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:
Sep. 15, 2015
Filed:
Sep. 23, 2014
Nok Corporation, Tokyo, JP;
Kokichi Hamamoto, Fukushima, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A sealing device with a lip edge portionand a sealing-space-opposite-side conical surfacewhose diameter increases from the lip edge portiontoward a sealing space B opposite side is formed on an inner peripheral surface of a seal lip, and a first thread ridgethat obliquely extends in a given direction with respect to a circumferential direction, a second thread ridgethat obliquely extends in a direction opposite to the direction in which the first thread ridgeobliquely extends, and a circumferential ridgethat extends in the circumferential direction while intersecting the first thread ridgeand the second thread ridgeare formed on the sealing-space-opposite-side conical surface