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:
Sep. 10, 2013
Filed:
Feb. 17, 2005
Junji Minakuchi, Gunma, JP;
Junji Minakuchi, Gunma, JP;
NSK Ltd., Tokyo, JP;
NSK Precision Co., Ltd., Tokyo, JP;
Abstract
In a ball screw apparatus according to the present invention, a ball guide pathfor guiding a ballscooped up in a tangential direction of a ball center track circle to a ball return pathis formed between a ball guide faceof a ball circulating memberand a ball guide path forming facethat is provided at a nut. Accordingly, it is possible to provide a ball screw apparatus capable of scooping up a ball in a tangential direction of a ball center track circle to circulate without reducing a diameter of the ball even when a groove interval of a ball screw groove is narrow or when the ball screw groove is a multistreak screw groove.