OF SAID TRANSISTOR AND THE COLLECTOR OF A SECOND ONE OF SAID TRANSISTORS, A SECOND RESISTOR OF RESISTANCE EQUAL TO THE RESISTANCE OF SAID FIRST ONE OF SAID RESISTORS CONNECTED BETWEEN THE BASE OF THE SECOND ONE OF SAID TRANSISTORS AND THE COLLECTOR OF THE FIRST ONE OF SAID TRANSISTORS, THE EMITTERS OF SAID TWO TRANSISTORS BEING CONNECTED TOGETHER, A SOURCE OF DIRECT CURRENT CONNECTED BETWEEN SAID TAP CONNECTION BETWEEN SAID SPACED SEGMENTS AND THE EMITTERS OF SAID TWO TRANSISTORS, AND THE TWO ENDS OF SAID AUXILIARY WINDING BEING RESPECTIVELY CONNECTED TO THE BASES OF SAID TWO TRANSISTORS AND THE FREE ENDS OF SAID TWO SEGMENTS OF SAID STATOR WINDING WHICH ARE NOT CONNECTED TOGETHER BEING RESPECTIVELY CONNECTED TO THE TWO COLLECTORS OF SAID PAIR OF TRANSISTORS.
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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) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |