Patent · US Active

Multilayered perforated sound absorber

US9702141B2 · kind B2 · utility

1Cited by

2References

14Claims

0Family size

Assignee

HP Pelzer Holding GMBH · DE

Inventors

Norbert Nicolai · Schermbeck, DE
Rod Morris-Kirby · Lostwithiel, GB
Marco Schneider · Austin, US
Uwe Kaiser · Rostock, DE
Reimund Piatkowski · Dortmund, DE
Volkmar Schulze · Schierling, DE

Key dates

Filing date	Sep 16, 2013
Grant date	Jul 11, 2017
Priority date	—
Expiry date	Sep 16, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB32B2605/00
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention concerns a multilayered perforated sound absorber (1) with a microperforated plastics film (4) and a thermally deformable absorber (3) which is a foam layer, a fabric or a fibrous non-woven layer. The invention further concerns a method for producing a corresponding sound absorber.

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