US3175160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled current source
Assignee: Intron International Inc
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Filing: 1962-03-15
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Granted: 1965-03-23
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Expires: 1982-03-15
Abstract
No abstract record available.
Inventors
- 👤 Robert H Pintell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:30
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/483; H02M7/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A GENERATOR OF CONTROLLED ALTERNATING CURRENT, COMPRISING A SOURCE OF PERIODIC ELECTRIC SIGNALS, MEANS INCLUDING AT LEAST ONE ADJUSTABLE PHASE SHIFTER CONNECTED TO SAID SOURCE FOR PRODUCING A PLURALITY OF BALANCED OSCILLATIONS OF LIKE FREQUENCY BUT DIFFERENT PHASES, CIRCUIT MEANS FOR COMBINING SAID OSCILLATIONS INTO A SINGLE BALANCED WAVE OF AN AMPLITUDE DEPENDING UPON THE PHASE DIFFERENCE BETWEEN SAID OSCILLATIONS, AND CONTROL MEANS FOR SAID PHASE SHIFTER COUPLED WITH SAID CIRCUIT MEANS FOR ADJUSTING SAID PHASE DIFFERENCE IN A MANNER COMPENSATING FOR CHANGES IN THE AMPLITUDE OF SAID WAVE.
Claim 2
Dependent Claim
89 words
A GENERATOR OF CONTROLLED ALTERNATING CURRENT, COMPRISING A SOURCE OF PERIODIC ELECTRIC SIGNALS, MEANS INCLUDING AT LEAST ONE ADJUSTABLE PHASE SHIFTER CONNECTED TO SAID SOURCE FOR PRODUCING A PLURALITY OF BALANCED OSCILLATIONS OF LIKE FREQUENCY BUT DIFFERENT PHASES, CIRCUIT MEANS FOR COMBINING SAID OSCILLATIONS INTO A SINGLE BALANCED WAVE OF AN AMPLITUDE DEPENDING UPON THE PHASE DIFFERENCE BETWEEN SAID OSCILLATIONS, AND CONTROL MEANS FOR SAID PHASE SHIFTER COUPLED WITH SAID CIRCUIT MEANS FOR ADJUSTING SAID PHASE DIFFERENCE IN A MANNER COMPENSATING FOR CHANGES IN THE AMPLITUDE OF SAID WAVE.
References Cited (Backward Citations)
US2468059A
Cited
US2562694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |