Flexible mini-ring in the plum flower shape
US6102376A · kind A · utility
3Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1998 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Sep 21, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/72
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is a kind of flexible plum flower mini ring which is used in chemical separation equipment. The packing consists of a mini ring with plum flower shape and rectangular windows and connected inner arc strips on its petals. There is a smaller flap cut from the middle of the inner arc strip which is bent into the center of the mini ring. The present invention can be used in normal or high pressure distillation, absorption and stripping with heavy liquid load and solvent extraction (lube-oil refining, aromatic separation and so on).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.