US2883306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode coating process and apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1955-04-15
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Granted: 1959-04-21
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Expires: 1975-04-15
Abstract
No abstract record available.
Inventors
- 👤 George H Cotter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:57
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/40; B23K35/404
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
THE METHOD OF PRODUCING A COATED CONSUMABLE WELDING ELECTRODE PARTICULARLY FOR WELDING IN AN ATMOSPHERE OF SHIELDING GAS WHICH COMPRISES PRODUCING A FINE ROUGHENING ON THE SURFACE OF A CORE WIRE, DEPOSITING A SLIP OF COATING MATERIAL ON SAID SURFACE, SAID SLIP CONSISTING ESSENTIALLY OF AN EMULSION OF THE OXIDES OF CALCIUM, MANGANESE, AND TITANIUM IN WATER, SAID EMULSION HAVING A PH OF THE ORDER OF 12.6 AT ROOM TEMPERATURE; PASSING THE WIRE SO COATED THROUGH DIE MEANS TO COMPRESS SAID COATING INTO THE IRREGULARITIES IN THE SURFACE OF THE WIRE, REMOVING THE EXCESS OF COATING FROM THE SURFACE OF THE WIRE BY DIRECTING AN AIRBLAST SUBSTANTIALLY PARALLEL TO SAID WIRE, AND DRYING THE WIRE SO COATED AT AN ELEVATED TEMPERATURE.
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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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |