Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4915562 | Rupturable can member as well as method and apparatus for its production | Werner Urech | 1990-04-10 |
| 4850214 | Method of fabricating a projection for resistance welding | Jurg Opprecht | 1989-07-25 |
| 4795295 | Rupturable can member as well as method and apparatus for its production | Werner Urech | 1989-01-03 |
| 4728766 | Welding machine for welding tongues onto sheet-metal parts | Othmar Stieger, Felix Kramer | 1988-03-01 |
| 4712960 | Openable can body | Werner Urech, Jurg Opprecht | 1987-12-15 |
| 4677271 | Method for electrical resistance-welding and installation for carrying out said method and use of said method in drum manufacture | — | 1987-06-30 |
| 4675489 | Through guide for rounded blanks on a seam welding machine | Othmar Stieger | 1987-06-23 |
| 4662534 | Rupturable can member | Werner Urech | 1987-05-05 |
| 4652720 | Apparatus for the spot welding of coated sheet-metal members | — | 1987-03-24 |
| 4637521 | Openable can body | Werner Urech, Jurg Opprecht | 1987-01-20 |
| 4572937 | Method of electrical resistance roll seam welding with only one electrode wire, machine for performing the process and use of the process | Wolfgang Weil | 1986-02-25 |
| 4536636 | Method and machine for electrical resistance roll seam welding with a single electrode-wire | Wolfgang Weil, Martin Kaul | 1985-08-20 |
| 4495397 | Projection for resistance welding of soft metals | Jurg Opprecht | 1985-01-22 |
| 4417117 | Transporting can bodies for a fully automated resistance welding machine | — | 1983-11-22 |
| 4388891 | Apparatus for applying a protective coating to the welding or solder seam of can bodies | — | 1983-06-21 |
| 4354086 | Automated can resistance welder | — | 1982-10-12 |
| 4332994 | Apparatus for resistance welding of can bodies | — | 1982-06-01 |
| 4249476 | Apparatus for applying a protective coating to the welded seam of a can body or the like | Siegfried Frei | 1981-02-10 |
| 4214140 | Resistance welding machine for seam welding of blanks or the like | — | 1980-07-22 |