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:
May. 10, 2016
Filed:
Feb. 24, 2012
Yukio Matsubara, Kuwana, JP;
Noriaki Miwa, Kuwana, JP;
Takakazu Kitagawa, Iwata, JP;
Tomoya Sakaguchi, Kuwana, JP;
Masayuki Kawakita, Kuwana, JP;
Hisamitsu Maeda, Iwata, JP;
Yukio Matsubara, Kuwana, JP;
Noriaki Miwa, Kuwana, JP;
Takakazu Kitagawa, Iwata, JP;
Tomoya Sakaguchi, Kuwana, JP;
Masayuki Kawakita, Kuwana, JP;
Hisamitsu Maeda, Iwata, JP;
NTN CORPORATION, Osaka, JP;
Abstract
A status monitoring system for accurately determining the contaminant water concentration in a lubricant oil used in a rolling device includes a contaminant water concentration monitoring device configured to monitor the contaminant water concentration in the lubricant oil. The contaminant water concentration monitoring device includes an electrostatic capacitance detector and an oil temperature measuring instrument, which are configured to detect the electrostatic capacitance and the oil temperature of the lubricant oil, respectively, and a water concentration calculation section configured to calculate the contaminant water concentration from the detected electrostatic capacitance and oil temperature in accordance with a predetermined rule.