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. 30, 1985
Filed:
Apr. 18, 1983
Applicant:
Inventors:
Charles M Finley, Arcadia, CA (US);
Clifford G Moore, Arcadia, CA (US);
Assignee:
Rohrback Corporation, Santa Fe Springs, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324 / ;
Abstract
An all metal-welded flush electrical resistance probe for measuring corrosion of a fluid in a pipe avoids problems of sealing dissimilar materials by using a thin, metallic test disc that is welded around its periphery to the open end of a probe body which also mounts a reference element. The very thin test element is backed up by a solid supporting medium within the probe body, and resistance of the test disc is measured between a point at the disc periphery and a point nearer to the disc center.