Spinning machine traveler
US6804944B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Oct 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2913
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A traveler is formed by a base material consisting of hard steel wire, a nitrogen compound layer, and a sulfide layer such that the nitrogen layer is on the base material side. The nitrogen compound layer and the sulfide layer are formed by executing sulphonitriding treatment on the hard steel wire bent into a traveler shape. The borders between the base material, the nitrogen compound layer, and the sulfide layer are diffused. The spinning machine traveler is used without a running-in operation even when spinning operation is performed at an ultra high spindle rotational speed in excess of 25,000 rpm at the initial use of the traveler, and the service life is also elongated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.