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. 29, 2017
Filed:
Jun. 18, 2014
Thk Co., Ltd., Tokyo, JP;
Junichiro Iwaki, Tokyo, JP;
THK CO., LTD., Tokyo, JP;
Abstract
Provided is a sound reduction or vibration damping apparatus that has a new sound control principle where the sound control principle is totally different from a known passive or active sound control apparatus. A sound reduction or vibration damping apparatusincludes a mass portion, spring portionsandplaced between the mass portionand a structural member, and a control unitfor causing the spring constants of the spring portionsandto continue changing. The sound reduction or vibration damping apparatusis mounted on the structural memberto reduce sound passing through the structural memberor sound generated from the structural member, or damp the vibration of the structural member