Patent US3177402A successfully refreshed from Google Patents.
US3177402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Over-current protective circuits
Assignee: Raytheon Co
•
Filing: 1962-05-25
•
Granted: 1965-04-06
•
Expires: 1982-05-25
Abstract
No abstract record available.
Inventors
- 👤 Muchnick Paul
- 👤 Jr Ernest Levy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:57
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56; G05F1/565; G05F1/569; G05F1/573
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
AN OVER-CURRENT PROTECTIVE CIRCUIT FOR DIRECT CURRENT VOLTAGE REGULATORS COMPRISING: A VOLTAGE REGULATOR CIRCUIT WHICH INCLUDES A PASSING IMPEDANCE, A SENSING CIRCUIT COUPLED TO A LOAD CIRCUIT, AND AN AMPLIFIER COUPLED BETWEEN THE SENSING CIRCUIT AND THE PASSING INPEDANCE, SAID PASSING IMPEDANCE CONNECTED IN SERIES BETWEEN AN INPUT AND AN OUTPUT TERMINAL; A CONTROL WINDING CONNECTED IN SERIES BETWEEN AN INPUT AND AN OUTPUT TERMINAL, SAID WINDING CONTAINING A SATURABLE CORE WHICH REMAINS UNSATURATED DURING NORMAL CURRENT FLOW; AN ALTERNATING CURRENT WINDING ALSO ON SAID CORE AND CONNECTED IN SERIES BETWEEN A SOURCE OF ALTERNATING CURRENT POWER AND A RECTIFIER; AND COUPLING MEANS BETWEEN THE DIRECT TERMINALS OF SAID RECTIFIER AND THE PASSING IMPEDANCE FOR INCREASING THE IMPEDANCE VALUE WHEN A CURRENT GREATER THAN A PREDETERMINED VALUE IS SENT THROUGH SAID CONTROL WINDING.
Claim 2
Dependent Claim
133 words
AN OVER-CURRENT PROTECTIVE CIRCUIT FOR DIRECT CURRENT VOLTAGE REGULATORS COMPRISING: A VOLTAGE REGULATOR CIRCUIT WHICH INCLUDES A PASSING IMPEDANCE, A SENSING CIRCUIT COUPLED TO A LOAD CIRCUIT, AND AN AMPLIFIER COUPLED BETWEEN THE SENSING CIRCUIT AND THE PASSING INPEDANCE, SAID PASSING IMPEDANCE CONNECTED IN SERIES BETWEEN AN INPUT AND AN OUTPUT TERMINAL; A CONTROL WINDING CONNECTED IN SERIES BETWEEN AN INPUT AND AN OUTPUT TERMINAL, SAID WINDING CONTAINING A SATURABLE CORE WHICH REMAINS UNSATURATED DURING NORMAL CURRENT FLOW; AN ALTERNATING CURRENT WINDING ALSO ON SAID CORE AND CONNECTED IN SERIES BETWEEN A SOURCE OF ALTERNATING CURRENT POWER AND A RECTIFIER; AND COUPLING MEANS BETWEEN THE DIRECT TERMINALS OF SAID RECTIFIER AND THE PASSING IMPEDANCE FOR INCREASING THE IMPEDANCE VALUE WHEN A CURRENT GREATER THAN A PREDETERMINED VALUE IS SENT THROUGH SAID CONTROL WINDING.
References Cited (Backward Citations)
US2697813A
Cited
US2892155A
Cited
US2910626A
Cited
US2912635A
Cited
US2963637A
Cited
US3058034A
Cited
US2925548A
Cited
US3076925A
Cited
US3098192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |