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:
Apr. 21, 1981
Filed:
Oct. 09, 1979
Applicant:
Inventors:
John C Grebe, Jr, Norristown, PA (US);
William R Freund, Jr, Hatfield, PA (US);
Assignee:
Emerson Electric Co., St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
7386117 ; 330-9 ;
Abstract
A magnetic flowmeter system includes an automatic zeroing system for a multiple stage amplifier. The zeroing system includes a circuit for sequencing the turn-off time of the zeroing amplifiers such that the first stage zeroing amplifier is turned off before later stages, thereby reducing the effects of zeroing errors introduced when the zeroing amplifier for the first stage signal amplifier is put into a hold state.