Patent · US Expired

Filter assembly including a reinforced radial seal

US5736040A · kind A · utility

60Cited by

5References

8Claims

0Family size

Inventors

Rolf Duerrstein · Bietigheim, DE
Hans Erdmannsdoerfer · Dobel, DE
Bruno M. Sommer · Ludwigsburg, DE
Helmut Storz · Memmingen, DE

Key dates

Filing date	Oct 27, 1994
Grant date	Apr 7, 1998
Priority date	—
Expiry date	Oct 27, 2014

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2271/027
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter arrangement formed with a housing and a center tube connected with the housing. In the filter arrangement, a metal-free filter cartridge is arranged which includes an accordion-folded, annular filter element. The filter cartridge is provided with end plates on the axial end faces of the annular filter element, at least one of the end plates having an elastic construction, and each elastic end plate is provided with a flexible supporting ring which is arranged directly adjacent a radial seal formed by the elastic end plate.

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