The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 1994
Filed:
Jun. 08, 1992
Applicant:
Inventors:
Christoph Kittel, Nienhagen, DE;
Hans Walendy, Wathlingen, DE;
Gerhard Burak, Adelheidsdorf, DE;
Manfred Hoffmann, Nienhof, DE;
Assignee:
Dr. Alois Stankiewicz GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264 464 ; 264 466 ; 264 48 ; 264 53 ; 264257 ;
Abstract
A sound insulating structure is provided which is made by foam-backing a carpet in a single operation and which includes a consolidated layer with few or no cells followed by a cellular soft elastic layer. To this end structured materials such as fleece and/or cut foam into which foaming takes place in order to form the consolidated layer, are provided on the back of the carpet or of a foam-proof covering thereon.