US3205966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine electric drive
Assignee: ENGINE ELECTRIC DRIVE Inc
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Filing: 1962-11-28
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Granted: 1965-09-14
•
Expires: 1982-11-28
Abstract
No abstract record available.
Inventors
- 👤 Albert F Landers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:13
CPC Classifications
B; B60; B60K; B60K6/00; B60K6/20; B60K6/42; B60K6/44; B60W; B60W20/00; B60W20/10; B60K17/00; B60K17/04; B60K17/12; B60K6/46; B60L; B60L50/00; B60L50/10; B60L50/11; B60W10/00; B60W10/04; B60W10/06; B60W10/08; B60K1/00; B60K1/02; B60K7/00; B60K7/0007; B60L2240/00; B60L2240/40; B60L2240/42; B60L2240/423; B60W2710/00; B60W2710/06; B60W2710/0666; B60W2710/08; B60W2710/083; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y02T10/64; Y02T10/70; Y02T10/7072
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A POWER DRIVE SYSTEM FOR DRIVING VARIABLE BOADS IN RESPONSE TO AN ENGINE THE SPEED OF WHICH IS VARIABLE, COMPRISING AT LEAST ONE DIFFERENTIALLY COMPOUND GENERATOR CONNECTABLE TO BE DRIVEN BY SAID ENGINE AT ANY DESIRED ENGINE SPEED AND ABOVE AND INCLUDING MEANS FOR MAINTAINING A PROTECTIVE MAXIMUM HORSEPOWER CHARACTERISTIC FOR PREVENTING ENGINE OVERLOAD AND STALL, TWO COMPOUND MOTORS HAVING THEIR ARMATURE CIRCUITS IN PARALLEL WITH EACH OTHER AND IN SERIES WITH THE ARMATURE CIRCUIT OF SAID GENERATOR FOR DRIVING SAID LOADS RESPECTIVELY, CONSTANT POTENTIAL SORUCE MEANS, AND MEANS, INCLUDING SPEED AND TORQUE CONTROL RSISTANCE CONNECTED BETWEEN SAID SOURCE MEANS AND, RESPECTIVELY, THE GENERATOR SHUNT FILED WINDING AND A PARALLEL CONNECTION OF THE MOTOR SHUNT FIELD WINDINGS, FOR ADJUSTING THE SPEED TORQUE CHARACTISTIC OF THE DRIVE SYSTEM IN ACCORDANCE WITH THE LOAD REQUIREMENT ON SAID MOTORS TO ALLOW FOR MAXIMUM STARTING
Claim 2
Dependent Claim
141 words
A POWER DRIVE SYSTEM FOR DRIVING VARIABLE BOADS IN RESPONSE TO AN ENGINE THE SPEED OF WHICH IS VARIABLE, COMPRISING AT LEAST ONE DIFFERENTIALLY COMPOUND GENERATOR CONNECTABLE TO BE DRIVEN BY SAID ENGINE AT ANY DESIRED ENGINE SPEED AND ABOVE AND INCLUDING MEANS FOR MAINTAINING A PROTECTIVE MAXIMUM HORSEPOWER CHARACTERISTIC FOR PREVENTING ENGINE OVERLOAD AND STALL, TWO COMPOUND MOTORS HAVING THEIR ARMATURE CIRCUITS IN PARALLEL WITH EACH OTHER AND IN SERIES WITH THE ARMATURE CIRCUIT OF SAID GENERATOR FOR DRIVING SAID LOADS RESPECTIVELY, CONSTANT POTENTIAL SORUCE MEANS, AND MEANS, INCLUDING SPEED AND TORQUE CONTROL RSISTANCE CONNECTED BETWEEN SAID SOURCE MEANS AND, RESPECTIVELY, THE GENERATOR SHUNT FILED WINDING AND A PARALLEL CONNECTION OF THE MOTOR SHUNT FIELD WINDINGS, FOR ADJUSTING THE SPEED TORQUE CHARACTISTIC OF THE DRIVE SYSTEM IN ACCORDANCE WITH THE LOAD REQUIREMENT ON SAID MOTORS TO ALLOW FOR MAXIMUM STARTING
References Cited (Backward Citations)
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US1745130A
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US1803676A
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US1946293A
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |