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:
Jun. 01, 2010
Filed:
Nov. 24, 2004
Hiroshi Ogasawara, Yawata, JP;
Hidenori Kakehashi, Takatsuki, JP;
Ryusuke Ura, Hirakata, JP;
Hiroshi Miyasaki, Tsubame, JP;
Keisuke Harada, Himeji, JP;
Yoshinobu Shibata, Himeji, JP;
Shigeki Matsuo, Kadoma, JP;
Kazuhiko Sakai, Kadoma, JP;
Hiroshi Ogasawara, Yawata, JP;
Hidenori Kakehashi, Takatsuki, JP;
Ryusuke Ura, Hirakata, JP;
Hiroshi Miyasaki, Tsubame, JP;
Keisuke Harada, Himeji, JP;
Yoshinobu Shibata, Himeji, JP;
Shigeki Matsuo, Kadoma, JP;
Kazuhiko Sakai, Kadoma, JP;
Panasonic Electric Works Co., Ltd., Osaka, JP;
Abstract
In an electrodeless discharge lamp suitable for use at a place with unfavorable environmental conditions or at a place where lamp replacement is difficult, the replacement of a lamp unit is facilitated and the lamp unit is prevented from falling off from a power coupler unit even if there is component deterioration caused by long-term use. A metallic elastic member is provided near a position on a metallic heat conduction member of the power coupler unit that is farthest from an electromagnetic field generating portion. In addition to an ordinary coupling structure between the power coupler unit and a coupling member, the elastic member is engaged with the coupling member of the lamp unit. When the lamp unit is mounted on or removed from the power coupler unit, a bulb of the lamp unit is turned relative to the power coupler unit about the axis and moved forward/backward in the direction of the axis. This causes the elastic member to be elastically deformed by the coupling member and engaged to or separated from a coupling portion provided at the coupling member.