Patent · US Active

Muffler insert for motor vehicles and method for producing same

US9133754B2 · kind B2 · utility

2Cited by

14References

18Claims

0Family size

Assignee

DBW Holding GmbH · DE

Inventors

Thomas Bauer · Schrobenhausen, DE
Karl-Christian Regent · Wolfenbüttel, DE
Martin Schwerdtfeger · Einbeck, DE

Key dates

Filing date	Feb 23, 2012
Grant date	Sep 15, 2015
Priority date	—
Expiry date	Feb 23, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/25
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A first aspect of the present application relates to a method for producing sound-damping, sound-absorbing and/or insulating molded material. More specifically, the method according to the invention relates to a method for producing said molded materials, wherein the fibrous material is wound around at least two carriers and subsequently the wound blank thus obtained remains on the carriers so as to be permanently solidified in order to obtain the molded material according to the invention. A further aspect of the present application concerns the molded material thus obtained, in particular in the form of molded mats or molded objects. Said molded material can be used, in particular, in mufflers. Finally, the following application concerns a device for producing said molded materials from fibrous material.

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