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:
Apr. 05, 2011
Filed:
May. 14, 2004
Yasuhiro Kiyono, Kyoto, JP;
Toshihiro Naruo, Kyoto, JP;
Kouji Yamamoto, Souraku-gun, JP;
Yuji Hayakawa, Shiki-gun, JP;
Isao Mizuta, Tenri, JP;
Yasuhiro Kiyono, Kyoto, JP;
Toshihiro Naruo, Kyoto, JP;
Kouji Yamamoto, Souraku-gun, JP;
Yuji Hayakawa, Shiki-gun, JP;
Isao Mizuta, Tenri, JP;
Panasonic Corporation, Osaka, JP;
Omron Corporation, Kyoto, JP;
Abstract
In fabricating a door switch for a microwave oven, two switches are incorporated in a single switch case to allow a reduction in the size and to allow common use of switch components, thereby achieving a cost reduction through a reduction in the number of components. Further, a contact switching structure tilted in conjunction with opening and closing of a door is provided to achieve high accuracy in switching the switches. There is provided a first switch whose contact portions are switched by elastically displacing a conductive contact piece in the switch case when a first tilting lever is tilted, a second switch whose contact portions are switched by elastically displacing another conductive contact piece in the switch case at timing that is slightly different from the timing for switching the contact portions of the first switch, and a third switch which is switched when a second tilting lever is tilted.