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:
Mar. 18, 2014
Filed:
Jul. 12, 2010
Tae-joon Hwang, North York, CA;
Corry Comello, North York, CA;
Bill O'brien, North York, CA;
Paul Laursen, North York, CA;
Tae-Joon Hwang, North York, CA;
Corry Comello, North York, CA;
Bill O'Brien, North York, CA;
Paul Laursen, North York, CA;
Enbridge Gas Distribution Inc., North York, CA;
Abstract
A device, system and method of locating a target pipe in a pipe system utilizes an electric signal transmitter and an electrical signal detector. A pipe locator signal conductor comprises a spool and a flexible insulated electrical conductor wound around the spool. The exposed end of the conductor is fixed near an entry point in the pipe system, and the spool is fed into the pipe system such that the conductor pays off of the spool and extends at least partially through the target pipe. The signal transmitter is coupled to the exposed end of the conductor, transmitting a signal through the conductor and allowing the pipe to be located by the signal detector.