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:
Jun. 03, 2003
Filed:
Jun. 06, 2001
Ryuji Takeda, Tokyo, JP;
Tetsuhiro Nishide, Tokyo, JP;
Hiroshi Niwa, Tokyo, JP;
Mitsuaki Honma, Tokyo, JP;
THK Co., Ltd., Tokyo, JP;
Abstract
Lubricant retaining slits ( ) are formed on a pair of seal members ( ) from end surfaces ( ) thereof facing inside in the axial direction of a nut ( ) of a ball screw to intermediate portions of the seal members ( ), and foreign bodies removing slits ( ) are formed on the seal members ( ) from end surfaces ( ) thereof facing outside in the axial direction of the nut ( ) to intermediate portions thereof The lubricant retaining slits ( ) can positively trap the lubricant invading into the gap between the seal member ( ) and the screw shaft and returns the lubricant inside the nut ( ). The foreign bodies removing slits ( ) can remove the foreign bodies stored on the outer peripheral surface of the screw shaft and discharged outside the nut ( ).