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:
Apr. 22, 1997
Filed:
Aug. 22, 1995
Mitchell A Machelski, Saginaw, MI (US);
Thomson Saginaw Ball Screw Company, Inc., Saginaw, MI (US);
Abstract
A crossover button, in combination with a ball nut and screw assembly, has a generally Z-shaped body with a section received within a radial bore in the nut. The body has an axially diagonal, raceway turn bridging, ball crossover recirculation passage in its radially inner face which separates portions of a pair of adjacent raceway turns into ball path portions and non-ball path portions external to the ball path portions. The passage has entrances for different turns communicating with the ball path portions. Incorporated with the body are a pair of oppositely helically extending, integrated, normally non-load bearing legs, projecting laterally in a direction away from the passage entrances adjacent opposite ends of the passage in generally parallel lateral planes, which are received in the adjacent non-ball path portions of both the complemental nut and screw helicoidal grooves out of the path of the train of load bearing balls to function to prevent free-wheeling in the event of ball train failure.