US3596043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of seam welding overlapping workpieces
Assignee: Southern Can Co
•
Filing: 1969-04-11
•
Granted: 1971-07-27
•
Expires: 1989-04-11
Abstract
Abstract A continuous lap seam is welded at the extreme edge by passing it between a pair of roller electrode members each of which carries a continuous length of a wire electrode, the wire interengaging the rollers and having an outer work engaging surface which is substantially flat, thereby providing a welded seam entirely outwardly of the edge of at least one of the lapping portions.
Inventors
- 👤 Anton J Sporri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:18
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/30; B23K11/309
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
The method of seam welding overlapping workpieces by electric resistance welding comprising the steps of providing a pair of relatively adjustable electrode rollers each of which has a peripheral groove, providing a pair of elongated electrodes of indeterminate length having portions cooperatively engaged with the peripheral grooves of said rollers, each of said electrodes having a relatively narrow flat planar face spaced from and generally parallel with the flat planar face of the other electrode and defining a welding gap, placing said overlapping workpieces between and in engagement with said electrodes, one of said electrodes overlapping the edge of one of said workpieces and the other electrode being spaced from the edge of the other workpiece, advancing said workpieces and said electrodes through the welding gap at the same rate while maintaining said one electrode in overlapping relationship with the edge of said one workpiece, and supplying electrical energy to said electrodes so that a current will pass from one electrode through said workpieces to the other electrode to weld the workpieces together along a continuous seam and the edge of said one workpiece will be welded to the other workpiece.
Claim 2
Independent Claim
191 words
The method of seam welding overlapping workpieces by electric resistance welding comprising the steps of providing a pair of relatively adjustable electrode rollers each of which has a peripheral groove, providing a pair of elongated electrodes of indeterminate length having portions cooperatively engaged with the peripheral grooves of said rollers, each of said electrodes having a relatively narrow flat planar face spaced from and generally parallel with the flat planar face of the other electrode and defining a welding gap, placing said overlapping workpieces between and in engagement with said electrodes, one of said electrodes overlapping the edge of one of said workpieces and the other electrode being spaced from the edge of the other workpiece, advancing said workpieces and said electrodes through the welding gap at the same rate while maintaining said one electrode in overlapping relationship with the edge of said one workpiece, and supplying electrical energy to said electrodes so that a current will pass from one electrode through said workpieces to the other electrode to weld the workpieces together along a continuous seam and the edge of said one workpiece will be welded to the other workpiece.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |