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. 11, 2010
Filed:
Jun. 14, 2006
Kiyoshi Enomoto, Niigata, JP;
Koichi Sato, Niigata, JP;
Kiyoshi Enomoto, Niigata, JP;
Koichi Sato, Niigata, JP;
Nippon Seiki Co., Ltd., Niigata, JP;
Abstract
The present invention provides a liquid surface detection devicein which corrosion is restrained even when liquid having conductivity is used so that a longer lifespan is achieved, including a liquid surface detection sensorthat outputs a signal indicating a variation in liquid level as a variation in resistance value by the sliding movement of a contact pointon an electrode connected to a resistor, and a control unitthat controls supply and stops a supply of electric power to the liquid surface detection sensorat predetermined intervals, in which a vehicle state determination unit that determines a state of a vehicle is provided and the control unitcontrols the duration to stop the supply of electric power to the liquid surface detection sensorwhen the vehicle state determination unit determines that the vehicle is in a traveling state.