Method of making can bodies from sheet metal
US5997232A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 21, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Jan 21, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/0846
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of making can bodies from sheet metal for manufacturing cans includes the steps of: feeding and superimposing two sheet metal strips rolled to finished thickness, joining the superimposed sheet metal strips by a plurality of connecting welded seams running continuously in the longitudinal direction of the strip, with a spacing from one another in the transverse direction of the strip corresponding to half the can body diameter, through continuous passage of the superimposed sheet metal strips through a welding device with a plurality of welding heads disposed with corresponding spacings from one another, cutting the sheet metal strips welded together along the middle of each connecting welded seam to create a plurality of flat tubes lying beside one another, optionally rolling up the flat tubes for intermediate storage and/or transport, unrolling the optionally rolled-up flat tubes, cutting the flat tubes transversely into flat tube sections whose length corresponds to approximately the can height, and spreading the individual flat tube section into a can body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.