Auxiliary sub-nozzle for fluid jet loom
US4987930A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 5, 1989 |
| Grant date | Jan 29, 1991 |
| Priority date | — |
| Expiry date | Jul 5, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/19
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An auxiliary nozzle for a loom, such as an air jet loom within a shuttleless loom, jets pressurized gas in order to prevent stall of weft inserted into warp shedding. At least a tip portion of an auxiliary nozzle body is formed of ceramics material having a very small integrally-molded surface roughness of 0.5 .mu.m or less and having characteristics of high toughness and high strength whereby occurrence of flaws in warp can be minimized and woven fabric of high quality can be obtained. Particularly, by employment of particular zirconia-type ceramics, the moldability, processing properties for drilling and wear resistance can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.