Issued Patents All Time
Showing 51–72 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5131219 | Spinning machine having yarn carriers retained in pairs on a revolver | Karl-Josef Brockmanns | 1992-07-21 |
| 5088266 | Sliver feeding and opening device of an open-end spinning machine | — | 1992-02-18 |
| 4901519 | Method and apparatus for separating sliver into individual fibers in a sliver opening device | Karl-Josef Brockmanns | 1990-02-20 |
| 4891974 | Method and apparatus for determining characteristics of staple fiber yarns | — | 1990-01-09 |
| 4829762 | Method and device for improving a yarn produced in the rotor of an open-end spinning apparatus | — | 1989-05-16 |
| 4825637 | Fiber opening device in a spinning unit of an open-end spinning machine | — | 1989-05-02 |
| 4815269 | Silver opening and feeding device for an open-end spinning device | — | 1989-03-28 |
| 4773211 | Arrangement for open-end spinning | Fritz Stahlecker, Hans Raasch | 1988-09-27 |
| 4769984 | Fiber opening, fiber feeding and yarn withdrawing unit for a spinning station of an open-end rotor spinning machine | Hans Raasch | 1988-09-13 |
| 4744209 | Device for removing residual fiber particles on the perforated friction surfaces of an oe-friction spinning machine | — | 1988-05-17 |
| 4724668 | Method and apparatus for the formation of spinning fibers | — | 1988-02-16 |
| 4689946 | Spinning device for producing a twisted thread | — | 1987-09-01 |
| 4663929 | Spinning rotor for an OE-spinning machine and method for producing the spinning rotor | Hans Raasch | 1987-05-12 |
| 4660374 | Open-end rotor spinning machine | — | 1987-04-28 |
| 4641494 | Device for feeding-in a thread end into a spinning nip of a friction spinning machine | Hans Raasch | 1987-02-10 |
| 4625505 | Friction spinning device | Hans Raasch | 1986-12-02 |
| 4586325 | Method and device for piecing on a thread in friction spinning machines | — | 1986-05-06 |
| 4543779 | Spinning device | — | 1985-10-01 |
| 4541233 | Method and device for starting the operation of a friction-spinning machine unit | Hans Raasch, Josef Derichs | 1985-09-17 |
| 4541234 | Method and device for starting the operation of a friction spinning machine | Josef Derichs | 1985-09-17 |
| 4516397 | Method and device for increasing the hairiness and the bulkiness of a thread | Hans Raasch | 1985-05-14 |
| 4458477 | Method and device for manufacturing a thread | Hans Raasch | 1984-07-10 |