US3242312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically controlled d. c. power source
Assignee: ALLOY RODS Inc KAREN LANE & WILSON AVE A CORP OF
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Filing: 1963-07-02
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Granted: 1966-03-22
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Expires: 1983-07-02
Abstract
No abstract record available.
Inventors
- 👤 Dennis G Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:24
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/10; B23K9/1006; B23K9/1012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
APPARATUS FOR DIRECT CURRENT ARC WELDING APPARATUS COMPRISING, IN COMBINATION, (A) AN ADJUSTABLE DIRECT CURRENT POWER SOURCE HAVING OUTPUT LINES SUPPLYING A DIRECT CURRENT AS A SUITABLE VOLTAGE AND CURRENT TO AN ARC, AND (B) A SATURABLE REACTANCE CONTROL UNIT HAVING A PAIR OF LOAD WINDINGS REVERSIBLY WOUND ON A CONTINUOUS MAGNETIC LOOP MEMBER AND CONNECTED IN SERIES WITH EACH OTHER AND THE OUTPUT LINES FOR CONNECTION IN SERIES WITH THE ARC AND SATURATING CONTROL WINDINGS ADAPTED TO BE CONNECTED TO A DIRECT CURRENT SOURCE, THE ENERGIZATION OF THE CONTROL WINDINGS DETERMINING THE ARC RESPONSE PERIOD OF THE ARC WELDING SYSTEM.
Claim 2
Dependent Claim
101 words
APPARATUS FOR DIRECT CURRENT ARC WELDING APPARATUS COMPRISING, IN COMBINATION, (A) AN ADJUSTABLE DIRECT CURRENT POWER SOURCE HAVING OUTPUT LINES SUPPLYING A DIRECT CURRENT AS A SUITABLE VOLTAGE AND CURRENT TO AN ARC, AND (B) A SATURABLE REACTANCE CONTROL UNIT HAVING A PAIR OF LOAD WINDINGS REVERSIBLY WOUND ON A CONTINUOUS MAGNETIC LOOP MEMBER AND CONNECTED IN SERIES WITH EACH OTHER AND THE OUTPUT LINES FOR CONNECTION IN SERIES WITH THE ARC AND SATURATING CONTROL WINDINGS ADAPTED TO BE CONNECTED TO A DIRECT CURRENT SOURCE, THE ENERGIZATION OF THE CONTROL WINDINGS DETERMINING THE ARC RESPONSE PERIOD OF THE ARC WELDING SYSTEM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |