Card wire with improved tooth shape
US9145625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2012 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Sep 7, 2032 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G15/88
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A card wire comprises an elongated rib portion and teeth. The teeth have a front portion and a back portion. The teeth hang over towards their front portion. The front portion and back portion merge at the tip of the tooth. The front portion comprises at least three sections: a first section extends from the tip of the tooth in the direction of the rib portion, a second section extends below the first section in the direction of the rib portion and a third section extends from the end of the second section in the direction of the rib portion. The second section comprises a straight part and a curved segment, wherein the straight part has a minimum length of 0.10 mm and the straight part has an angle between 10 and 30 degrees relative to the length direction of the card wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.