US3364409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for a direct-current motor
Assignee: Individual
•
Filing: 1964-07-22
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Granted: 1968-01-16
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Expires: 1984-07-22
Abstract
No abstract record available.
Inventors
- 👤 Schuepp Eduard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:52
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/285; H02P7/29; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A CONTROL SYSTEM FOR A DIRECT-CURRENT MOTOR HAVING A CONTROLLED RECTIFIER ACTING AS AN ALTERNATELY CONDUCTING AND BLOCKING ELECTRONIC SWITCH AND FORMING A CURRENT CIRCUIT TOGETHER WITH A SOURCE OF DIRECT-CURRENT VOLTAGE AND AT LEAST ONE DIRECT-CURRENT MOTOR, SAID RECTIFIER BEING CONNECTED IN PARALLEL ARRANGEMENT WITH A SERIES CIRCUIT CONSISTING OF A CAPACITOR AND A SECOND CONTROLLED RECTIFIER, MEANS PROVIDING A CURRENT PATH LEADING FROM SAID SOURCE TO THE INTERCONNECTION OF THE CAPACITOR AND THE SECOND CONTROLLED RECTIFIER, ON DIODE ARRANGED IN SERIES CONNECTION WITH THE MOTOR, MEANS PROVIDING A CURRENT PATH LEADING FROM SAID SOURCE TO THE INTERCONNECTION OF THE CAPACITOR AND THE FIRST CONTROLLED RECTIFIER AND PULSE EMITTER MEANS ALTERNATIVELY DELIVERING IGNITION PULSES TO THE CONTROLLED RECTIFIERS.
Claim 2
Dependent Claim
120 words
IN A CONTROL SYSTEM FOR A DIRECT-CURRENT MOTOR HAVING A CONTROLLED RECTIFIER ACTING AS AN ALTERNATELY CONDUCTING AND BLOCKING ELECTRONIC SWITCH AND FORMING A CURRENT CIRCUIT TOGETHER WITH A SOURCE OF DIRECT-CURRENT VOLTAGE AND AT LEAST ONE DIRECT-CURRENT MOTOR, SAID RECTIFIER BEING CONNECTED IN PARALLEL ARRANGEMENT WITH A SERIES CIRCUIT CONSISTING OF A CAPACITOR AND A SECOND CONTROLLED RECTIFIER, MEANS PROVIDING A CURRENT PATH LEADING FROM SAID SOURCE TO THE INTERCONNECTION OF THE CAPACITOR AND THE SECOND CONTROLLED RECTIFIER, ON DIODE ARRANGED IN SERIES CONNECTION WITH THE MOTOR, MEANS PROVIDING A CURRENT PATH LEADING FROM SAID SOURCE TO THE INTERCONNECTION OF THE CAPACITOR AND THE FIRST CONTROLLED RECTIFIER AND PULSE EMITTER MEANS ALTERNATIVELY DELIVERING IGNITION PULSES TO THE CONTROLLED RECTIFIERS.
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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |