US3229160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition system energized by either a.c. or d.c. source
Assignee: Bendix Corp
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Filing: 1962-01-31
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Granted: 1966-01-11
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Expires: 1982-01-31
Abstract
No abstract record available.
Inventors
- 👤 Paul A Blackington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:00
CPC Classifications
F; F02; F02P; F02P15/00; F02P15/001; F02P15/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN ELECTRICAL APPARATUS A POWER TRANSFORMER COMPRISING A PRIMARY WINDING AND A SECONDARY WINDING, A FIRST SOURCE OF DIRECT CURRENT, MEANS CONNECTING SAID PRIMARY WINDING TO BE ENERGIZED BY SAID SOURCE, MEANS FOR PERIODICALLY INTERRUPTING THE CURRENT FLOW FROM SAID SOURCE THROUGH SAID PRIMARY WINDING TO INDUCE A VOLTAGE ACROSS SAID SECONDARY WINDING, A SECOND SOURCE OF ALTERNATING CURRENT, CIRCUIT MEANS FOR CONNECTING SAID PRIMARY WINDING TO BE ENERGIZED BY SAID SECOND SOURCE, SAID CIRCUIT MEANS INCLUDING MEANS FOR CONVERTING THE SINE WAVE OUTPUT OF SAID SECOND SOURCE INTO PERIODIC CURRENT IMPULSES THROUGH SAID PRIMARY WINDING, AND SWITCH MEANS FOR SELECTIVELY CONNECTING SAID SOURCE TO ENERGIZE SAID PRIMARY WINDING.
Claim 2
Dependent Claim
109 words
IN ELECTRICAL APPARATUS A POWER TRANSFORMER COMPRISING A PRIMARY WINDING AND A SECONDARY WINDING, A FIRST SOURCE OF DIRECT CURRENT, MEANS CONNECTING SAID PRIMARY WINDING TO BE ENERGIZED BY SAID SOURCE, MEANS FOR PERIODICALLY INTERRUPTING THE CURRENT FLOW FROM SAID SOURCE THROUGH SAID PRIMARY WINDING TO INDUCE A VOLTAGE ACROSS SAID SECONDARY WINDING, A SECOND SOURCE OF ALTERNATING CURRENT, CIRCUIT MEANS FOR CONNECTING SAID PRIMARY WINDING TO BE ENERGIZED BY SAID SECOND SOURCE, SAID CIRCUIT MEANS INCLUDING MEANS FOR CONVERTING THE SINE WAVE OUTPUT OF SAID SECOND SOURCE INTO PERIODIC CURRENT IMPULSES THROUGH SAID PRIMARY WINDING, AND SWITCH MEANS FOR SELECTIVELY CONNECTING SAID SOURCE TO ENERGIZE SAID PRIMARY WINDING.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |