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:
Aug. 31, 2004
Filed:
Dec. 16, 2002
Norikazu Osawa, Tokyo, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Abstract
A Coriolis mass flowmeter has a vibration tube through which a fluid to be measured flows so that the flow of the fluid in cooperation with angular vibration of the vibration tube generates Coriolis force which causes vibratory deformation of the vibration tube. The vibration tube has a curved configuration which is point-symmetry with respect to the median point between an upstream fixed end and a downstream fixed end of the vibration tube and which has three inflection points, and performs, while maintaining the curved configuration, simple harmonic oscillation such that each point on the vibration tube oscillates on an arc of a predetermined radius from a reference axis which is a straight line interconnecting the upstream fixed end and the downstream fixed end of the vibration tube.