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.:

US 7501920 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 10, 2009

Filed:

Dec. 08, 2005
Applicants:

Takashi Yuba, Shinagawa, JP;

Hideki Iwata, Shinagawa, JP;

Yuriko Segawa, Shinagawa, JP;

Inventors:

Takashi Yuba, Shinagawa, JP;

Hideki Iwata, Shinagawa, JP;

Yuriko Segawa, Shinagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 51/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

A switch device includes: a movable spring that has one end as a fixed end, and the other end as a free end; a substrate that is disposed below the movable spring; a first contact point that is disposed at a predetermined location between the fixed end and the free end of the movable spring; a protrusion that is formed on the substrate and is located to face the free end of the movable spring; and a second contact point that is provided on the substrate and is located to face the first contact point. This switch device is put into an ON state when the free end of the movable spring is brought into contact with the protrusion and the first contact point is brought into contact with the second contact point.


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