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:
Mar. 20, 2018
Filed:
Nov. 11, 2014
Nok Corporation, Tokyo, JP;
Hikaru Tadano, Fujisawa, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A sealing device suppresses deterioration of sealing properties due to plastic deformation (settling) of an outer circumferential lip, including a packing () having an outer circumferential lip () provided on a sealed fluid side and an inner circumferential lip () on an inner circumferential side, and a metal spring member () mounted in a mounting groove () and having an outer circumferential pressing portion () that extends radially outward and toward the sealed fluid side from a groove bottom of the mounting groove () and presses the outer circumferential lip () radially outward, and an inner circumferential pressing portion () that extends radially inward and toward the sealed fluid side from the groove bottom of the mounting groove () and presses the inner circumferential lip () radially inward. Among the outer circumferential lip () and the inner circumferential lip (), a protrusion () for preventing the spring member () from coming off is provided only on the inner circumferential lip ().