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. 15, 2012
Filed:
Mar. 27, 2007
Shunsuke Okabayashi, Sagamihara, JP;
Ken Hayashi, Toyota, JP;
Shunsuke Okabayashi, Sagamihara, JP;
Ken Hayashi, Toyota, JP;
Nifco Inc., Kanagawa, JP;
Abstract
In a rotary damper capable of being easily assembled by reducing the remaining air inside an accommodation portion and reducing the non-uniformity of damping torque, a center shaftis provided in the center of a fixing and supporting member, an inner cylinder wallinto which the center shaftis inserted rotatably is provided in a driven rotation member, an O ringwhich prevents the leakage of viscous fluidfrom between the driven rotation memberand the fixing and supporting memberis provided, a first pathwhich enables the accommodation portionto communicate with its outside is provided between the center shaftand an inner circumference face of the inner cylinder wall, and a holewhich allows the bottom side of the O ringinside the accommodation portionto communicate with the first pathis provided in the driven rotation member