US2569368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joining metal parts
Assignee: Champion Paper and Fibre Co
•
Filing: 1946-01-08
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Granted: 1951-09-25
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Expires: 1966-01-08
Abstract
No abstract record available.
Inventors
- 👤 Donald B Bradner
- 👤 Jr William B Stoddard
- 👤 Philip S Blickensderfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:24
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/02; B; B23; B23K; B23K28/00; B23K28/006; C25D1/00; C25D1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
ELECTROLYTIC METHOD OF WELDING TOGETHER EDGES OF SHEET METAL, WHICH COMPRISES: PLACING THE EDGES TO BE JOINED IN PROXIMATE RELATION AND HOLDING THEM FIRMLY, THROUGHOUT THE LENGTH TO BE JOINED, IN THE RELATIVE POSITIONS THEY ARE TO OCCUPY AFTER WELDING; FORMING A TROUGH FOR THE RECEPTION OF WELD METAL AND FILLING THE SPACE BETWEEN SAID EDGES WITH AN ELECTRICAL CONDUCTOR, IN SUCH MANNER THAT SAID ELECTRICAL CONDUCTOR FORMS THE BOTTOM OF SAID TROUGH AND LIES COMPLETELY OUTSIDE THE PLANE OF THE SHEETS, AND SAID TROUGH HAS A WIDTH MUCH GREATER THAN ITS DEPTH, GENTLY SLOPING SIDES AND A SMOOTH CONTINUOUS UNINTERRUPTED ELECTRICALLY CONDUCTING SURFACE THROUGHOUT ITS EXTENT; PREPARING THE SURFACE OF SAID TROUGH SO THAT METAL ELECTROLYTICALLY DEPOSITED THEREON WILL BE STRONGLY ADHERENT TO THE SURFACES TO BE JOINED; THEN ELECTROLYTICALLY DEPOSITING WELD METAL IN SAID TROUGH UNTIL IT HAS AT LEAST REACHED THE LEVEL OF THE UPPER SURFACE OF THE ADJACENT METAL SHEET.
Claim 2
Dependent Claim
154 words
ELECTROLYTIC METHOD OF WELDING TOGETHER EDGES OF SHEET METAL, WHICH COMPRISES: PLACING THE EDGES TO BE JOINED IN PROXIMATE RELATION AND HOLDING THEM FIRMLY, THROUGHOUT THE LENGTH TO BE JOINED, IN THE RELATIVE POSITIONS THEY ARE TO OCCUPY AFTER WELDING; FORMING A TROUGH FOR THE RECEPTION OF WELD METAL AND FILLING THE SPACE BETWEEN SAID EDGES WITH AN ELECTRICAL CONDUCTOR, IN SUCH MANNER THAT SAID ELECTRICAL CONDUCTOR FORMS THE BOTTOM OF SAID TROUGH AND LIES COMPLETELY OUTSIDE THE PLANE OF THE SHEETS, AND SAID TROUGH HAS A WIDTH MUCH GREATER THAN ITS DEPTH, GENTLY SLOPING SIDES AND A SMOOTH CONTINUOUS UNINTERRUPTED ELECTRICALLY CONDUCTING SURFACE THROUGHOUT ITS EXTENT; PREPARING THE SURFACE OF SAID TROUGH SO THAT METAL ELECTROLYTICALLY DEPOSITED THEREON WILL BE STRONGLY ADHERENT TO THE SURFACES TO BE JOINED; THEN ELECTROLYTICALLY DEPOSITING WELD METAL IN SAID TROUGH UNTIL IT HAS AT LEAST REACHED THE LEVEL OF THE UPPER SURFACE OF THE ADJACENT METAL SHEET.
References Cited (Backward Citations)
US1790738A
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US704400A
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GB190406061A
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FR359386A
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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) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |