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. 13, 2012
Filed:
Dec. 10, 2009
Yan Yu Chen, Taichung, TW;
Yan Yu Chen, Taichung, TW;
Hiwin Technologies Corp., Situn, Taichung, TW;
Abstract
A motion guide device includes a ball nut attached onto a shaft and having helical grooves for receiving ball bearing elements, and a ball coupler including a flexible coupling member having a number of openings formed between spacers for receiving ball bearing elements, the ball bearing element is contacted with the ball nut at a contact point which is spaced from the inner peripheral surface of the ball nut for a spacing distance, and the ball bearing element is contacted with the screw shaft at a contact point which is spaced from the outer peripheral surface of the screw shaft for a spacing distance that is preferably smaller than the spacing distance between the contact point of the ball bearing element and the ball nut.