US3204173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc welder load control
Assignee: Mcculloch Corp
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Filing: 1962-07-26
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Granted: 1965-08-31
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Expires: 1982-07-26
Abstract
No abstract record available.
Inventors
- 👤 Jackson Robert Vernon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:32
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/14; H02P9/38; B; B23; B23K; B23K9/00; B23K9/10; B23K9/1006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN AN ARC WELDER, THE COMBINATION COMPRISING: (A) A PRIME MOVER; (B) AN INDUCTOR ALTERNATOR HAVING AN ARMATURE WINDING AND A FIELD WINDING, SAID ARMATURE WINDING PROVIDING A FIRST REACTANCE ELEMENT; (C) A SUBSTANTIALLY RESISTIVE LOAD; (D) A COMPENSATING CAPACITOR CONNECTED IN SERIES BETWEEN SAID ARMATURE WINDING AND SAID LOAD, SAID COMPENSATING CAPACITOR PROVIDING A SECOND REACTANCE, THE REACTANCE OF SAID COMPENSATING CAPACITOR AT THE OPERATING FREQUENCY OF SAID ALTERNATOR BEING NOI MORE THAN THE REACTANCE OF SAID ARMATURE WINDING AT SAID OPERATING FREQUENCY; (E) A CONTROL SYSTEM FOR REGULATING THE OUTPUT VOLTAGE OF SAID INDUCTOR ALTERNATOR UNDER VARYING LOAD IMPENDANCE CONDITIONS AND INCLUDING IMPEDANCE MEANS CONNECTED ACROSS ONE OF SAID REACTANCE ELEMENTS AND RESPONSE TO VARIATIONS OF THE VOLTAGES ACROSS SAID ONE OF SAID REACTANCE ELEMENTS;
Claim 2
Dependent Claim
127 words
IN AN ARC WELDER, THE COMBINATION COMPRISING: (A) A PRIME MOVER; (B) AN INDUCTOR ALTERNATOR HAVING AN ARMATURE WINDING AND A FIELD WINDING, SAID ARMATURE WINDING PROVIDING A FIRST REACTANCE ELEMENT; (C) A SUBSTANTIALLY RESISTIVE LOAD; (D) A COMPENSATING CAPACITOR CONNECTED IN SERIES BETWEEN SAID ARMATURE WINDING AND SAID LOAD, SAID COMPENSATING CAPACITOR PROVIDING A SECOND REACTANCE, THE REACTANCE OF SAID COMPENSATING CAPACITOR AT THE OPERATING FREQUENCY OF SAID ALTERNATOR BEING NOI MORE THAN THE REACTANCE OF SAID ARMATURE WINDING AT SAID OPERATING FREQUENCY; (E) A CONTROL SYSTEM FOR REGULATING THE OUTPUT VOLTAGE OF SAID INDUCTOR ALTERNATOR UNDER VARYING LOAD IMPENDANCE CONDITIONS AND INCLUDING IMPEDANCE MEANS CONNECTED ACROSS ONE OF SAID REACTANCE ELEMENTS AND RESPONSE TO VARIATIONS OF THE VOLTAGES ACROSS SAID ONE OF SAID REACTANCE ELEMENTS;
References Cited (Backward Citations)
GB355157A
Cited
US2689327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |