Method for manufacturing a filter cartridge
US5091129A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1989 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Dec 29, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/902
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for manufacturing a filter cartridge by polymerization of a polyethylene hydrocarbon with granular elements are set forth. The method involves the preparation of a mixture comprising the hydrocarbon and the granular elements, then introduction of the mixture into a mold which is formed by a first porous wall and a second porous wall, these walls being connected to a jacket, the introduction of the mold in an oven so as to raise the temperature of the mixture and by a thermal polymerization reaction to transform the hydrocarbon into a material binding the granular elements of the mixture, the assembly of the material and granular elements then forming a cartridge, and injection of a chemically inert gaseous composition into the mold through one of the walls to impart fluid permeability to the cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.