US2876330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inert gas shielded metal arc cladding process
Assignee: Union Carbide Corp
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Filing: 1957-02-18
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Granted: 1959-03-03
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Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Reinhardt Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:57
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/04; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
INERT GAS SHIELDED METAL ARC CLADDING PROCESS FOR DEPOSITING A LAYER OF COPPER SURFACING ONTO THE SURFACE OF A WORKPIECE OF STEEL, WHICH COMPRISES STRIKING AN ARC BETWEEN A TRAILIN POSITVE COPPER WIRE ELECTRODE AND A LEADING NEGATIVE COPPER WIRE ELECTRODE IN SERIES ARRANGEMENT SPACED APART TO CONSUME THE TRAILING POSITIVE COPPER ELECTRODE IN A REVERSE POLARITY ARC AND TO CONSUME THE LEADING NEGATIVE ELECTRODE IN A STRAIGHT POLARITY ARC, PASSING A STREAM OF SHIELDING GAS OVER THE COPPER ELECTRODES TO SHIELD THEIR ARCS, MAINTAINING SAID ARCS A PREDETERMINED DISTANCE FROM A STEEL WORK SURFACE TO DEPOSIT THEREON COPPER CONSUMED FROM SAID WIRE ELECTRODES TO FORM A COPPER CLADDING PUDDLE, AND ADVANCING SAID LEADING NEGATIVE COPPER WIRE ELECTRODE, SAID TRAILING POSITIVE COPPER WIRE ELECTRODE, SAID STREAM OF SHIELDING GAS AND SAID COPPER CLADDING PUDDLE ALONG A LINE OF CLADDING ON SAID STEEL WORK SURFACE TO APPLY A LAYER OF COPPER CLADDING ONTO SAID STEEL WORK SURFACE.
Claim 2
Dependent Claim
156 words
INERT GAS SHIELDED METAL ARC CLADDING PROCESS FOR DEPOSITING A LAYER OF COPPER SURFACING ONTO THE SURFACE OF A WORKPIECE OF STEEL, WHICH COMPRISES STRIKING AN ARC BETWEEN A TRAILIN POSITVE COPPER WIRE ELECTRODE AND A LEADING NEGATIVE COPPER WIRE ELECTRODE IN SERIES ARRANGEMENT SPACED APART TO CONSUME THE TRAILING POSITIVE COPPER ELECTRODE IN A REVERSE POLARITY ARC AND TO CONSUME THE LEADING NEGATIVE ELECTRODE IN A STRAIGHT POLARITY ARC, PASSING A STREAM OF SHIELDING GAS OVER THE COPPER ELECTRODES TO SHIELD THEIR ARCS, MAINTAINING SAID ARCS A PREDETERMINED DISTANCE FROM A STEEL WORK SURFACE TO DEPOSIT THEREON COPPER CONSUMED FROM SAID WIRE ELECTRODES TO FORM A COPPER CLADDING PUDDLE, AND ADVANCING SAID LEADING NEGATIVE COPPER WIRE ELECTRODE, SAID TRAILING POSITIVE COPPER WIRE ELECTRODE, SAID STREAM OF SHIELDING GAS AND SAID COPPER CLADDING PUDDLE ALONG A LINE OF CLADDING ON SAID STEEL WORK SURFACE TO APPLY A LAYER OF COPPER CLADDING ONTO SAID STEEL WORK SURFACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |