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:
Feb. 19, 2019
Filed:
Mar. 16, 2016
Meggitt-usa, Inc., Simi Valley, CA (US);
Mason E. Heck, Standish, MI (US);
Stephen R. Ahlers, Saginaw, MI (US);
LINEAR MOTION, LLC, Bingham Farms, MI (US);
Abstract
A linear motion assembly and recirculation insert therefor is provided. The assembly includes a ball nut having a through bore with an internal helical groove and a screw having an external helical groove. The external helical groove is radially aligned with the internal helical groove to define a plurality of ball raceways. A plurality of inserts is fixed within the bore of the ball nut. The inserts each have a central body fixed within a recessed pocket of the ball nut, with the body having a radially inwardly facing, generally s-shaped groove to route the balls between adjacent turns. A pair of legs extends in opposite directions from the central body, wherein the legs are sized for a clearance fit with the external helical groove. The legs merge with the central body over a smooth transition region that minimizes stress concentrations at the joint between the legs and central body.