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.

Date of Patent:
May. 25, 2004

Filed:

Aug. 15, 2003
Applicant:
Inventors:

Yoshihiko Matsui, Shizuoka, JP;

Hidemitsu Takebuchi, Chiba, JP;

Akira Nishijima, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 3/366 ;
U.S. Cl.
CPC ...
H01H 3/366 ;
Abstract

A contact and a vacuum interrupter using the contact. The contact includes a hollow cylindrical contact carrier and a contact plate disposed on one of the axial end faces of the contact carrier. First slits and second slits extend from the one of the axial end faces of the contact carrier and the other thereof, respectively. The first slits and the second slits are inclined with respect to the center axis of the contact carrier and have a first height x and a second height y extending in the axial direction of the contact carrier, respectively. Assuming that the axial length of the contact carrier is 1, the first height x and the second height y satisfies a relationship given by the following expressions (1)-(3): (1) 0.9≧x, (2) x≧y≧0.2x, (3) 1.4≧x+y≧0.8.


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