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:
Sep. 06, 2022
Filed:
May. 18, 2016
Applicant:
Goertek Inc., Weifang, CN;
Inventor:
Xiaodong Cao, Weifang, CN;
Assignee:
GOERTEK INC., Weifang, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K 11/162 (2006.01); D04H 1/02 (2006.01); H04R 1/28 (2006.01);
U.S. Cl.
CPC ...
G10K 11/162 (2013.01); D04H 1/02 (2013.01); H04R 1/2811 (2013.01);
Abstract
The present invention discloses a sound-absorbing piece and a preparation method thereof. The preparation method of the sound-absorbing piece comprises: preparing perforated sound-absorbing cotton matched with a preset cavity in shape; mixing sound-absorbing material powder with a solvent and a template agent to prepare a sound-absorbing slurry; impregnating the perforated sound-absorbing cotton with the sound-absorbing slurry for a preset period; and drying the perforated sound-absorbing cotton impregnated with the sound-absorbing slurry to remove a liquid in the perforated sound-absorbing cotton.