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:
Jul. 14, 2015
Filed:
Jan. 20, 2011
Kouichirou Ishibashi, Tsukubamirai, JP;
Seiji Takanashi, Tsukubamirai, JP;
Motohiro Sato, Tsukubamirai, JP;
Kouichirou Ishibashi, Tsukubamirai, JP;
Seiji Takanashi, Tsukubamirai, JP;
Motohiro Sato, Tsukubamirai, JP;
SMC CORPORATION, Tokyo, JP;
Abstract
A damper hole having a large-diameter section is formed inside a body which is made of metal. A flange which fits in the large-diameter section is formed in a damper which is made of rubber and is received in the damper hole. The flange defines a cushion chamber in the large-diameter section. A gap for letting air restrictively discharge from the cushion chamber is formed between an outer periphery of the flange and an inner periphery of the large-diameter section. Motion energy of a moving object colliding with the damper is absorbed by both elasticity produced by the compressed damper and an air cushion effect produced by the flange and the cushion chamber.