Invention Grant
- Patent Title: Multilayered perforated sound absorber
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Application No.: US14426556Application Date: 2013-09-16
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Publication No.: US09702141B2Publication Date: 2017-07-11
- Inventor: Norbert Nicolai , Rod Morris-Kirby , Marco Schneider , Uwe Kaiser , Reimund Piatkowski , Volkmar Schulze
- Applicant: HP Pelzer Holding GmbH
- Applicant Address: DE Witten
- Assignee: HP Pelzer Holding GMBH
- Current Assignee: HP Pelzer Holding GMBH
- Current Assignee Address: DE Witten
- Agency: Clements Bernard Walker, PLLC
- Agent Seth L. Hudson
- Priority: DE102012216500 20120917
- International Application: PCT/EP2013/069131 WO 20130916
- International Announcement: WO2014/041163 WO 20140320
- Main IPC: E04B1/84
- IPC: E04B1/84 ; G10K11/168 ; B32B3/26 ; B32B5/02 ; B32B5/18 ; B32B27/08
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.
Public/Granted literature
- US20150267401A1 MULTILAYERED PERFORATED SOUND ABSORBER Public/Granted day:2015-09-24
Information query
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