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:
Dec. 14, 1993
Filed:
Mar. 20, 1992
Applicant:
Inventor:
Akira Komoto, Otsu, JP;
Assignee:
Shimadzu Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01G / ; G01G / ;
U.S. Cl.
CPC ...
177212 ; 1772 / ;
Abstract
An electric balance which allows a pulse current to flow through a force coil with pulses having two kinds of duties for each period of control time, and generates an electromagnetic force at the ratio of mixture of these pulses wherein the duties are controlled so as to bring the electromagnetic force into equilibrium with a load weight, thereby enhancing the resolution of pulse current duty and achieving the production of a high-resolution electronic balance at a reduced cost.