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:
Dec. 12, 2006
Filed:
Oct. 08, 2004
Kazuo Miyaguchi, Maebashi, JP;
Tsutomu Ohkubo, Maebashi, JP;
Takeshi Nakazawa, Maebashi, JP;
Shirouji Yabe, Maebashi, JP;
Soichiro Kato, Maebashi, JP;
Nobumitsu Takahashi, Maebashi, JP;
Ryouichi Sato, Maebashi, JP;
Hiroki Yamaguchi, Maebashi, JP;
Yoshinori Mizumura, Maebashi, JP;
Kazuo Miyaguchi, Maebashi, JP;
Tsutomu Ohkubo, Maebashi, JP;
Takeshi Nakazawa, Maebashi, JP;
Shirouji Yabe, Maebashi, JP;
Soichiro Kato, Maebashi, JP;
Nobumitsu Takahashi, Maebashi, JP;
Ryouichi Sato, Maebashi, JP;
Hiroki Yamaguchi, Maebashi, JP;
Yoshinori Mizumura, Maebashi, JP;
NSK Ltd., Tokyo, JP;
Abstract
A spacer between adjacent balls of, for example, a ball screw device or a linear motion device has an outer periphery that is concave such that the spacer is elastically deformed to be in substantially circular line contact with the adjacent balls and that a distance therebetween is variable.