Patent · US Active

End disk

US7914725B2 · kind B2 · utility

0Cited by

0References

7Claims

0Family size

Assignee

MANN+HUMMEL GmbH · DE

Inventor

Anton Kreiner · Dingolfing, DE

Key dates

Filing date	Aug 6, 2010
Grant date	Mar 29, 2011
Priority date	—
Expiry date	Aug 6, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29L2031/14
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A plastic end disk for a hollow-cylindrical filter element has an end face plastic layer and a neighboring plastic layer. The end face plastic layer is transparent for infrared radiation. The neighboring plastic layer is absorbent for infrared radiation. The plastic end disk is connected to a folded filter medium in that the end face plastic layer is trans-irradiated with an infrared radiation source, wherein the infrared radiation is absorbed in the neighboring plastic layer so that a portion of the neighboring plastic layer and a portion of the end face plastic layer are completely melted. The infrared radiation source is removed and the filter medium is pressed into a melted area of the end face plastic layer. The filter medium is secured in the pressed-in position in the end face plastic layer until a fixed connection of filter medium and end face plastic layer has been formed.

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