Patent US3271649A successfully refreshed from Google Patents.
US3271649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerative braking system
Assignee: Individual
•
Filing: 1963-09-06
•
Granted: 1966-09-06
•
Expires: 1983-09-06
Abstract
No abstract record available.
Inventors
- 👤 Juergensen Klaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:41
CPC Classifications
H; H02; H02P; H02P3/00; H02P3/06; H02P3/08; H02P3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A DIRECT CURRENT BILATERAL ENERGY TRANSFER SYSTEM COMPRISING: (A) A SOURCE OF DIRECT CURRENT HAVING FIRST AND SECOND TERMINALS; (B) ELECTROMECHANICAL MEANS COMPRISING FIRST AND SECOND ELECTRICAL TERMINALS AND A MECHANICALLY MOVING ELEMENT AND MEANS FOR INTERCHANGING ENERGY BETWEEN SAID ELECTRICAL TERMINALS AND MOVING ELEMENT; (C) A FIRST ELECTRICAL CIRCUIT INTERCONNECTING SAID FIRST TERMINAL OF SAID SOURCE AND SAID FIRST TERMINAL OF SAID ELECTROMECHANICAL MEANS AND INCLUDING IN SERIES FIRST SWITCHING MEANS AND AN INDUCTOR, (1) SAID FIRST SWITCHING MEANS COMPRISING MEANS FOR CONTROLLABLY OPENING AND CLOSING SAID FIRST ELECTRICAL CIRCUIT; (D) A SECOND ELECTRICAL CIRCUIT INTERCONNECTING SAID SECOND TERMINAL OF SAID SOURCE AND SAID SECOND TERMINAL OF SAID ELECTROMECHANICAL MEANS AND INCLUDING IN SERIES SECOND SWITCHING MEANS, (1) SAID SECOND SWITCHING MEANS COMPRISING MEANS FOR CONTROLLABLY OPENING AND CLOSING SAID SECOND ELECTRICAL CIRCUIT; (E) A FIRST UNIDIRECTIONAL CONDUCTING CIRCUIT CONNECTED BETWEEN SAID FIRST TERMINAL OF SAID SOURCE AN SAID SECOND TERMINAL OF SAID ELECTROMECHANICAL MEANS AND POLED TO PERMIT CURRENT FLOW ONLY FROM SAID LAST NAMED SECOND TERMINAL TO SAID LAST NAMED FIRST TERMINAL;
Claim 2
Dependent Claim
175 words
A DIRECT CURRENT BILATERAL ENERGY TRANSFER SYSTEM COMPRISING: (A) A SOURCE OF DIRECT CURRENT HAVING FIRST AND SECOND TERMINALS; (B) ELECTROMECHANICAL MEANS COMPRISING FIRST AND SECOND ELECTRICAL TERMINALS AND A MECHANICALLY MOVING ELEMENT AND MEANS FOR INTERCHANGING ENERGY BETWEEN SAID ELECTRICAL TERMINALS AND MOVING ELEMENT; (C) A FIRST ELECTRICAL CIRCUIT INTERCONNECTING SAID FIRST TERMINAL OF SAID SOURCE AND SAID FIRST TERMINAL OF SAID ELECTROMECHANICAL MEANS AND INCLUDING IN SERIES FIRST SWITCHING MEANS AND AN INDUCTOR, (1) SAID FIRST SWITCHING MEANS COMPRISING MEANS FOR CONTROLLABLY OPENING AND CLOSING SAID FIRST ELECTRICAL CIRCUIT; (D) A SECOND ELECTRICAL CIRCUIT INTERCONNECTING SAID SECOND TERMINAL OF SAID SOURCE AND SAID SECOND TERMINAL OF SAID ELECTROMECHANICAL MEANS AND INCLUDING IN SERIES SECOND SWITCHING MEANS, (1) SAID SECOND SWITCHING MEANS COMPRISING MEANS FOR CONTROLLABLY OPENING AND CLOSING SAID SECOND ELECTRICAL CIRCUIT; (E) A FIRST UNIDIRECTIONAL CONDUCTING CIRCUIT CONNECTED BETWEEN SAID FIRST TERMINAL OF SAID SOURCE AN SAID SECOND TERMINAL OF SAID ELECTROMECHANICAL MEANS AND POLED TO PERMIT CURRENT FLOW ONLY FROM SAID LAST NAMED SECOND TERMINAL TO SAID LAST NAMED FIRST TERMINAL;
References Cited (Backward Citations)
US2980839A
Cited
US3165685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |