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:
Oct. 09, 2007
Filed:
Sep. 01, 2001
Applicants:
Norbert Nicolai, Schermbeck, DE;
Volkmar Schulze, Schierling, DE;
Inventors:
Norbert Nicolai, Schermbeck, DE;
Volkmar Schulze, Schierling, DE;
Assignees:
EEEA Entwicklungsgesellschaft fur Akustik mbH, Witten, DE;
HP-Chemie Pelzer Research and Development Ltd., Waterford, IE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60N 3/04 (2006.01); B60R 13/08 (2006.01); G10K 11/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A floor covering characterized as having a strong noise-reducing properties for the interior trim of means of transport. The floor covering has, on the passenger side, a textile or non-textile surface, acoustically coupled through at least one microperforated sheet to a fibrous non-woven and/or foamed plastic. A microperforated sheet having a hole diameter from 0.2 to 0.5 mm and an interhole distance from 3 to 7 mm.