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:
Sep. 15, 2015

Filed:

Mar. 11, 2013
Applicant:

Hiwin Technologies Corp., Taichung, TW;

Inventors:

Che Kang Chang, Taichung, TW;

Zong Sian Jiang, Taichung, TW;

Assignee:

Hiwin Technologies Corp., Situn, Taichung, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 25/22 (2006.01);
U.S. Cl.
CPC ...
F16H 25/2219 (2013.01); F16H 25/2209 (2013.01); Y10T 74/19772 (2015.01);
Abstract

A ball screw device includes a screw engaged into two nut members for forming a ball guiding passage between the nut members and the screw member and for receiving and engaging with bearing members, and a load applying device is disposed on the screw member and disposed between the nut members and applies a load onto the nut members in order to force and move the nut members away from each other and so as to apply a force onto the ball bearing members and in order to stably anchor and retain the ball bearing members between the nut members and the screw member and in order to facilitate a movement between the nut members and the screw member.


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