US3271558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectral method for monitoring atmospheric contamination of inert-gas welding shields
Assignee: Individual
•
Filing: 1965-02-19
•
Granted: 1966-09-06
•
Expires: 1985-02-19
Abstract
No abstract record available.
Inventors
- 👤 Billy K Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:03
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
THE METHOD OF MONITORING AND CONTROLLING AN ARC WELDING SYSTEM, COMPRISING THE STEPS OF: (A) POSITIONING THE WELDING MEANS OF SAID WELDING SYSTEM ABOVE THE WORK PIECE TO BE WELDED; (B) APPLYING AN ELECTRICAL POTENTIAL BETWEEN SAID WELDING MEANS AND SAID WORK PIECE FOR ESTABLISHING A WELDING ARC OF SUCH INTENSITY THAT THE FOREIGN MATERIALS PRESENT WITHIN THE WELDING ZONE ARE BROUGHT TO A GLOWING STATE; (C) SPECTROSCOPICALLY ANALYZING SAID GLOWING MATERIALS AS THE WELDING PROCESS PROGRESSES FOR THE PRESENCES OF CONTAMINATING MATERIAL THAT WOULD ADVERSELY AFFECT THE QUALITY OF THE WELD BEAD BEING FORMED; AND (D) APPLYING THE INFORMATION DERIVED FROM SAID SPECTROSCOPIC ANALYSIS TO THE CONTROL CIRCUIT OF SAID WELDING SYSTEM FOR CONTROLLING THE WELDING PROCESS SO THAT A SUITABLE WELD BEAD IS CONTINUOUSLY FORMED.
Claim 2
Independent Claim
127 words
THE METHOD OF MONITORING AND CONTROLLING AN ARC WELDING SYSTEM, COMPRISING THE STEPS OF: (A) POSITIONING THE WELDING MEANS OF SAID WELDING SYSTEM ABOVE THE WORK PIECE TO BE WELDED; (B) APPLYING AN ELECTRICAL POTENTIAL BETWEEN SAID WELDING MEANS AND SAID WORK PIECE FOR ESTABLISHING A WELDING ARC OF SUCH INTENSITY THAT THE FOREIGN MATERIALS PRESENT WITHIN THE WELDING ZONE ARE BROUGHT TO A GLOWING STATE; (C) SPECTROSCOPICALLY ANALYZING SAID GLOWING MATERIALS AS THE WELDING PROCESS PROGRESSES FOR THE PRESENCES OF CONTAMINATING MATERIAL THAT WOULD ADVERSELY AFFECT THE QUALITY OF THE WELD BEAD BEING FORMED; AND (D) APPLYING THE INFORMATION DERIVED FROM SAID SPECTROSCOPIC ANALYSIS TO THE CONTROL CIRCUIT OF SAID WELDING SYSTEM FOR CONTROLLING THE WELDING PROCESS SO THAT A SUITABLE WELD BEAD IS CONTINUOUSLY FORMED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |