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. 21, 2008
Filed:
May. 17, 2004
Shigeki Koide, Niigata, JP;
Kiyoshi Enomoto, Niigata, JP;
Tadao Nakagawa, Niigata, JP;
Yoshiyuki Shimazaki, Niigata, JP;
Yoshihiro Kamimura, Niigata, JP;
Tetsuya Satoh, Niigata, JP;
Shigeki Koide, Niigata, JP;
Kiyoshi Enomoto, Niigata, JP;
Tadao Nakagawa, Niigata, JP;
Yoshiyuki Shimazaki, Niigata, JP;
Yoshihiro Kamimura, Niigata, JP;
Tetsuya Satoh, Niigata, JP;
Nippon Seiki Co., Ltd., Niigata, JP;
Abstract
The present invention provides an inexpensive small-sized liquid level detector. A liquid level detectorincludes a float moving in accordance with variations in liquid level, a hard circuit board, resistorsandprovided on the circuit board, a first sliding pathmade of a plurality of electrodesprovided on the circuit boardand connected to the resistorsand, and a first contactcoming into contact with the first sliding path, and the liquid level detectoroutputs an electrical signal based on the resistances of the resistorsandwhich are varied by the first contactcoming into contact with at least one of the plurality of electrodesforming the first sliding pathin accordance with a variation of the float. A second sliding pathelectrically connected to the first sliding pathis provided on the circuit board, a second contactcoming into contact with the second sliding pathis provided, and each of the first and second contactsandis electrically connected to an external circuit.