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:
Jan. 21, 2014
Filed:
Apr. 11, 2011
Russell Langley, Adair, OK (US);
James A. Huggins, Watts, OK (US);
John D. Carter, Catoosa, OK (US);
David Paulley, Milton Keynes, GB;
Keith R. Roberts, Manford, OK (US);
Darrell L. Davis, Broken Arrow, OK (US);
Michael E. O'neill, Tulsa, OK (US);
Steve D. Hayes, Tulsa, OK (US);
Dale G. Davis, Beggs, OK (US);
John D. Lindemann, Broken Arrow, OK (US);
Russell Langley, Adair, OK (US);
James A. Huggins, Watts, OK (US);
John D. Carter, Catoosa, OK (US);
David Paulley, Milton Keynes, GB;
Keith R. Roberts, Manford, OK (US);
Darrell L. Davis, Broken Arrow, OK (US);
Michael E. O'Neill, Tulsa, OK (US);
Steve D. Hayes, Tulsa, OK (US);
Dale G. Davis, Beggs, OK (US);
John D. Lindemann, Broken Arrow, OK (US);
CRTS, Inc., Tulsa, OK (US);
Abstract
There is provided herein a robot-based electrical system for locating holidays within coated pipe that does not utilize a grounding wire. In a preferred arrangement, the robot will carry a metal rotating brush/capacitive pad combination and changes in the capacitance in the brush/pad circuit will be used to identify imperfections in the interior coating of the pipe and especially those located proximate a girth weld. In another preferred embodiment, a circumferential brush will be used that allows testing of the integrity of the internal coating throughout the length of the pipe as the robot travels the pipeline.