85161878
Oct 26, 2010
Jun 7, 2011
Active Trademark
hand-held electronic locators that determine and display the location of utilities buried underground and hidden in walls of structures based on electromagnetic emissions, comprising antennas connected to a housing enclosing battery powered electronic circuitry, electronic transmitters for applying signals to buried and hidden pipes and conduits for enabling their location, comprising electrical cords connected to battery powered circuitry enclosed in a housing; inductive couplers that connect to battery powered transmitters via electrical cords for applying locating signals to pipes and conduits; electronic sondes for insertion into pipes and conduits for emitting electromagnetic signals to aid in their location, comprising small battery radio frequency transmitters that are enclosed in housings; and video pipe inspection systems comprising a camera head mounted to the end of a push cable wound about a push reel
Electrical and Scientific Apparatus