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:
Jun. 23, 1981
Filed:
Jan. 04, 1979
George W Norris, Wilkins Twp., Allegheny County, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
Apparatus for remote inspection of annular curved ridge welds securing plugs in heat transfer tubes in a nuclear steam generator. Included in such apparatus is a small sized television camera, an annular image transformation lens of greater size than the observed weld for presenting a flattened expanded image of such weld to the camera, a circular array of work-illumination lamps at the input end of the camera, and a hollow cylindrical light conductive member mounted at its one end on the input end of the camera in exposure to the lamps and mounting the image transformation lens on its opposite end for proximity to the annular weld being inspected.