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:
Oct. 13, 2009
Filed:
Jul. 03, 2006
Hisashi Sasaki, Aichi, JP;
Shinichi Hayashi, Aichi, JP;
Hisashi Sasaki, Aichi, JP;
Shinichi Hayashi, Aichi, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
Capacitive liquid condition sensing apparatus includes a pair of a-electrode and a-electrode arranged to form a first capacitance; a pair of a-electrode and a-electrode arranged to form a second capacitance; a circuit board formed with a sensing circuit to sense the liquid condition such as a liquid level in accordance with the first and second capacitances; and---and-conductive paths connecting the---and-electrodes, respectively, to the sensing circuit, and including---and-conductive segments, respectively. The---and-conductive segments are arranged in a row, and extend side by side. The---and-conductive segments are arranged so that a first parasitic capacitance formed between the-conductive segment and the-conductive segment is equal to a second parasitic capacitance formed between the-conductive segment and the-conductive segment.