Patent · US Expired

Method for producing a sealing connection

US6579348B1 · kind B1 · utility

7Cited by

9References

19Claims

0Family size

Assignee

HYDAC PROCESS TECHNOLOGY GMBH · DE

Inventors

Martin Winter · Mülheim an der Ruhr, DE
Ralf Wnuk · Bexbach, DE
Norbert Lang · Blieskastel, DE
Jurgen Hausdorf · Saarburg, DE

Key dates

Filing date	May 30, 2001
Grant date	Jun 17, 2003
Priority date	—
Expiry date	May 30, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/05
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for producing a sealing connection between a filter mat of a tubular filter element and a metallic head piece encircling the filter element at one end. The head piece has an annular groove accommodating the edge of the filter mat. In order to reduce the internal diameter of the annular groove, the wall adjacent to the periphery is compressed by the periphery of the head piece towards the interior by applying a force of pressure which is directed radially towards the interior. The wall of the annular groove adjacent to the periphery is provided with an enlargement which enlarges the diameter of the head piece. The force of pressure for compressing the wall is applied in the area of said enlargement.

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