Seektech, Inc.

Seescan, Inc.

Deepsea Power & Light LLC

Thomas R Kolb

Mark S Olsson

Ray Merewether

Michael J Martin

David A Cox

Bradley D Barnicoat

Jeffrey A Prsha

Dawn E Shaffer

Randall P Hilton

At least one antenna array including three mutually orthogonal antennas each sharing a common center point senses an electromagnetic signal emitted by a buried object such as a utility line, pipe or sonde. A circuit at least partially mounted in a housing is connected to the array and determines a location of the buried object by measuring signal strength and field angles in three dimensions without having to align the antenna array relative to the buried object while eliminating nulls and false peaks. A graphical user interface (GUI) has user-friendly icons, symbols, menus, numbers and graphical and auditory representation of signal strength. A plurality of different underground objects can be simultaneously detected and their different locations can be simultaneously indicated to a user via audible sounds and/or visual images on a display.

Method for simultaneously determining a plurality of different locations of the buried objects and simultaneously indicating the different locations to a user

Single and multi-trace omnidirectional sonde and line locators and transmitter used therewith

At least one antenna array including three mutually orthogonal antennas each sharing a common center point senses an electromagnetic signal emitted by a buried object such as a utility line, pipe or sonde. A circuit at least partially mounted in a housing is connected to the array and determines a location of the buried object by measuring signal strength and field angles in three dimensions without having to align the antenna array relative to the buried object while eliminating nulls and false peaks. A graphical user interface (GUI) has user-friendly icons, symbols, menus, numbers and graphical and auditory representation of signal strength. A SEARCH view indicates signal strength by showing a rotating strength indicator, a trace mode MAP view in which line location is shown by a line that moves side-to-side, and a sonde mode MAP view in which sonde location is shown by a moving line, pole and equator.

Omnidirectional sonde and line locator

Growing community of inventors

San Diego, CA, United States of America

Thomas R Kolb