US3127790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric drive
Assignee: Raytheon Co
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Filing: 1960-04-20
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Granted: 1964-04-07
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Expires: 1980-04-20
Abstract
No abstract record available.
Inventors
- 👤 Charles K Howey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:13
CPC Classifications
B; B23; B23Q; B23Q15/00; B23B; B23B7/00; B23B7/02; B23B7/10; B23C; B23C9/00; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19014; Y10T74/19023; Y10T74/1914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
AN ELECTRIC DRIVE, COMPRISING: AN OUTPUT SHAFT; A FIRST MOTOR; MEANS CONNECTING SAID MOTOR TO SAID OUTPUT SHAFT TO DRIVE SAID OUTPUT SHAFT; A SECOND MOTOR; MEANS INCLUDING A NORMALLY DISENGAGED, ELECTRICALLY OPERATED CLUTCH COUPLING SAID SECOND MOTOR TO SAID OUTPUT SHAFT; A FIRST MOTOR ENERGIZING CIRCUIT CONNECTED TO SAID FIRST MOTOR AND A SECOND MOTOR ENERGIZING CIRCUIT CONNECTED TO SAID SECOND MOTOR FOR ENERGIZING SAID MOTORS IN A SENSE TO DRIVE SAID OUTPUT SHAFT IN ONE DIRECTION; A NORMALLY INOPERATIVE MOTOR BRAKING CIRCUIT COUPLED TO SAID FIRST MOTOR; A CLUTCH CONTROL CIRCUIT COUPLED TO SAID CLUTCH; AND CONTROL MEANS COUPLED TO SAID FIRST MOTOR ENERGIZING CIRCUIT, TO SAID MOTOR BRAKING CIRCUIT AND TO SAID CLUTCH CONTROL CIRCUIT TO DISCONNECT SAID FIRST MOTOR ENERGIZING CIRCUIT FROM SAID FIRST MOTOR, TO OPERATE SAID MOTOR BRAKING CIRCUIT AND TO OPERATE SAID CLUTCH CONTROL CIRCUIT TO ENGAGE SAID CLUTCH.
Claim 2
Dependent Claim
146 words
AN ELECTRIC DRIVE, COMPRISING: AN OUTPUT SHAFT; A FIRST MOTOR; MEANS CONNECTING SAID MOTOR TO SAID OUTPUT SHAFT TO DRIVE SAID OUTPUT SHAFT; A SECOND MOTOR; MEANS INCLUDING A NORMALLY DISENGAGED, ELECTRICALLY OPERATED CLUTCH COUPLING SAID SECOND MOTOR TO SAID OUTPUT SHAFT; A FIRST MOTOR ENERGIZING CIRCUIT CONNECTED TO SAID FIRST MOTOR AND A SECOND MOTOR ENERGIZING CIRCUIT CONNECTED TO SAID SECOND MOTOR FOR ENERGIZING SAID MOTORS IN A SENSE TO DRIVE SAID OUTPUT SHAFT IN ONE DIRECTION; A NORMALLY INOPERATIVE MOTOR BRAKING CIRCUIT COUPLED TO SAID FIRST MOTOR; A CLUTCH CONTROL CIRCUIT COUPLED TO SAID CLUTCH; AND CONTROL MEANS COUPLED TO SAID FIRST MOTOR ENERGIZING CIRCUIT, TO SAID MOTOR BRAKING CIRCUIT AND TO SAID CLUTCH CONTROL CIRCUIT TO DISCONNECT SAID FIRST MOTOR ENERGIZING CIRCUIT FROM SAID FIRST MOTOR, TO OPERATE SAID MOTOR BRAKING CIRCUIT AND TO OPERATE SAID CLUTCH CONTROL CIRCUIT TO ENGAGE SAID CLUTCH.
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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |