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. 16, 1999
Filed:
Aug. 01, 1995
Kouhei Yuasa, Gifu, JP;
Nippon Thompson Co., Ltd., Tokyo, JP;
Abstract
The linear motion rolling guide unit has a top seal secured to the casing which comprises sealing members facing side areas of the upper surface of the track rail. Each of the sealing members comprises a lip seal portion and a labyrinth seal portion. The lip seal portion is inclined outwardly toward the raceway grooves of the casing and its front end contacts the side area of the upper surface of the track rail. The labyrinth seal portion is arranged on a central area side of the lip seal portion and does not contact the side area of the upper surface of the track rail. Hence, the labyrinth seal portions of the top seal prevent foreign matters from entering into the raceway grooves and the lip seal portions prevent leakage of grease.