Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860406 | Method for detecting the density or thickness and variations thereof of fiber material at the infeed of a textile machine as well as a method for evening the density or thickness variations of fiber material at the infeed of a textile machine | Robert Demuth, Peter Fritzsche | 1989-08-29 |
| 4854011 | Method for automatically compensating density or thickness variations of fiber material at textile machines, such as cards, draw frames and the like | Robert Demuth, Peter Fritzsche | 1989-08-08 |
| 4797979 | Arrangement for supplying a fiber processing machine | Fritz Knabenhans | 1989-01-17 |