US3229184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply filter circuit
Assignee: RTX Corp
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Filing: 1963-03-11
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Granted: 1966-01-11
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Churchill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:56
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/14; H02M1/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN A DIRECT CURRENT POWER SUPPLY, THE OUTPUT OF WHICH HAS AT LEAST ONE UNDESIRABLE ALTERNATING CURRENT COMPONENT, SAID POWER SUPPLY INCLUDING A SOURCE OF ALTERNATING CURRENT, A LOAD, AND RECTIFIER MEANS CONNECTED BETWEEN SAID SOURCE AND SAID LOAD, A FILTER CIRCUIT COMPRISING A TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, THE PRIMARY WINDING BEING CONNECTED BETWEEN SAID RECTIFIER MEANS AND SAID LOAD, MEANS OFFERING A HIGH IMPEDANCE TO SAID UNDERSIRABLE ALTERNATING CURRENT COMPONENT, MEANS CONNECTING SAID HIGH IMPEDANCE MEANS TO ONE END OF THE SECONDARY WINDING OF SAID TRANSFORMER, MEANS FOR PRODUCING A DIRECT CURRENT PROPORTIONAL TO THE ALTERNATING CURRENT FROM SAID SOURCE, AND MEANS CONNECTING SAID DIRECT CURRENT PRODUCING MEANS TO THE OTHER END OF SAID SECONDARY WINDING AND TO SAID HIGH IMPEDANCE MEANS TO GENERATE A FLUX IN SAID TRANSFORMER OPPOSITE TO THE FLUX GENERATED BY THE CURRENT IN SAID PRIMARY WINDING.
Claim 2
Dependent Claim
147 words
IN A DIRECT CURRENT POWER SUPPLY, THE OUTPUT OF WHICH HAS AT LEAST ONE UNDESIRABLE ALTERNATING CURRENT COMPONENT, SAID POWER SUPPLY INCLUDING A SOURCE OF ALTERNATING CURRENT, A LOAD, AND RECTIFIER MEANS CONNECTED BETWEEN SAID SOURCE AND SAID LOAD, A FILTER CIRCUIT COMPRISING A TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, THE PRIMARY WINDING BEING CONNECTED BETWEEN SAID RECTIFIER MEANS AND SAID LOAD, MEANS OFFERING A HIGH IMPEDANCE TO SAID UNDERSIRABLE ALTERNATING CURRENT COMPONENT, MEANS CONNECTING SAID HIGH IMPEDANCE MEANS TO ONE END OF THE SECONDARY WINDING OF SAID TRANSFORMER, MEANS FOR PRODUCING A DIRECT CURRENT PROPORTIONAL TO THE ALTERNATING CURRENT FROM SAID SOURCE, AND MEANS CONNECTING SAID DIRECT CURRENT PRODUCING MEANS TO THE OTHER END OF SAID SECONDARY WINDING AND TO SAID HIGH IMPEDANCE MEANS TO GENERATE A FLUX IN SAID TRANSFORMER OPPOSITE TO THE FLUX GENERATED BY THE CURRENT IN 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 |