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. 11, 2006
Filed:
Jul. 19, 2004
Hitoshi Ota, Tokyo, JP;
Akira Hashimoto, Tokyo, JP;
Shinichiro Yoshida, Tokyo, JP;
Yuji Nakahara, Tokyo, JP;
Hisanori Uozumi, Tokyo, JP;
Naoki Hashiguchi, Tokyo, JP;
Naoki Kajita, Tokyo, JP;
Hitoshi Ota, Tokyo, JP;
Akira Hashimoto, Tokyo, JP;
Shinichiro Yoshida, Tokyo, JP;
Yuji Nakahara, Tokyo, JP;
Hisanori Uozumi, Tokyo, JP;
Naoki Hashiguchi, Tokyo, JP;
Naoki Kajita, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A rotational machine includes a shaft, a rotary member rotatably mounted on the shaft with a bearing fitted between the shaft and the rotary member, an oil seal for sealing the bearing to prevent leakage of lubricant from inside the bearing through its axial end onto a surface of the rotary member, a brake which comes into sliding contact with a contact surface area formed on the surface of the rotary member for arresting rotation of the rotary member, a supporting member fixedly mounted on the shaft face to face with the rotary member forming a gap therebetween, the gap serving as a fluid path through which the lubricant which has leaked over the oil seal is allowed to flow, and an oil stop portion formed at a location in the gap between the oil seal and the contact surface area for impeding flow of the leaked lubricant.