Patent US3610862A successfully refreshed from Google Patents.
US3610862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for resistance welding utilizing application of high pressure
Assignee: Continental Can Co Inc
•
Filing: 1969-01-31
•
Granted: 1971-10-05
•
Expires: 1989-01-31
Abstract
Abstract A method and apparatus are disclosed herein for electrical resistance welding wherein a high pressure is applied by the welding electrodes to the overlapped portions of metallic blanks concurrently as a high current is supplied to the electrodes.
Inventors
- 👤 Paul M Erlandson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:48
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/06; B23K11/061; B23K11/062; B23K11/063; B23K11/24
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
89 words
A method for high-quality resistance welding of individual cylindrically formed metallic blanks having overlapped edge portions serially pAssing between and in contact with a pair of spaced welding electrodes comprising the steps of applying a force to said electrodes for transmitting a high pressure to said overlapped edge portions serially passing in contact therewith, and applying a current to said electrodes during application of said force of a magnitude sufficient to maintain a current density of approximately 1 X 106 to approximately 5 X 106 amperes per square inch.
Claim 2
Independent Claim
89 words
A method for high-quality resistance welding of individual cylindrically formed metallic blanks having overlapped edge portions serially pAssing between and in contact with a pair of spaced welding electrodes comprising the steps of applying a force to said electrodes for transmitting a high pressure to said overlapped edge portions serially passing in contact therewith, and applying a current to said electrodes during application of said force of a magnitude sufficient to maintain a current density of approximately 1 X 106 to approximately 5 X 106 amperes per square inch.
Claim 3
Dependent Claim
22 words
The method according to claim 1 wherein the pressure applied is in the range of 80,000 to 100,000 pounds per square inch.
References Cited (Backward Citations)
US1252146A
Cited
US2629806A
Cited
US2864933A
Cited
US2957975A
Cited
US3092715A
Cited
US3288979A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |