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, 2009
Filed:
Mar. 29, 2005
Takuzo Iwatsubo, Suita-shi, Osaka, 564-8680, JP;
Isao Shiromaru, Hiroshima, JP;
Makoto Tanaka, Hiroshima, JP;
Yoshibobu Akamatsu, Kuwana, JP;
Hideko Nagayasu, Legal Representative, Tokyo, JP;
Shingo Boda, Higashihiroshima, JP;
Takuzo Iwatsubo, Suita-shi, Osaka, 564-8680, JP;
Isao Shiromaru, Hiroshima, JP;
Makoto Tanaka, Hiroshima, JP;
Yoshibobu Akamatsu, Kuwana, JP;
Hideko Nagayasu, legal representative, Tokyo, JP;
Shingo Boda, Higashihiroshima, JP;
Chugoku Electric Power Co., Inc., Hiroshima-shi, JP;
Other;
Abstract
Degradation of the lubricant due to contamination of the lubricant with wear particles or moisture, which greatly affects the service life of rolling bearings, can be detected in a cost-effective manner through the use of a resonance frequency band signal or high-frequency signal of an accelerometer, and the service life of a rolling bearing can be estimated with high precision at an early stage on the basis of the detected state of the wear particles and lubricant.