Heat treatment apparatus for yarn
US5581909A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1994 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Jul 27, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B13/001
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A heat treatment apparatus for yarn including a plurality of heat treatment apparatuses provided for a plurality of spindles, respectively, disposed at horizontally spaced intervals. The heat treatment apparatus provided for each of the spindles, includes a heat treatment tube through which at least one yarn passes, and a heat insulating jacket to surround the tube. An orifice having a throttling function is provided upstream of a part which provides communication between the heat insulating jacket and the heat treatment tube, while a nozzle for injecting a heated fluid is provided in the heat treatment tube downstream of the communication part. The throttling orifice is arranged to have a fluid resistance greater than the fluid resistance of the nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.