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. 12, 1988
Filed:
Dec. 16, 1986
Yoshitaka Amata, Yokkaichi, JP;
Aichi Tokei Denki Co., Ltd., , JP;
Abstract
A magnetic field generating device for an electromagnetic flowmeter of the residual magnetization type which comprises a pair of first yokes having one of their end faces disposed opposite to each other on both sides of a magnetic gap including a fluid conduit of a non-magnetic material, a core disposed between the other end faces of the first yokes, a coil wound around the core, and at least one second yoke in direct contact with at least one of the first yokes and in direct contact with the associated end face of the core. The second yokes are made of a magnetic material having low electrical conductivity and high permeability. The core has an axial length shorter than that of the coil.