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:
May. 21, 2019
Filed:
Jun. 24, 2014
Nok Corporation, Tokyo, JP;
Takuya Kato, Fukushima, JP;
Go Kanzaki, Fukushima, JP;
Kei Sasaki, Fukushima, JP;
Naoto Kobayashi, Fukushima, JP;
NOK Corporation, , JP;
Abstract
The object of the present invention is to effectively prevent the rust generation on a flange portion and to prevent the deformation of the flange portion due to the filling pressure of a molding material in the manufacture of a sealing device whereby a seal main body comprising a rubber-like elastic material and having a portion that covers both surfaces of the flange portion of a metal reinforcing ring is integrally formed on the reinforcing ring by means of a metal mold. To this end, the flange portion of the reinforcing ring is formed in advance with a shape which is distributed unevenly in the direction opposite the direction in which the flange portion is deformed from its original shape by the filling pressure of the molding material.