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:
Dec. 03, 2013
Filed:
Nov. 07, 2011
Sigeru Matsumoto, Musashino, JP;
Hiroshi Miyashita, Tama, JP;
Kazuyoshi Tashiro, Sagamihara, JP;
Kazuhiro Murauchi, Hachioji, JP;
Mitsuo Kakuta, Sagamihara, JP;
Sigeru Matsumoto, Musashino, JP;
Hiroshi Miyashita, Tama, JP;
Kazuyoshi Tashiro, Sagamihara, JP;
Kazuhiro Murauchi, Hachioji, JP;
Mitsuo Kakuta, Sagamihara, JP;
Kokusai Keisokuki Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided a hydraulic system, including an oil tank storing operating oil, a hydraulic actuator, and a hydraulic pump which draws the operating oil from the oil tank and supplies the operating oil to the hydraulic actuator. The hydraulic system is provided with an operating oil separating unit which is located at a midway point of a main tube sending the operating oil from the hydraulic pump to the hydraulic actuator and which separates a part of the operating oil supplied from the hydraulic pump to return the part of the operating oil to the oil tank. A universal testing machine including the hydraulic system is also provided.