Fluid filtering apparatus and tubular filter therefor
US4637875A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1982 |
| Grant date | Jan 20, 1987 |
| Priority date | — |
| Expiry date | Jul 19, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/0453
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid filtering apparatus and, in particular, a tubular filter construction for use therein. Each filter consists of one or more unitary cylindrical filter elements formed of porous material suitable for filtering inks, paints, and other liquids. Each filter element has upper and lower end portions and an intermediate portion therebetween, one of the end portions having a frustoconical protrusion and the other end portion having a frusto-conical recess. Such recesses and protrusions are adapted to mate with the protrusions and recesses, respectively, of adjacent filter elements aligned therewith, or with supporting structural components of a filter housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.