US3147362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite consumable electrode containing emissive compounds and method of manufacture
Assignee: AO Smith Corp
•
Filing: 1960-08-01
•
Granted: 1964-09-01
•
Expires: 1980-08-01
Abstract
No abstract record available.
Inventors
- 👤 Paul W Ramsey
- 👤 Michael W Zimmermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:58
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/40; B23K35/406; Y; Y10; Y10S; Y10S29/00; Y10S29/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A COMPOSITE METAL ELECTRODE FOR ELECTRIC ARC WELDING COMPRISING, A CONTINUOUS OUTER METAL SHEATH, AN INNER LAMINAR, MULTI-STRAND CORE CONFINED INSIDE SAID OUTER METAL SHEATH AND SUBSTANTIALLY SEALED THEREBY TO PROTECT SAID CORE FROM THE ATMOSPHERE, AND AN ELECTRON EMISSIVE MATERIAL UNIFORMLY DISPOSED THROUGHOUT SAID INNER LAMINAR CORE, SAID METAL SHEATH AND INNER LAMINAR CORE BEING EXTRUDED TOGETHER FROM A COMPOSITE BILET COMPRISING A TUBULAR MEMBER CONTAINING METAL SCRAPS COATED WITH EMISSIVE MATERIALS.
Claim 2
Dependent Claim
73 words
A COMPOSITE METAL ELECTRODE FOR ELECTRIC ARC WELDING COMPRISING, A CONTINUOUS OUTER METAL SHEATH, AN INNER LAMINAR, MULTI-STRAND CORE CONFINED INSIDE SAID OUTER METAL SHEATH AND SUBSTANTIALLY SEALED THEREBY TO PROTECT SAID CORE FROM THE ATMOSPHERE, AND AN ELECTRON EMISSIVE MATERIAL UNIFORMLY DISPOSED THROUGHOUT SAID INNER LAMINAR CORE, SAID METAL SHEATH AND INNER LAMINAR CORE BEING EXTRUDED TOGETHER FROM A COMPOSITE BILET COMPRISING A TUBULAR MEMBER CONTAINING METAL SCRAPS COATED WITH EMISSIVE MATERIALS.
References Cited (Backward Citations)
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Cited
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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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |