Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11794266 | Device for welding pipe branches and extensions | — | 2023-10-24 |
| 10537948 | Method and apparatus for shape cutting of a pipe end | — | 2020-01-21 |
| 8667876 | Pipe cutting apparatus | — | 2014-03-11 |
| 6433307 | Device for welding cylindrical workpieces | — | 2002-08-13 |
| 5515710 | Device for flaring out pipes | — | 1996-05-14 |
| 4948101 | Apparatus for making divergent cuts chamfered relative to a cutting surface by means of torch cutting | — | 1990-08-14 |
| 4717124 | Steering mechanism for autogenous cutting torch | — | 1988-01-05 |
| 4503693 | Apparatus for making a hole and a hole-surrounding collar in the side of a pipe | — | 1985-03-12 |
| 4455015 | Steering apparatus for an autogenous cutting torch | — | 1984-06-19 |
| 4414835 | Flange forming drill apparatus | — | 1983-11-15 |
| 4413485 | Flange forming drill means | — | 1983-11-08 |
| 4412441 | Method for forming an enlarged flanged hole in a curved surface | — | 1983-11-01 |
| 4389866 | Apparatus for forming an enlarged flanged hole in a curved surface | — | 1983-06-28 |