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. 15, 2003
Filed:
Feb. 20, 2001
Nippon Thompson Co., Ltd., Tokyo, JP;
Abstract
In a curvilinear motion guide unit in which sliders are allowed to move along a track rail extending curved with a preselected curvature, this unit makes the slider reduced in size with well balance. An end cap may be made common in specification to a variety of sliders, which are modified in specification depending on diverse variations in curvature of track rail. To this end, a casing for the slider has forward and aft end faces that are arranged, regardless of the variations in length of the casing, such that imaginary planes including the end faces and normal to a top surface of the track rail coincide with radial planes extending through the center of curvature of the track rail. The return passages are opened on the forward and aft end faces at locations that are closer to the centroidal axis of the track rail than the loaded raceways. Moreover, the return passages are linear bores that run straight through the casing.