Patent US3290579A successfully refreshed from Google Patents.
US3290579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-phase a. c. to d. c. converter with output control means
Assignee: Individual
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Filing: 1963-10-30
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Granted: 1966-12-06
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Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 Hausner Johann Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:15
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN A CONVEYOR HAVING A MULTI-PHASE A.C. INPUT AND A D.C. OUTPUT, A PLURALITY OF RECTIFIERS CONNECTED TO SAID OUTPUT, A MULTI-PHASE SYSTEM CONNECTED TO SAID INPUT AND INCLUDING A PLURALITY OF TRANSFORMERS HAVING CONTROL WINDINGS AND HAVING OUTPUT WINDINGS CONNECTED IN CIRCUIT WITH SAID RECTIFIERS AND SAID OUTPUT AND OPERATIVE IN THE ABSENCE OF SIGNALS ON SAID CONTROL WINDINGS TO DEVELOP A D.C. VOLTAGE AT SAID OUTPUT WITH A SUPERIMPOSED A.C. RIPPLE VOLTAGE, AND CONTROL MEANS FOR APPLY-
Claim 2
Dependent Claim
79 words
IN A CONVEYOR HAVING A MULTI-PHASE A.C. INPUT AND A D.C. OUTPUT, A PLURALITY OF RECTIFIERS CONNECTED TO SAID OUTPUT, A MULTI-PHASE SYSTEM CONNECTED TO SAID INPUT AND INCLUDING A PLURALITY OF TRANSFORMERS HAVING CONTROL WINDINGS AND HAVING OUTPUT WINDINGS CONNECTED IN CIRCUIT WITH SAID RECTIFIERS AND SAID OUTPUT AND OPERATIVE IN THE ABSENCE OF SIGNALS ON SAID CONTROL WINDINGS TO DEVELOP A D.C. VOLTAGE AT SAID OUTPUT WITH A SUPERIMPOSED A.C. RIPPLE VOLTAGE, AND CONTROL MEANS FOR APPLY-
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |