Opening roller for an open-end spinning device
US6101805A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1998 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Sep 29, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2224/0275
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An opening roller (1) for an open-end spinning device with a rotatably seated cylindrical roller body (7) is encircled by a sawtooth card clothing, (10, 10") molded in the form of a helical coil spring essentially entirely of a commercial ceramic material, e.g., aluminum oxide, zirconium oxide, silicon carbide, silicon nitride, or a mixture thereof. The ceramic helical sawtooth card clothing may be directly positioned on the cylindrical roller body by the use of an interlocking base body of the card clothing or by friction fitting a square cross-sectional base body or the ceramic card clothing may be indirectly positioned on the cylindrical roller body by winding the helical card clothing around a support structure that surrounds the cylindrical roller body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.