US3315151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulated transformer power supplies
Assignee: Stabilac Pty Ltd
•
Filing: 1966-01-25
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Granted: 1967-04-18
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Expires: 1986-01-25
Abstract
No abstract record available.
Inventors
- 👤 Wentworth Fitzwilliam Allan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:23
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
AN ELECTRICAL POWER SUPPLY COMPRISING INPUT TERMINALS FOR CONNECTION TO AN ALTERNATING CURRENT SOURCE, A CURRENT LIMITING ELEMENT, A PAIR OF SATURABLE TRANSFORMER CORES, A PRIMARY WINDING ON EACH TRANSFORMER CORE, MEANS FOR COUPLING SAID PRIMARY WINDINGS AND CURRENT LIMITING ELEMENT IN SERIES ACROSS SAID INPUT TERMINALS, A SECONDARY WINDING ON EACH TRANSFORMER CORE, OUTPUT TERMINALS FOR CONNECTION TO A LOAD, MEANS FOR COUPLING SAID SECONDARY WINDINGS IN SERIES TO SAID OUTPUT TERMINALS, CONTROL WINDINGS ON SAID SATURABLE TRANSFORMER CORES, AND MEANS FOR
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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |