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. 19, 2019
Filed:
May. 15, 2015
Nok Corporation, Tokyo, JP;
Kokichi Hamamoto, Fukushima, JP;
Takehiro Nakagawa, Fukushima, JP;
Hideaki Nagahamaya, Fukushima, JP;
Shiho Sato, Fukushima, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A sealing device capable of preventing turnover of a dust lip and damage to a dust lip caused by insertion of a shaft. A bumper portion () made of a rubber-like elastic body and reducing an impact that the dust lip () receives from the shaft when the shaft is inserted into the sealing device () is provided on the side opposite to the sealed area (O) with respect to the dust lip (), and an inner diameter of a tip of the bumper portion () on an inner peripheral side is set to be larger than an outer diameter of a part of the shaft on which a main lip () and the dust lip () slide and to be smaller than an inner diameter of a part having the largest inner diameter in a portion connecting the main lip () and the dust lip ().