US3404310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deflection coil driving circuit
Assignee: TDK Micronas GmbH
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Filing: 1966-03-02
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Granted: 1968-10-01
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Expires: 1986-03-02
Abstract
No abstract record available.
Inventors
- 👤 Edward L Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:32
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/60; H03K4/62; H03K4/68; H03K4/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A DEFLECTION SYSTEM FOR AN ELECTRON BEAM, A DRIVING CIRCUIT FOR MAGNETIC DEFLECTION COIL MEANS COMPRISING: A SOURCE OF PERIODIC SWEEP VOLTAGE SIGNALS HAVING ALTERNATE SCANNING PERIODS AND RETRACE PERIODS; FIRST MEANS FOR COUPLING SAID COIL MEANS TO SAID SOURCE FOR ENERGIZATION THEREBY DURING SAID SCANNING PERIODS AND FOR DISCONNECTING SAID COIL MEANS FROM SAID SOURCE DURING SAID RETRACE PERIODS; A CAPACITOR; AND SECOND MEANS FOR COUPLING SAID CAPACITOR TO SAID COIL MEANS FOR CHARGING SAID CAPACITOR THEREBY DISSIPATING THE ENERGY STORED IN SAID COIL MEANS AND FOR DISCHARGING SAID CAPACITOR THEREBY SUPPLYING SUBSTANTIALLY EQUAL AND OPPOSITE ENERGY TO SAID COIL MEANS DURING SAID RETRACE PERIODS, SAID SECOND COUPLING MEANS DISCONNECTING SAID CAPACITOR FROM SAID COIL MEANS DURING SAID SCANNING PERIODS.
Claim 2
Dependent Claim
122 words
IN A DEFLECTION SYSTEM FOR AN ELECTRON BEAM, A DRIVING CIRCUIT FOR MAGNETIC DEFLECTION COIL MEANS COMPRISING: A SOURCE OF PERIODIC SWEEP VOLTAGE SIGNALS HAVING ALTERNATE SCANNING PERIODS AND RETRACE PERIODS; FIRST MEANS FOR COUPLING SAID COIL MEANS TO SAID SOURCE FOR ENERGIZATION THEREBY DURING SAID SCANNING PERIODS AND FOR DISCONNECTING SAID COIL MEANS FROM SAID SOURCE DURING SAID RETRACE PERIODS; A CAPACITOR; AND SECOND MEANS FOR COUPLING SAID CAPACITOR TO SAID COIL MEANS FOR CHARGING SAID CAPACITOR THEREBY DISSIPATING THE ENERGY STORED IN SAID COIL MEANS AND FOR DISCHARGING SAID CAPACITOR THEREBY SUPPLYING SUBSTANTIALLY EQUAL AND OPPOSITE ENERGY TO SAID COIL MEANS DURING SAID RETRACE PERIODS, SAID SECOND COUPLING MEANS DISCONNECTING SAID CAPACITOR FROM SAID COIL MEANS DURING SAID SCANNING PERIODS.
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) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |