Patent US2226200A successfully refreshed from Google Patents.
Patent US3051822A successfully refreshed from Google Patents.
US3051822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding with blanket and gas arc-shield
Assignee: Chemetron Corp
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Filing: 1955-03-23
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Granted: 1962-08-28
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Expires: 1975-03-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Bernard
- 👤 Richard A Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:45
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0255; B23K35/0261; B23K35/0266; B23K9/00; B23K9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE PROCESS OF WELDING WITH A VISIBLE ELECTRIC ARC AND CONSUMABLE ELECTRODE, COMPRISING: ESTABLISHING AN ELECTRAIC ARC BETWEEN THE ELECTRODE AND A WORKPIECE; PROVIDING RELATIVE MOVEMENT BETWEEN THE ELECTRODE AND WORKPIECE ALONG A LINE OF WELD; ENCLOSING THE ARC IN A TRANSPARENT SHIELDING MEDIUM FROM A SOURCE SEPARATE FROM THE ELECTRODE TO SHIELD THE ARC FROM SURROUNDING ATMOSPHERE; SAID ELECTRODE CARRYING TO THE ARC REGION A MECHANICAL MIXTURE OF A DEOXIDERZER AND A GRANULAR FORM A GLASSLIKE SLAG MATERIAL PREFUSED TO BE ESSENTIALLY HYDROGEN AND CARBON FREE; AND TRANSFERRING SAID SLAG THROUGH THE ARC TO COMPLETELY COVER THE MOLTEN METAL TRAILING THE ARC WITH A SLAG BLANKET SHIELD.
Claim 2
Dependent Claim
108 words
THE PROCESS OF WELDING WITH A VISIBLE ELECTRIC ARC AND CONSUMABLE ELECTRODE, COMPRISING: ESTABLISHING AN ELECTRAIC ARC BETWEEN THE ELECTRODE AND A WORKPIECE; PROVIDING RELATIVE MOVEMENT BETWEEN THE ELECTRODE AND WORKPIECE ALONG A LINE OF WELD; ENCLOSING THE ARC IN A TRANSPARENT SHIELDING MEDIUM FROM A SOURCE SEPARATE FROM THE ELECTRODE TO SHIELD THE ARC FROM SURROUNDING ATMOSPHERE; SAID ELECTRODE CARRYING TO THE ARC REGION A MECHANICAL MIXTURE OF A DEOXIDERZER AND A GRANULAR FORM A GLASSLIKE SLAG MATERIAL PREFUSED TO BE ESSENTIALLY HYDROGEN AND CARBON FREE; AND TRANSFERRING SAID SLAG THROUGH THE ARC TO COMPLETELY COVER THE MOLTEN METAL TRAILING THE ARC WITH A SLAG BLANKET SHIELD.
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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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |