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, 1999
Filed:
Aug. 29, 1997
Osamu Kashimura, Tokyo, JP;
Hironobu Yao, Tokyo, JP;
Fuji Electric Co., Ltd., Kawasaki, JP;
Abstract
A mass flowmeter for measuring the flow rate of a fluid by generating a Coriolis force in a measuring pipe includes a housing and a mechanism for supporting the pipe in the housing. The support mechanism includes a generally cylindrical hollow beam and first and second end support members. The measuring pipe is supported inside the hollow beam by the end support members. A vibrator for vibrating the measuring pipe and two sensors for detecting these vibrations are provided in the housing. The effective vibrating length of the measuring pipe is set shorter than the effective vibrating length of the support mechanism so as to set the vibration frequency of the measuring pipe higher than the natural frequency of the support mechanism, without reducing the rigidity of the support mechanism or using any additional mass.