Patent US3143668A successfully refreshed from Google Patents.
US3143668A
Expired / Lapsed
US
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Power saving switch driver system
Assignee: Individual
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Filing: 1962-07-12
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Granted: 1964-08-04
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Expires: 1982-07-12
Abstract
No abstract record available.
Inventors
- 👤 Loy H Bloodworth
- 👤 Kenneth E Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:39
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/80; H03K17/56; H03K17/60; H03K17/62; H03K17/6285; H03K17/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A POWER SAVING SWITCH DRIVER SYSTEM COMPRISING: A PLURALITY OF SWITCH DRIVERS, A BUS BAR, A PLURALITY OF SWITCH COILS CONNECTED BETWEEN EACH OF SAID SWITCH DRIVERS AND SAID BUS BAR, A SOURCE OF LOW VOLTAGE CONNECTED TO SAID BUS BAR, A SOURCE OF HIGH VOLTAGE, AND SWITCHING MEANS FOR SIMULTANEOUSLY CONNECTING SAID SOURCE OF HIGH VOLTAGE TO SAID BUS BAR AND DISCONNECTING SAID SOURCE OF LOW VOLTAGE WHEN ANY ONE OF SAID SWITCH DRIVERS IN ENERGIZED, SAID SWITCHING MEANS COMPRISING A TRANSFORMER HAVING PRIMARY AND SECONDARY WINDINGS AND AN N-P-N TRANSISTOR HAVING BASE, EMITTER, AND COLLECTOR ELECTRODES, ONE END OF SAID PRIMARY WINDING BEING CONNECTED TO SAID BUS BAR AND THE OTHER END OF SAID PRIMARY WINDING BEING CONNECTED THROUGH A RESISTANCE ELEMENT TO SAID COLLECTOR ELECTRODE, ONE END OF SAID SECONDARY WINDING BEING CONNECTED TO SAID BASE ELECTRODE AND THE OTHER END OF SAID SECONDARY WINDING BEING CONNECTED TO A BIASING VOLTAGE SOURCE, AND SAID EMITTER ELECTRODE BEING CONNECTED TO SAID SOURCE OF HIGH VOLTAGE.
Claim 2
Dependent Claim
167 words
A POWER SAVING SWITCH DRIVER SYSTEM COMPRISING: A PLURALITY OF SWITCH DRIVERS, A BUS BAR, A PLURALITY OF SWITCH COILS CONNECTED BETWEEN EACH OF SAID SWITCH DRIVERS AND SAID BUS BAR, A SOURCE OF LOW VOLTAGE CONNECTED TO SAID BUS BAR, A SOURCE OF HIGH VOLTAGE, AND SWITCHING MEANS FOR SIMULTANEOUSLY CONNECTING SAID SOURCE OF HIGH VOLTAGE TO SAID BUS BAR AND DISCONNECTING SAID SOURCE OF LOW VOLTAGE WHEN ANY ONE OF SAID SWITCH DRIVERS IN ENERGIZED, SAID SWITCHING MEANS COMPRISING A TRANSFORMER HAVING PRIMARY AND SECONDARY WINDINGS AND AN N-P-N TRANSISTOR HAVING BASE, EMITTER, AND COLLECTOR ELECTRODES, ONE END OF SAID PRIMARY WINDING BEING CONNECTED TO SAID BUS BAR AND THE OTHER END OF SAID PRIMARY WINDING BEING CONNECTED THROUGH A RESISTANCE ELEMENT TO SAID COLLECTOR ELECTRODE, ONE END OF SAID SECONDARY WINDING BEING CONNECTED TO SAID BASE ELECTRODE AND THE OTHER END OF SAID SECONDARY WINDING BEING CONNECTED TO A BIASING VOLTAGE SOURCE, AND SAID EMITTER ELECTRODE BEING CONNECTED TO SAID SOURCE OF HIGH VOLTAGE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |