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. 08, 1998
Filed:
Mar. 28, 1996
Yoko Sato, Saitama-ken, JP;
Satoshi Kumada, Saitama-ken, JP;
Ziging Zhang, Saitama-ken, JP;
Junko Oba, Saitama-ken, JP;
Shinji Koyano, Saitama-ken, JP;
Takashi Morishige, Saitama-ken, JP;
Kohshiro Kogure, Saitama-ken, JP;
Yuichi Mohri, Saitama-ken, JP;
Tomohiro Suenaga, Saitama-ken, JP;
Shouichiro Terauchi, Saitama-ken, JP;
Tatsuya Ando, Saitama-ken, JP;
Takanobu Saito, Saitama-ken, JP;
Takashi Ohyaba, Saitama-ken, JP;
Shunichi Takahashi, Saitama-ken, JP;
Teruo Baba, Saitama-ken, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
A cylindrical frame is mounted in a cabinet and a magnetic circuit is provided at an end of the frame. A diaphragm having a peripheral free edge is connected to a coil bobbin and a cylindrical ring is secured to the free end edge and disposed in a cylindrical supporting portion of the frame. An annular sealing member is secured to the cylindrical ring so that an outside peripheral wall thereof is slidably contacted with an inside wall of the cylindrical supporting portion of the frame.