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. 18, 1981
Filed:
Oct. 09, 1979
Applicant:
Inventors:
William R Freund, Jr, Hatfield, PA (US);
John C Grebe, Jr, Norristown, PA (US);
Assignee:
Emerson Electric Co., St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
7386112 ;
Abstract
The internal accuracy of a magnetic flowmeter signal processing chain is preserved throughout an extended flow range by means of an automatic ranging system which automatically multiplies the gain of an amplifier in the chain as the flow rate decreases, and simultaneously divides its output to produce an essentially continuous output signal. The automatic ranging system eliminates manual range setting and is not observable from outside the system in the steady state.