Patent US2649528A successfully refreshed from Google Patents.
US2649528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding ends of copper coils
Assignee: New Haven Copper Co
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Filing: 1950-09-27
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Granted: 1953-08-18
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Expires: 1970-09-27
Abstract
No abstract record available.
Inventors
- 👤 Edward H Koenig
- 👤 Chesnavich John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:14
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/035; B23K9/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
THE METHOD OF WELDING THE ENDS OF ELECTROLYTIC COPPER SHEETS WHICH COMPRISES DISPOSING THE EDGES IN JUXTAPOSITION OVER A GROOVE IN A CARBON BAR, PLACING END PIECES AT THE ENDS OF THE CREVICE FORMED BY THE JUXTAPOSED EDGES, HOLDING THE SHEETS IN PROPER RELATIONSHIP, PLACING A COPPER FILLER WIRE ON TOP OF THE JUXTAPOED EDGES OVER SAID CREVICE, DISPOSING A TUNGSTEN ELECTRODE OVER THE FILLER WIRE, APPLYING A DIRECT CURRENT WELDING VOLTAGE ACROSS THE GAP BETWEEN THE TUNGSTEN ELECTRODE AND THE FILLER WIRE, WITH THE POSITIVE POLE APPLIED TO THE TUNGSTEN ELECTRODE, STARTING THE WELD AT ONE END PIECE, PROPELLING THE
Claim 2
Independent Claim
101 words
THE METHOD OF WELDING THE ENDS OF ELECTROLYTIC COPPER SHEETS WHICH COMPRISES DISPOSING THE EDGES IN JUXTAPOSITION OVER A GROOVE IN A CARBON BAR, PLACING END PIECES AT THE ENDS OF THE CREVICE FORMED BY THE JUXTAPOSED EDGES, HOLDING THE SHEETS IN PROPER RELATIONSHIP, PLACING A COPPER FILLER WIRE ON TOP OF THE JUXTAPOED EDGES OVER SAID CREVICE, DISPOSING A TUNGSTEN ELECTRODE OVER THE FILLER WIRE, APPLYING A DIRECT CURRENT WELDING VOLTAGE ACROSS THE GAP BETWEEN THE TUNGSTEN ELECTRODE AND THE FILLER WIRE, WITH THE POSITIVE POLE APPLIED TO THE TUNGSTEN ELECTRODE, STARTING THE WELD AT ONE END PIECE, PROPELLING THE
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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) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |