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:
Sep. 27, 1977
Filed:
Jun. 21, 1976
Louis Guy Millette, Pointe Claire, CA;
Peter Murphy, Longueuil, CA;
Georges Michel Miller, Chateauguay, CA;
Northern Telecom Limited, Montreal, CA;
Abstract
A measuring head using the electrical inductive principle has at least one probe with a surface for presentation to a surface of a non-metallic coating over an arcuate metallic surface, the thickness of which coating is to be measured. To offset the varying inductive effects caused by variations in diameter of the article being measured, the surface of the probe is profiled--having a Vee shaped profile. The profile is such that articles, such as cables, of smaller diameter enter the Vee shaped profile deeper than larger diameter articles. By this means only variations in inductive effect resulting from variations in coating thickness occur.