Method and apparatus for eliminating impurities from an open-end spinning machine
US4009562A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 9, 1976 |
| Grant date | Mar 1, 1977 |
| Priority date | — |
| Expiry date | Feb 9, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H4/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An air duct is located opposite a separating opening which opens into the space containing the fiber opening roll so as to receive impurities centrifuged from the opening roll. The separating opening has a wall which forms an acute angle with the opposite wall of the duct so that the impurities can be deflected off the duct wall into the same direction as the air flow in the duct. The duct is narrowed downstream of this point in order to accelerate the air flow and entrained impurities out of the machine via a suction duct. This also stretches out any loose fibers in the flow for rapid removal in order to prevent clogging of the suction duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.