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:
Feb. 13, 1990
Filed:
Mar. 08, 1989
Toshihide Inami, Tokyo, JP;
Tsutomu Goto, Tokyo, JP;
Yamatake-Honeywell Co., Ltd., Tokyo, JP;
Abstract
An electrode structure for an electromagnetic flowmeter includes a ceramic measuring pipe, an insertion electrode, a press member, and inner and outer gaskets. The electrode has a large-diameter liquid contact end exposed inside the ceramic measuring pipe and an electrode shaft inserted into the electrode insertion hole from the inside of the ceramic measuring pipe. The press member is fitted on the electrode shaft extending outside the ceramic measuring pipe and opposes the electrode liquid contact end through the wall of the ceramic measuring pipe. The press member has a groove adjacent to the insertion electrode on a side which is in contact with the outer surface of the ceramic measuring pipe. The groove is defined by a tapered surface whose diameter is increased toward the ceramic measuring pipe. The inner gasket contacts a surface of the electrode liquid contact end which is in contact with the inner wall surface of the ceramic measuring pipe. The outer gasket is fitted in a space defined by the groove of the press member, the outer surface of the ceramic measuring pipe, and the insertion electrode in the groove so as to be urged against the outer surface of the ceramic measuring pipe. Points of forces acting on the inner and outer surfaces of the ceramic measuring pipe are substantially aligned with each other when the inner and outer gaskets are fastened.