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.:

US 7685878 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 30, 2010

Filed:

Jul. 25, 2007
Applicant:

Randel Brandstrom, Edmonton, Alberta, CA;

Inventor:

Randel Brandstrom, Edmonton, Alberta, CA;

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 29/04 (2006.01); G21C 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Two transducers to be rotated around a circumferential location on a cylindrical body for structural testing of the body are carried on a mounting and drive apparatus including a magnetic attachment which can be manually brought up to a pipe from one side only for fixed connection to the pipe on that side at a position axially spaced from a weld. A collar shaped support for the pair of transducers is formed of a row of separate segments which wrap around the pipe from the one side and is rotated around the axis of the pipe to carry the transducer around the circumferential weld. The segments carry rollers to roll on the surface and are held against the pipe by magnets. The transducers are carried on the support in fixed angular position to track their position but in a manner which allows slight axial or radial movement relative to the pipe.


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