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. 25, 2009
Filed:
Oct. 10, 2007
Applicant:
Yoshiyuki Nakade, Fukui, JP;
Inventor:
Yoshiyuki Nakade, Fukui, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 13/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
In the switch, a terminal section and a contact section of a fixed contact are separately formed and the two sections are connected via a coil made of a conductive metal wire. After electrical connection is established between a movable contact and fixed contacts, a weak current with no arc discharge flows between the movable and the fixed contacts. This prevents build-up of oxide or carbide on the contact surface, allowing the switch to have stable contact operation and accordingly reliable electrical connection.