Apparatus for intermingling multifilament yarns
US6438812B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Jan 16, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/161
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for intermingling multifilament yarns, having an intermingling assembly with a thread channel (3; 11), and at least one blowing channel (5′, 5″; 6′, 6″) opening into the thread channel (3; 11), and capable of receiving compressed air, wherein the cross-section of each blowing channel (5′, 5″; 6′, 6″) increases in the direction of the thread channel (3; 11) and the thread channel (3; 11) for each blowing channel (5′, 5″; 6′, 6″) has a first segment (3′) before the opening of the blowing channel (5′, 5″; 6′, 6″), a second segment (3″) in the area of the opening of the blowing channel (5′, 5″; 6′, 6″), and a third segment (3′″) after the opening of the blowing channel (5′, 5″; 6′, 6″), whereby the second segment (3″) of the thread channel has larger cross-sectional areas than those of the first and third segments. Preferably, the second segment has a width and/or length that increase(s) at least portionwise from the opening of the blowing channel (5′, 5″; 6′, 6″) into the thread c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.