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:
Oct. 20, 1992
Filed:
Jul. 12, 1991
Kunio Mitobe, Yamagata, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
A dome radiator speaker has a yoke, an annular magnet mounted on the yoke, an annular plate mounted on the magnet, and a diaphragm sheet. The diaphragm sheet has a domed diaphragm, an annular voice coil housing having a U-shaped section surrounding the diaphragm, an annular damper around the voice coil housing, and an engaging recess formed on the underside of the diaphragm sheet at a peripheral portion of the damper. A voice coil is provided in the voice coil housing, and the voice coil housing is inserted in a gap between the pole and the annular plate. The recess is engaged with an annular projection formed on the plate. A frame is mounted on the plate for securing the damper on the plate.