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. 04, 2009
Filed:
Jan. 15, 2004
Roman Litovsky, Newton, MA (US);
Jingyi Liu, Marlborough, MA (US);
Roger Mark, Barrington, RI (US);
Nachiketa Tiwari, Mansfield, MA (US);
Roman Litovsky, Newton, MA (US);
Jingyi Liu, Marlborough, MA (US);
Roger Mark, Barrington, RI (US);
Nachiketa Tiwari, Mansfield, MA (US);
Bose Corporation, Framingham, MA (US);
Abstract
An acoustic passive radiator that controls 'rocking mode' vibration. An acoustic passive radiator includes a diaphragm for radiating acoustic energy. The diaphragm has a perimeter portion and a central portion. The perimeter portion is thicker than the central portion. The passive radiator further includes a passive radiator suspension. The suspension includes a skin element encasing the diaphragm. The skin element comprises a surround for physically coupling the passive radiator to an acoustic enclosure, pneumatically sealing the diaphragm and the enclosure. The surround has a non-uniform width. The passive radiator a non-pneumatically sealing, non-surround, non-spider suspension element. The non-surround suspension element and the surround coact to control the motion of the diaphragm and to support the weight of the diaphragm.