Packing element
US5304328A · kind A · utility
5Cited by
13References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1993 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Jan 27, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/72
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Metal strips are provided which can be bent into the shape of cylindrical packing elements of the Lessing or Pall ring type. These strips have one end bent back at an acute angle to the rest of the strip and have slots cut into the strip in the vicinity of the bend. At the opposed end tabs are provided that engage with the slots when the strip is formed into a cylinder so as to hold the ends together. Such packing elements have a much greater resistance to crushing than conventional elements and can be made of much thinner metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.