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:
Sep. 19, 2006
Filed:
Mar. 11, 2005
Applicant:
Christopher R Loud, North Bend, WA (US);
Inventor:
Christopher R Loud, North Bend, WA (US);
Assignee:
Zetec, Inc., Issaquah, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A flexible shaft of nonrigid components for use in pushing an eddy current probe through small diameter pipe bends includes a thin-walled flexible outer sleeve enclosing a data cable helically coiled around a central inner core, typically of braided wire. The inner core is functionally incompressible and inextensible to sustain compressive forces derived from pushing the shaft through a pipe. The outer sleeve supported from within by the data cable and the inner core for sustaining lateral forces of pusher rollers is longitudinally even and smooth to advance the shaft without damage to it.