US3299363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase inverting direct current amplifier circuit
Assignee: Control Data Corp
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Filing: 1963-06-04
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Granted: 1967-01-17
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Expires: 1983-06-04
Abstract
No abstract record available.
Inventors
- 👤 Leo F Slattery
- 👤 Lynn W Gallup
- 👤 Henry W Schoenherr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:39
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/082; H03K19/084; H03K19/0813; H03K3/00; H03K3/02; H03K3/027; H03K3/037; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/2893
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A CIRCUIT ARRANGEMENT CAPABLE OF RAPID SWITCHING ACTION AND OF INVERTING INPUT VOLTAGES COMPRISING: AN INPUT NETWORK INCLUDING A PLURALITY OF NON-LINEAR ELEMENTS CONNECTED IN SERIES; A PHASE INVERTING DIRECT CURRENT AMPLIFIER HAVING ITS INPUT CONNECTED TO ONE POINT IN SAID INPUT NETWORK; A FIRST NEGATIVE FEEDBACK PATH CONDUCTING DIRECT CURRENT FROM SAID AMPLIFIER TO THE INPUT NETWORK WHEN THE OUTPUT VOLTAGE OF THE CIRCUIT REACHES A PREDETERMINED FIRST LEVEL, THUS CONTROLLING THE INPUT CURRENT TO SAID AMPLIFIER AT A VALVE WHICH PREVENTS THE AMPLIFIER FROM SATURATING AND WHICH HOLDS THE OUTPUT VOLTAGE OF THE CIRCUIT AT A FIRST PRESCRIBED LEVEL; AND A SECOND NEGATIVE FEEDBACK PATH CONDUCTING DIRECT CURRENT FROM SAID AMPLIFIER TO THE INPUT NETWORK WHEN THE OUTPUT VOLTAGE OF THE CIRCUIT REACHES
Claim 2
Dependent Claim
125 words
A CIRCUIT ARRANGEMENT CAPABLE OF RAPID SWITCHING ACTION AND OF INVERTING INPUT VOLTAGES COMPRISING: AN INPUT NETWORK INCLUDING A PLURALITY OF NON-LINEAR ELEMENTS CONNECTED IN SERIES; A PHASE INVERTING DIRECT CURRENT AMPLIFIER HAVING ITS INPUT CONNECTED TO ONE POINT IN SAID INPUT NETWORK; A FIRST NEGATIVE FEEDBACK PATH CONDUCTING DIRECT CURRENT FROM SAID AMPLIFIER TO THE INPUT NETWORK WHEN THE OUTPUT VOLTAGE OF THE CIRCUIT REACHES A PREDETERMINED FIRST LEVEL, THUS CONTROLLING THE INPUT CURRENT TO SAID AMPLIFIER AT A VALVE WHICH PREVENTS THE AMPLIFIER FROM SATURATING AND WHICH HOLDS THE OUTPUT VOLTAGE OF THE CIRCUIT AT A FIRST PRESCRIBED LEVEL; AND A SECOND NEGATIVE FEEDBACK PATH CONDUCTING DIRECT CURRENT FROM SAID AMPLIFIER TO THE INPUT NETWORK WHEN THE OUTPUT VOLTAGE OF THE CIRCUIT REACHES
References Cited (Backward Citations)
US3092729A
Cited
US3218472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |