US3112437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse generating circuit
Assignee: Robotron Corp
•
Filing: 1960-10-07
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Granted: 1963-11-26
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Expires: 1980-10-07
Abstract
No abstract record available.
Inventors
- 👤 Stuart C Rockafellow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:01
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/26; H; H02; H02H; H02H9/00; H02H9/04; H03; H03K; H03K17/00; H03K17/51; H03K17/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A PULSE GENERATING CIRCUIT INCLUDING AN ALTERNATING SOURCE, AN INDUCTANCE, A CAPACITANCE AND A SWITCH ALL IN SERIES WITH EACH OTHER, THE SWITCH BEING RENDERED CONDUCTIVE BY PHASE SHIFT CIRCUITRY WHOSE DEGREE OF PHASE SHIFTING IS RESPONSIVE TO THE MAGNITUDE OF A POTENTIAL PLACED ACROSS A SELECTED PORTION THEREOF, THE IMPROVEMENT WHICH COMPRISES A VOLTAGE LIMITING CIRCUIT FOR CONTROLLING THE VOLTAGE ACROSS THE CAPACITOR COMPRISING IN COMBINATION: MEANS INCLUDING A RECTIFIER CONNECTED AROUND THE CAPACITOR ACROSS WHICH THE VOLTAGE DROP IS TO BE LIMITED FOR PROVIDING AT A PAIR OF TERMINALS A D.C. CONTROL POTENTIAL PROPORTIONAL TO THE POTENTIAL EXISTING AT ANY GIVEN INSTANT ACROSS SAID CAPACITOR; A SOURCE OF CONSTANT D.C. VOLTAGE AND MEANS APPLYING SAME IN ONE POLARITY ACROSS SAID SELECTED PORTION OF SAID PHASE SHIFT CIRCUITRY AND MEANS APPLYING SAID CONTROL POTENTIAL ACROSS SAID SELECTED PORTION IN OPPOSITION TO SAID CONSTANT POTENTIAL.
Claim 2
Dependent Claim
146 words
IN A PULSE GENERATING CIRCUIT INCLUDING AN ALTERNATING SOURCE, AN INDUCTANCE, A CAPACITANCE AND A SWITCH ALL IN SERIES WITH EACH OTHER, THE SWITCH BEING RENDERED CONDUCTIVE BY PHASE SHIFT CIRCUITRY WHOSE DEGREE OF PHASE SHIFTING IS RESPONSIVE TO THE MAGNITUDE OF A POTENTIAL PLACED ACROSS A SELECTED PORTION THEREOF, THE IMPROVEMENT WHICH COMPRISES A VOLTAGE LIMITING CIRCUIT FOR CONTROLLING THE VOLTAGE ACROSS THE CAPACITOR COMPRISING IN COMBINATION: MEANS INCLUDING A RECTIFIER CONNECTED AROUND THE CAPACITOR ACROSS WHICH THE VOLTAGE DROP IS TO BE LIMITED FOR PROVIDING AT A PAIR OF TERMINALS A D.C. CONTROL POTENTIAL PROPORTIONAL TO THE POTENTIAL EXISTING AT ANY GIVEN INSTANT ACROSS SAID CAPACITOR; A SOURCE OF CONSTANT D.C. VOLTAGE AND MEANS APPLYING SAME IN ONE POLARITY ACROSS SAID SELECTED PORTION OF SAID PHASE SHIFT CIRCUITRY AND MEANS APPLYING SAID CONTROL POTENTIAL ACROSS SAID SELECTED PORTION IN OPPOSITION TO SAID CONSTANT POTENTIAL.
References Cited (Backward Citations)
US2207577A
Cited
US2458644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |