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:
Oct. 04, 2022
Filed:
Apr. 02, 2019
Nok Corporation, Tokyo, JP;
Toshiki Watanabe, Fukushima, JP;
Kokichi Hamamoto, Fukushima, JP;
Tomoaki Nishimura, Fukushima, JP;
Hiromi Sugihara, Fukushima, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A sealing device includes a reinforcing ring and an elastic body part. The elastic body part includes an annular seal lip, an annular dust lip, and an annular side lip that extends toward an outer side on an outer periphery side of the dust lip. The side lip includes an annular middle portion that increases in diameter as progress toward the outer side and an annular distal end portion that is a portion connected to and on the outer side of the middle portion and that increases in diameter as progress toward the outer side. In the side lip, the distal end portion is bent to an inner periphery side from the middle portion. In the middle portion, at least one groove is formed annularly around an axis x.