Open end spinning unit having reduced operating power requirements
US4070813A · kind A · utility
8Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1976 |
| Grant date | Jan 31, 1978 |
| Priority date | — |
| Expiry date | Dec 23, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H4/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In an open end spinning unit having a stationary frame member and a spinning rotor rotatably supported by the frame member, and in which, during operation of the unit, a flow of gas occurs from the yarn removal opening and fiber inlet opening of the unit to a gas extraction opening thereof, the gas traversing a path surrounding the rotor, a gas flow controlling structure is disposed around the rotor to define a narrow gap with the exterior surface of a portion of the rotor, so that the space adjacent the remainder of the rotor is in communication with the gas flow path only via the narrow gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.