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:
Jun. 30, 1987
Filed:
Mar. 06, 1986
Applicant:
Inventors:
Ikuo Uematsu, Katsuta, JP;
Toshio Takahashi, Katsuta, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
7386117 ; 73-3 ;
Abstract
An electromagnetic flow meter which performs a zero-point and span calibrating operation and an initial setting verifying operation in an inspection mode which is inserted on an interrupt basis at a certain frequency during a measurement mode. Flow measurement data in each inspection mode is calculated using measurement data preceding and/or following the inspection mode, whereby an inspection operation is implemented without leaving the flow measurement data indeterminate in each period of the inspection mode.