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:
Mar. 30, 2004
Filed:
Feb. 25, 2002
Applicant:
Inventors:
Yoshihisa Kamiya, Shizuoka-ken, JP;
Hiroyuki Kato, Shizuoka-ken, JP;
Yoshiyasu Kogure, Shizuoka-ken, JP;
Tsutomu Ishiwata, Tokyo, JP;
Gene Larson, Forest Lake, MN (US);
Assignee:
Sugiyama Seisakusho Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01R 3/916 ; H01R 3/952 ;
U.S. Cl.
CPC ...
H01R 3/916 ; H01R 3/952 ;
Abstract
A cylindrical commutator is provided with a plurality of segments arranged at equal intervals around an axis, each of which is provided with a groove on an inner surface thereof and one or more anchors extending from edges of the groove. The grooves and the anchors are extended over substantially the total length of the segments and respectively have end steps and end edges at ends near the hooks, or the anchors can be formed in pair and the pair of anchors are connected with each other at the ends near the hooks.