Patent US3924092A successfully refreshed from Google Patents.
US3924092A
Expired / Lapsed
US
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Method and apparatus for cladding a base metal
Assignee: Westinghouse Electric Corp
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Filing: 1974-06-14
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Granted: 1975-12-02
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Expires: 1994-06-14
Abstract
Abstract A water cooled non-consumable electrode having a field winding associated therewith is utilized to produce an arc, which plays over the tip and produces an enlarged molten pool into which a ribbon or multiple wires of cladding metal are feed under an inert gas blanket. The electrode generally moves over the base metal to produce uniform overlapping bands of cladding metal, which overlays the base metal and is integrally bonded thereto.
Inventors
- 👤 Gerald G Lessmann
- 👤 Albert R Vaia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:32
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/06; B23K9/073; B23K9/0737; B23K9/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
152 words
Apparatus for overlaying a base metal with overlapping bands of cladding material which are integrally bonded thereto, said apparatus comprising an electrode having a non-consumable tip; cooling means and means for generating a magnetic field disposed within said non-consumable tip; means for positioning said electrode with respect to said base metal to produce a gap between the base metal and the tip of the electrode; means for producing an arc between the tip and said base metal to form a molten surface adjacent said tip; means for supplying cladding metal to the vicinity of said arc and said molten surface at a controlled rate; means for providing a blanket of a suitable gas covering said pool and arc; and means for relatively moving said electrode with respect to said metal in such a manner as to produce overlapping bands of cladding metal which overlays the base metal and are integrally bonded thereto.
Claim 2
Dependent Claim
152 words
Apparatus for overlaying a base metal with overlapping bands of cladding material which are integrally bonded thereto, said apparatus comprising an electrode having a non-consumable tip; cooling means and means for generating a magnetic field disposed within said non-consumable tip; means for positioning said electrode with respect to said base metal to produce a gap between the base metal and the tip of the electrode; means for producing an arc between the tip and said base metal to form a molten surface adjacent said tip; means for supplying cladding metal to the vicinity of said arc and said molten surface at a controlled rate; means for providing a blanket of a suitable gas covering said pool and arc; and means for relatively moving said electrode with respect to said metal in such a manner as to produce overlapping bands of cladding metal which overlays the base metal and are integrally bonded thereto.
Claim 3
Dependent Claim
30 words
Apparatus as set forth in claim 1, and further comprising means for varying the gap between the base metal and the electrode to maintain a generally constant arc voltage therebetween.
Claim 4
Dependent Claim
39 words
Apparatus as set forth in claim 1, wherein the means for supplying cladding material supplies a continuous strip of material and further comprises means for heating the strip of cladding material as the cladding material approaches the base metal.
Claim 5
Dependent Claim
55 words
Apparatus as set forth in claim 1, and further comprising means subtending the electrode for producing a magnetic field, said magnetic field producing means cooperating with the first mentioned magnetic field producing means associated with the electrode to produce overlapping uniform bands of cladding material which overlay and are integrally bonded to the base metal.
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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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |