Patent · US Expired

Filter element and method for the production thereof

US7462282B2 · kind B2 · utility

6Cited by

6References

10Claims

0Family size

Assignee

HYDAC FILTERTECHNIK GMBH · DE

Inventors

Harald Mees · Lebach, DE
Michael Sakraschinsky · Sankt Ingbert, DE

Key dates

Filing date	Jul 26, 2003
Grant date	Dec 9, 2008
Priority date	—
Expiry date	Jan 19, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/1025
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter element includes a filter cylinder whose outer side rests against a fluid-permeable supporting tube (15). The inside (3) of the filter cylinder can be flown through by the fluid to be filtered. The filter cylinder is formed by a filter mat web. The filter mat web has a series of folds (9) that rest against one another at least in areas. Both ends of the filter mat web are joined to one another at a junction (5) to form an annular body (1). The filter element includes a device that acts upon the junction (5) to prevent, in the area of the junction (5), a bulging of the folds (9) caused by the flow of the fluid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.