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:
Jun. 13, 2017
Filed:
May. 29, 2013
Smc Corporation, Chiyoda-ku, JP;
Eiko Miyasato, Moriya, JP;
Youji Takakuwa, Kitakatsushika-gun, JP;
Kodai Yoshinaga, Kashiwa, JP;
Tsuyoshi Mita, Moriya, JP;
Kouichi Matsuzaki, Tsukuba, JP;
Toshio Minakuchi, Abiko, JP;
Kazuhiro Iida, Toride, JP;
Junya Kaneko, Abiko, JP;
SMC CORPORATION, Chiyoda-ku, JP;
Abstract
A bidirectional shock absorber includes a cylinder housing including a liquid chamber, a shock-absorbing mechanism located inside the liquid chamber and supported by a rod sticking out of the cylinder housing. The shock-absorbing mechanism includes a pair of pistons located in the liquid chamber and attached to the rod on the respective sides of a liquid storage chamber constituting an accumulator, resistance paths formed between an outer circumferential surface of the pistons and an inner circumferential surface of a piston chamber, to apply flow resistance to the liquid, and unidirectional flow paths formed along the respective pistons and configured to block the liquid flow toward the liquid storage chamber when the corresponding piston is pressed toward the piston chamber, but to permit the liquid to flow in the opposite direction.