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:
Aug. 27, 2002
Filed:
Mar. 28, 2001
Morihisa Yoshioka, Iwata, JP;
Koji Tateishi, Iwata, JP;
Isamu Yoshida, Iwata, JP;
Yoshinori Ikeda, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
A ball screw mechanism ( ) compact in size, employing a minimized number of component parts and having a high load capacity includes a rotary nut ( ) having an internally threaded helical groove ( ) and a mounting hole ( ) both defined therein, and a simplified bridge member ( ) mounted in the rotary nut ( ). The bridge member ( ) has a plurality of connecting grooves ( ) defined on an inner surface thereof each operable to communicate neighboring convolutions of the internally threaded helical groove ( ). The bridge member ( ) has its opposite side edges formed with respective guide walls ( ) protruding in a direction radially outwardly of the rotary nut ( ) that are crimped to allow the bridge member ( ) to be fixedly retained within the mounting hole ( ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile