US3249795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic degaussing circuit for color receivers
Assignee: Admiral Corp
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Filing: 1964-08-31
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Granted: 1966-05-03
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Expires: 1984-08-31
Abstract
No abstract record available.
Inventors
- 👤 Dietch Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:30
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN COMBINATION WITH A COLOR TELEVISION RECEIVER HAVING A PICTURE TUBE INCLUDING PERMEABLE MATERIAL SUSCEPTIBLE TO EXTERNAL MAGNETIC FIELDS; POWER SUPPLY MEANS INCLUDING RECTIFYING MEANS CONNECTED TO A SOURCE OF A.C. POTENTIAL; DEMAGNETIZING COIL MEANS MOUNTED IN DEMAGNETIZING RELATIONSHIP ADJACENT TO SAID PICTURE TUBE AND SERIALLY CONNECTED BETWEEN SAID POWER SUPPLY MEANS AND SAID A.C. SOURCE; NORMALLY OPEN CONTACT MEANS CONNECTED IN PARALLEL WITH SAID COIL MEANS; SAID POWER SUPPLY MEANS, UPON CONNECTION TO SAID SOURCE OF A.C. POTENTIAL, EXPERIENCING AN INRUSH CURRENT CHARACTERIZED BY AN INITIALLY LARGE AMPLITUDE, SAID INRUSH CURRENT EXPONENTIALLY DECAYING TOWARD A MINIMUM VALUE WHEREBY SAID COIL MEANS EXPERIENCE A DECAYING A.C. CURRENT FOR DEMAGNETIZATION
Claim 2
Dependent Claim
109 words
IN COMBINATION WITH A COLOR TELEVISION RECEIVER HAVING A PICTURE TUBE INCLUDING PERMEABLE MATERIAL SUSCEPTIBLE TO EXTERNAL MAGNETIC FIELDS; POWER SUPPLY MEANS INCLUDING RECTIFYING MEANS CONNECTED TO A SOURCE OF A.C. POTENTIAL; DEMAGNETIZING COIL MEANS MOUNTED IN DEMAGNETIZING RELATIONSHIP ADJACENT TO SAID PICTURE TUBE AND SERIALLY CONNECTED BETWEEN SAID POWER SUPPLY MEANS AND SAID A.C. SOURCE; NORMALLY OPEN CONTACT MEANS CONNECTED IN PARALLEL WITH SAID COIL MEANS; SAID POWER SUPPLY MEANS, UPON CONNECTION TO SAID SOURCE OF A.C. POTENTIAL, EXPERIENCING AN INRUSH CURRENT CHARACTERIZED BY AN INITIALLY LARGE AMPLITUDE, SAID INRUSH CURRENT EXPONENTIALLY DECAYING TOWARD A MINIMUM VALUE WHEREBY SAID COIL MEANS EXPERIENCE A DECAYING A.C. CURRENT FOR DEMAGNETIZATION
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |