Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6148902 | Multiple die casting machines with single vacuum source | Michael D. Zielinski, Walter H. Yelczyn, David M. Regenauer | 2000-11-21 |
| 6082438 | Method and system for the control of a vacuum valve of a vacuum die casting machine | Michael D. Zielinski | 2000-07-04 |
| 5540084 | Vacuum system testing tool | — | 1996-07-30 |
| 4420028 | Lubrication system for a die casting machine | — | 1983-12-13 |