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:
Oct. 17, 2006
Filed:
Oct. 26, 2004
Masahiro Tosen, Fukushima, JP;
Tatsuya Futami, Fukushima, JP;
Kenji Kanemaru, Kanagawa, JP;
Yoshiaki Yamamoto, Kanagawa, JP;
Masahiro Tosen, Fukushima, JP;
Tatsuya Futami, Fukushima, JP;
Kenji Kanemaru, Kanagawa, JP;
Yoshiaki Yamamoto, Kanagawa, JP;
Komatsu Ltd., Tokyo, JP;
Komatsu Zenoah Co., Saitama, JP;
Abstract
In a hydraulic cylinder having a shock absorbing function, and capable of stopping as desired by an accumulator disposed within a cylinder rod. The accumulator includes an accumulator piston that divides the cylinder rod interior into first and second cylinder rod chambers, gas hermetically charged into the second cylinder rod chamber, and an accumulation port that is communicated with the first cylinder rod chamber and flows the operating oil from outside into the first cylinder rod chamber.