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:
Jul. 01, 1986
Filed:
Feb. 19, 1982
Applicant:
Inventors:
Donald E Lorenzi, Des Plaines, IL (US);
Helmut F Wagerer, Des Plaines, IL (US);
Assignee:
Magnaflux Pipeline Services, Inc., Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01R / ; G01D / ;
U.S. Cl.
CPC ...
324220 ; 324226 ; 324240 ; 346 / ;
Abstract
A corrosion probe is disclosed which includes two permanent bar magnets in side-by-side relation, with opposite magnetic orientation and with poles of opposite polarity adjacent a sensing end of the probe, a sensing coil being disposed around the magnets adjacent the sensing end. The probe is disclosed in use in a pipe inspection pig for controlling operation of a camera.