US2583575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding machine
Assignee: Individual
•
Filing: 1947-08-09
•
Granted: 1952-01-29
•
Expires: 1967-08-09
Abstract
No abstract record available.
Inventors
- 👤 Casson Ernest Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:49
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/16; B23K11/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A SPOT WELDING MACHINE FOR UNITING FUSIBLE SHEET METAL PIECES, WHICH ARE SUPERPOSITIONED TO EACH OTHER TO FORM, RESPECTIVELY, OUTER WORK PIECES AND AN INTERMEDIATE WORK PIECE HAVING A PERFORATION; COMPRISING ANNULAR HOLDING MEANS FOR PRESSING SAID WORK PIECES AT THE LOCATION OF ELECTRODES FOR APPLYING ELECTRIC HEAT TO AND DEFORMING SAID OUTER WORK PIECES TOGEHTER, ANNULAR SAID PERFORATION OF SAID INTERMEDIATE WORK PIECE TO THEREBY OBTAIN DENTS IN SAID OUTER WORK PIECES FOR CONTACT WITH EACH OTHER IN SAID PERFORATION, SPOT WELDING ELECTRODES FOR APPLYING WELDING HEAT TO SAID OUTER WORK PIECES AT THE LOCATION OF SAID DENTS, GUIDE MEAND OPERATIVELY CONNECTED TO SAID HOLDING MEANS, SAID ANNULAR ELECTRODES, AND SAID
Claim 2
Dependent Claim
112 words
A SPOT WELDING MACHINE FOR UNITING FUSIBLE SHEET METAL PIECES, WHICH ARE SUPERPOSITIONED TO EACH OTHER TO FORM, RESPECTIVELY, OUTER WORK PIECES AND AN INTERMEDIATE WORK PIECE HAVING A PERFORATION; COMPRISING ANNULAR HOLDING MEANS FOR PRESSING SAID WORK PIECES AT THE LOCATION OF ELECTRODES FOR APPLYING ELECTRIC HEAT TO AND DEFORMING SAID OUTER WORK PIECES TOGEHTER, ANNULAR SAID PERFORATION OF SAID INTERMEDIATE WORK PIECE TO THEREBY OBTAIN DENTS IN SAID OUTER WORK PIECES FOR CONTACT WITH EACH OTHER IN SAID PERFORATION, SPOT WELDING ELECTRODES FOR APPLYING WELDING HEAT TO SAID OUTER WORK PIECES AT THE LOCATION OF SAID DENTS, GUIDE MEAND OPERATIVELY CONNECTED TO SAID HOLDING MEANS, SAID ANNULAR ELECTRODES, AND SAID
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |