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. 28, 1983
Filed:
Jan. 30, 1981
Applicant:
Inventor:
Shigeru Kajiyama, Hitachi, JP;
Assignees:
Hitachi Ltd., Tokyo, JP;
Babcock-Hitachi Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73637 ;
Abstract
An ultrasonic flaw detector is guided around a cylindrical pipe to be inspected by a cylindrical guide rail which is in the form of a split circular ring with a latch and a hinge. On the inner surface of the ring, geared bridge jacks are provided to secure the rings around the outer peripheral surface of the pipe. The ring is mounted to the peripheral surface of the pipe by turning a flexible wire rod connecting respective screws of the jacks. On the outer surface of the rings, a circular guide track and rack are arranged for engagement with the flaw detector.