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:
Aug. 12, 2003
Filed:
Jan. 17, 2002
Kazumasa Kurihara, Fujisawa, JP;
Masanobu Kawamoto, Yokohama, JP;
Masayuki Nishiyama, Chigasaki, JP;
Nifco Inc., Yokohama, JP;
Abstract
A rotary damper includes a housing having an annular groove with an inlet portion, and a rotor having a main annular portion to be inserted into the annular groove and a cap portion attached at one side of the main annular portion. The main annular portion is inserted into the annular groove to form a space therein so that the cap portion closes the annular groove. A plurality of sealing members is situated on inner and outer sides of the main annular portion for sealing the space, and a viscous fluid is filled in the space. An engaging shoulder portion is provided on one of the housing and rotor, and an engaging portion is provided on the other of the housing and rotor for engaging said engaging shoulder portion.