Patent · US Expired

Tubular filter element with axially yieldable section

US5043068A · kind A · utility

8Cited by

8References

17Claims

0Family size

Assignee

Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co. · DE

Inventors

Massoud Karbachsch · Göttingen, DE
Herbert Radmacher · Bad Kreuznach, DE
Michael Becker · Zell im Wiesental, DE

Key dates

Filing date	May 24, 1989
Grant date	Aug 27, 1991
Priority date	—
Expiry date	May 24, 2009

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2201/34
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter cartridge has a support structure consisting of at least one tube provided with openings over its entire length and having at least one axially yieldable annular zone to permit axial movement to compensate for axial stresses and prevent damage to the filter material supported by the structure.

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