Nozzle core for a device used for producing loop yarn as well as method for the production of a nozzle core
US7752723B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2004 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Jun 1, 2026 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/161
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a ceramic nozzle core and a method for producing a ceramic nozzle core which is part of a device used for producing loop yarn. The inventive ceramic nozzle core is embodied with an approximately constant wall thickness and a reduced size so as to perform the central functions of the yarn processing duct comprising air injection and a yarn outlet for forming loops while being produced in a molding process. In a particularly preferred method, the ceramic nozzle core is injection-molded with high precision. The inventive ceramic nozzle core can be configured in a miniaturized fashion and as part of a two-piece nozzle core, the ceramic nozzle core being inserted into an outer nozzle core jacket. The two-piece nozzle core can be incorporated into a housing known in prior art, for example, as a replaceable nozzle core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.