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. 29, 2002
Filed:
Oct. 30, 2000
Masaharu Ushihara, Osaka, JP;
Nobuharu Katsuki, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The pendulum assembly comprises a permanent magnet disposed in the vicinity of a pendulum, a U-shaped yoke by which most of the magnetic flux of the permanent magnet is gathered and passes through, and a rotation shaft. The direction of axis of the rotation shaft is parallel to the direction of magnetic poles of the permanent magnet. Eddy current brakes are inserted into the spaces between one of the magnetic poles of the permanent magnet and one of the ends of the yoke, and between the other magnetic pole the magnet and the other end of the yoke. This construction achieves a more compact and shorter tilt sensor which is resistant to disturbances such as geomagnetism and other magnetic fields and vibrations.