Spiral wrapped fluid treatment element
US5039413A · kind A · utility
57Cited by
26References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1989 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | Mar 23, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/006
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Filter cartridge elements are provided with a spiral wrapping made from a thermoplastic polymer to give stability against inside-out flow and to protect the filtration medium. The spiral wrapping is attached to underlying turns of the wrap and to the surface of the filter cartridge by fusion bonding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.