US3308311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transient suppression circuit
Assignee: Collins Radio Co
•
Filing: 1964-01-21
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Granted: 1967-03-07
•
Expires: 1984-01-21
Abstract
No abstract record available.
Inventors
- 👤 Hilmer I Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:23
CPC Classifications
H; H02; H02H; H02H9/00; H02H9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A TRANSIENT SUPPRESSION CIRCUIT FOR A POWER SUPPLY COMPRISING RECTIFYING MEANS RECEIVING ALTERNATING CURRENT, A FILTER CONNECTED TO THE RECTIFYING MEANS TO SMOOTH THE RECTIFIED CURRENT, SAID FILTER HAVING A CHOKE, AND BACK-TOBACK DIODES CONNECTED ACROSS SAID CHOKE, THE BREAKDOWN VOLTAGE OF SAID DIODES SLIGHTLY EXCEEDING THE DESIRED MAXIMUM VOLTAGE ACROSS SAID CHOKE SO THAT SAID DIODES LIMIT THE VOLTAGE ACROSS THE CHOKE TO THE OPERATING RANGE OF SAID CHOKE.
Claim 2
Dependent Claim
70 words
A TRANSIENT SUPPRESSION CIRCUIT FOR A POWER SUPPLY COMPRISING RECTIFYING MEANS RECEIVING ALTERNATING CURRENT, A FILTER CONNECTED TO THE RECTIFYING MEANS TO SMOOTH THE RECTIFIED CURRENT, SAID FILTER HAVING A CHOKE, AND BACK-TOBACK DIODES CONNECTED ACROSS SAID CHOKE, THE BREAKDOWN VOLTAGE OF SAID DIODES SLIGHTLY EXCEEDING THE DESIRED MAXIMUM VOLTAGE ACROSS SAID CHOKE SO THAT SAID DIODES LIMIT THE VOLTAGE ACROSS THE CHOKE TO THE OPERATING RANGE OF SAID CHOKE.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |