Patent · US Expired

Method for manufacturing an accordion filter insert

US6682683B2 · kind B2 · utility

1Cited by

6References

9Claims

0Family size

Assignee

Firma Carl Freudenberg · DE

Inventors

Udo Michaelis · Weiterstadt, DE
Dieter Linse · Schwetzingen, DE
Jorgen Knudsen · Angelbachtal, DE

Key dates

Filing date	Nov 22, 1996
Grant date	Jan 27, 2004
Priority date	—
Expiry date	Jun 2, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S264/48
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for manufacturing an accordion filter insert in which an accordion filter pack is introduced into a mold and a space remaining thereafter in the mold is filled with a liquefied polymer material so as to form a frame surrounding the accordion filter pack. At least one peripheral elastically deformable sealing lip, consisting of the material of the frame, is produced together with the frame and is consolidated concurrently therewith.

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