Electromagnetic apparatus used to generate or measure magnetic fields; apparatus in the nature of magnetic field antennas, electronic signal receivers, processors, namely, signal processors configured to process received magnetic field signals and determine information about utilities, and displays, namely, flat panel displays for displaying textual or graphical information about utilities; all of the aforementioned apparatus for detecting, displaying, and mapping hidden and buried conduits, pipes, electrical power lines, and other utilities by receiving and processing magnetic field signals emitted from the utilities; electronic apparatus for generating electric currents to be coupled to hidden and buried utilities so as to emit magnetic fields from the hidden and buried utilities, namely, electric current signal transmitters; electrical apparatus for conveying and distributing electric currents to be coupled to hidden and buried utilities so as to emit magnetic fields from the hidden and buried utilities; electrical couplers for directly, inductively, and capacitively coupling electrical currents to hidden and buried utilities; video camera systems for inspecting pipes and other underground cavities comprised of video cameras, camera control units, and display screens; lighting systems comprised of sensors, switches, and lights for illuminating the interior of pipes and other underground cavities; camera control units (CCUs) for controlling operation of video cameras deployed in pipes and underground cavities; buried utility magnetic locators for detecting buried conductors by sensing the magnetic field emitted therefrom; electronic utility locator transmitters for generating electric current signals for coupling to buried utilities directly or inductively; electromagnetic inductors for magnetically inducing current flow in hidden and buried conductors; downloadable software for mapping hidden and buried utilities; downloadable software for mapping pipes using image and video data; utility magnetic locators and downloadable software sold together as a unit for mapping utilities
Electrical and Scientific Apparatus