US3284666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable weld current apparatus having auxiliary arc establishing means
Assignee: Marquette Corp
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Filing: 1964-05-04
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Granted: 1966-11-08
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Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 Frank J Hajicek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:47
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/10; B23K9/1006; B23K9/1043; B23K9/1056; Y; Y10; Y10S; Y10S323/00; Y10S323/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN WELDING APPARATUS, ELECTRODE MEANS TO PROVIDE A WELDING ARC, POWER SUPPLY MEANS ADAPTED TO BE CONNECTED TO A SOURCE OF CYCLICALLY VARYING VOLTAGE FOR SUPPLYING A CYCLICALLY VARYING CURRENT TO SAID ELECTRODE MEANS, CONTROL MEANS FOR SAID POWER SUPPLY MEANS EFFECTIVE TO VARY THE PORTION OF EACH CYCLE OF THE VOLTAGE OF SAID SOURCE DURING WHICH CURRENT IS SUPPLIED TO SAID ELECTRODE MEANS TO VARY THE CURRENT FLOWING IN SAID WELDING ARC, AND AN AUXILIARY POWER SUPPLY MEANS FOR APPLYING TO SAID ELECTRODE MEANS INDEPENDENTLY TO SAID CONTROL MEANS A VOLTAGE SUFFICIENTLY HIGH TO CAUSE INITIAL ESTABLISHMENT OF THE WELDING ARC SO THAT REGARDLESS OF THE SETTING OF SAID CONTROL MEANS, A WELDING ARC WILL BE ESTABLISHED DURING EACH CYCLE.
Claim 2
Dependent Claim
121 words
IN WELDING APPARATUS, ELECTRODE MEANS TO PROVIDE A WELDING ARC, POWER SUPPLY MEANS ADAPTED TO BE CONNECTED TO A SOURCE OF CYCLICALLY VARYING VOLTAGE FOR SUPPLYING A CYCLICALLY VARYING CURRENT TO SAID ELECTRODE MEANS, CONTROL MEANS FOR SAID POWER SUPPLY MEANS EFFECTIVE TO VARY THE PORTION OF EACH CYCLE OF THE VOLTAGE OF SAID SOURCE DURING WHICH CURRENT IS SUPPLIED TO SAID ELECTRODE MEANS TO VARY THE CURRENT FLOWING IN SAID WELDING ARC, AND AN AUXILIARY POWER SUPPLY MEANS FOR APPLYING TO SAID ELECTRODE MEANS INDEPENDENTLY TO SAID CONTROL MEANS A VOLTAGE SUFFICIENTLY HIGH TO CAUSE INITIAL ESTABLISHMENT OF THE WELDING ARC SO THAT REGARDLESS OF THE SETTING OF SAID CONTROL MEANS, A WELDING ARC WILL BE ESTABLISHED DURING EACH CYCLE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |