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:
Dec. 11, 2018
Filed:
Oct. 23, 2015
Bose Corporation, Framingham, MA (US);
Brian M. Lucas, Marblehead, MA (US);
Weidong Zhu, Newton, MA (US);
Binu K. Oommen, Milford, MA (US);
Brock N. Jacobites, Westborough, MA (US);
Thomas A. Froeschle, Southborough, MA (US);
Joseph A. Stabile, Worcester, MA (US);
Christopher A. Pare, Franklin, MA (US);
Wit Bushko, Medway, MA (US);
Bose Corporation, Framingham, MA (US);
Abstract
A loudspeaker includes an acoustic diaphragm, an oscillatory force source, a lever coupling the oscillatory force source to the acoustic diaphragm, and a pivot coupled to the lever such that the lever moves in an arcuate path about the pivot when the oscillatory force source applies a force to the lever. The pivot includes at least one torsion bushing. The at least one torsion bushing includes a first member, a second member coupled to the lever and movable relative to the first member, and an elastomeric member coupling the first member to the second member. Either the first member or the second member is coupled to and moves with the lever. An outer surface of the elastomeric member is coupled to the second member via mechanical compression.