US3353071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Ledex Inc
•
Filing: 1964-11-19
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Granted: 1967-11-14
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Expires: 1984-11-19
Abstract
No abstract record available.
Inventors
- 👤 Cable Elvin Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:59
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/722; H03K17/723
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A DEVICE FOR REGULATING THE DELIVERY OF ELECTRICAL ENERGY TO A LOAD, SAID DEVICE INCLUDING, IN COMBINATION: A CONTROLLED RECTIFIER HAVING AN ANODE, A CATHODE AND A CONTROL GATE ELEMENT, CONDUCTOR MEANS TO CONNECT SAID ANODE AND CATHODE IN SERIES WITH SAID LOAD AND WITH A VOLTAGE SOURCE FOR OPERATING SAID LOAD, AND CONTROL CIRCUIT MEANS ADAPTED TO RECEIVE A VOLTAGE TEMPORARILY SUPPLIED THERETO; SAID CONTROL CIRCUIT MEANS INCLUDING A FIRST INDUCTANCE COIL TO RECEIVE SAID TEMPORARILY SUPPLIED VOLTAGE, A SECOND INDUCTANCE COIL INDUCTIVELY COUPLED TO SAID FIRST COIL, AND DISCHARGE CIRCUIT MEANS COUPLING SAID SECOND COIL WITH SAID CONTROL GATE ELEMENT, SAID DISCHARGE CIRCUIT MEANS TRANSMITTING A VOLTAGE PULSE FROM SAID SECOND COIL TO SAID CONTROL GATE ELEMENT UPON REMOVAL OF SAID TEMPORARILY SUPPLIED VOLTAGE.
Claim 2
Independent Claim
126 words
A DEVICE FOR REGULATING THE DELIVERY OF ELECTRICAL ENERGY TO A LOAD, SAID DEVICE INCLUDING, IN COMBINATION: A CONTROLLED RECTIFIER HAVING AN ANODE, A CATHODE AND A CONTROL GATE ELEMENT, CONDUCTOR MEANS TO CONNECT SAID ANODE AND CATHODE IN SERIES WITH SAID LOAD AND WITH A VOLTAGE SOURCE FOR OPERATING SAID LOAD, AND CONTROL CIRCUIT MEANS ADAPTED TO RECEIVE A VOLTAGE TEMPORARILY SUPPLIED THERETO; SAID CONTROL CIRCUIT MEANS INCLUDING A FIRST INDUCTANCE COIL TO RECEIVE SAID TEMPORARILY SUPPLIED VOLTAGE, A SECOND INDUCTANCE COIL INDUCTIVELY COUPLED TO SAID FIRST COIL, AND DISCHARGE CIRCUIT MEANS COUPLING SAID SECOND COIL WITH SAID CONTROL GATE ELEMENT, SAID DISCHARGE CIRCUIT MEANS TRANSMITTING A VOLTAGE PULSE FROM SAID SECOND COIL TO SAID CONTROL GATE ELEMENT UPON REMOVAL OF SAID TEMPORARILY SUPPLIED VOLTAGE.
References Cited (Backward Citations)
US3260898A
Cited
US3286131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |