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:
Feb. 07, 2006
Filed:
Dec. 20, 2004
Yoshihiro Kogure, Gunma, JP;
Yoshihiro Kogure, Gunma, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a liquid level sensing apparatus, a rotating part is fixed with an arm. The arm is arranged to rotate in accordance with a liquid level. The rotating part is supported rotatably on a bearing portion of a housing. A magnet is housed in the rotating part. A magnetoelectric transducer element fixed to the housing is arranged to perform a magnetic detection to convert an intensity of a magnetic field produced by the magnet to an electric signal. The rotating part is formed with an exposure hole exposing a surface of the magnet. The exposed surface of the magnet is located out of a magnetic circuit subjected to the magnetic detection of the magnetoelectric transducer element.