Tubular filter element for the filtration of fluids
US4419241A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1982 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Jul 7, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is disclosed tubular filter element for the filtration of fluids, which is equipped with an enclosing housing with an inlet and outlet or is insertable into such a housing. The filter element is cylindrical and consists of a plurality of pleated radially extending folds. The filter is built up in several layers and the junction is bridged through at least one flexible connecting blank of synthetic material engaging between two layers and durably connected tight against leakage cohesively or adhesively by two seams or connecting zones. The flexible connecting blank by having a section extending between longitudinal edge portions of junction form an open fold pointing radially outwardly and a fold web pointing radially inwardly of the filter element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.