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. 23, 2010
Filed:
Mar. 17, 2005
Shinobu Munekata, Fukushima, JP;
Mitsugu Kobayashi, Fukushima, JP;
Shinobu Munekata, Fukushima, JP;
Mitsugu Kobayashi, Fukushima, JP;
NOK Corporation, Tokyo, JP;
Abstract
A sealing device for a reciprocating shaft capable of providing sufficient pressure tightness to a main lip and preventing troublesomeness of an assembling operation. The sealing device, which is interposed between a shaft and an outer peripheral member, includes a washer, a main lip integrally bonded to a sealed space side of the washer and slidably brought into close contact with an outer peripheral surface of the shaft, an auxiliary lip integrally formed in an outer peripheral side thereof, a backup ring fitted between an atmosphere side of a slidable surface of the main lip and an inner peripheral portion of the washer, and bearing the main lip from the atmosphere side and the inner peripheral side, a dust lip integrally bonded to the atmosphere side of the washer and slidably brought into close contact with the outer peripheral surface of the shaft, and an outer peripheral lip integrally bonded to an outer peripheral portion of the washer and brought into close contact with the outer peripheral member.