Seescan, Inc.

Seektech, Inc.

Deepsea Power & Light LLC

Emerson Electric Company

Rowe-deines Instruments, Inc.

Seesoon, Inc.

Seesean, Inc.

Seescxin, Inc.

Seesaw, Inc.

Deepsea Power & Lighting, Inc.

Ray Merewether

Mark S Olsson

Michael J Martin

David A Cox

Jan Soukup

Stephanie M Bench

Ryan B Levin

Sequoyah Aldridge

Paul G Stuart

Justin W Taylor

Jeffrey A Prsha

Austin Rutledge

Alexander Logan Warren

Dawn E Shaffer

Amos H Jessup

Michael E Turgeon

Jesse O Casares

Paul Wisecaver

Jon E Simmons

Inho Shin

Bradley D Barnicoat

Tran Nguyen

Eric M Chapman

John Russell Sanderson, Iv

Roger B Shaffer

Christoph Hans Maier

Stephen M Bench

Loni M Heyenbruch

Thomas R Kolb

Brian Peter Lakin

Kevin Richard Hardy

Edward N Denaci

George L Jemmott

Timothy M Turner

Randall P Hilton

Kenneth A Steeves

Michael J Rutkowski

Aaron J Steiner

Paul W Gress

Mark Frederick Fleming

Lisa E Latimer

Loni M Canepa

Philip Eisermann

Matthew J Thompson

Zachary B Simmons

Scott A Powell

John R Sanderson

Ronan T Gray

Jeffrey A Praha

Lucas John Zipp

Thomas K Kolb

Alex L Warren

Dawn E Schaffer

Michael Martin

Timothy Turner

M Stephanie Bench

B Ryan Levin

S Mark Olsson

Magnetic field cancelling audio systems and associated devices are disclosed. In one embodiment, an audio system with two electromagnetic audio drivers positioned and electrically connected to reduce emitted magnetic fields over a range of predefined frequencies.

Magnetic field cancelling audio devices

An antenna apparatus includes a magnetic field sonde and a satellite location system antenna node.

Satellite and magnetic field sonde apparatus and methods

Buried utility transmitters and associated locator devices, systems, and methods used for locating utility lines, pipes, and/or other conductors that are obscured from view are disclosed.

Utility locator transmitter devices, systems, and methods

Omnidirectional electromagnetic signal inducer (omni-inducer) devices are disclosed. The omni-inducer device may include a housing, which may include a conductive base for coupling signals to ground, and an omnidirectional antenna node including a plurality of antenna coil assemblies, where the node may be disposed on or within the housing. The omni-inducer device may further include one or more transmitter modules for generating ones of a plurality of output signals, which may be generated at ones of a plurality of different frequencies, and one or more control circuits configured to control the transmitters and/or other circuits to selectively switch the ones of the plurality of output signals between ones of the plurality of antenna coil assemblies.

Omni-inducer

Sonde devices for providing magnetic field signals for use with utility locators or other devices are disclosed. In one embodiment a sonde device includes a housing, a core comprising a plurality of core sections, and one or more support structures, which may include windings. Circuit and/or power supply elements may be disposed fully or partially within the core to control generation of predefined magnetic field frequencies and waveforms.

Sonde devices

Self-leveling inspection system methods and devices for use in inspecting buried pipes or other cavities are disclosed. The system includes a camera head with an image sensor, an orientation sensor, and a signal processing module including a processing programmed to receive an image from the image sensor, and an orientation signal from the orientation sensor, generate a second image based at least in part on information provided from the orientation sensor, and store the second image in a non-transitory memory.

Self-leveling inspection systems and methods

Buried utility locators including a locator body and twelve antenna coils are disclosed.

Buried object locator apparatus including twelve nodes

Buried object locator systems including transmitters and associated buried object locators using phase-synchronized signals are disclosed. A transmitter may generate output current signals that are phase-synchronized with a timing reference for detection by a corresponding buried utility locator that is phase-synchronized with a second timing reference.

Phase-synchronized buried object transmitter and locator methods and apparatus

Sonde devices for providing magnetic field signals for use with utility locators or other devices are disclosed. In one embodiment a Sonde device includes a housing, a core comprising a plurality of core sections, and one or more support structures, which may include windings. Circuit and/or power supply elements may be disposed fully or partially within the core to control generation of predefined magnetic field frequencies and waveforms.

Sonde devices with a sectional core

A method for locating buried utilities in a utility locator is disclosed. The method may include receiving, at an antenna array for receiving magnetic field signals, a plurality of magnetic field signals at predefined signal frequencies in a predefined frequency suite, generating, in a receiver coupled to an output of the antenna array, a first receiver output signal, generating, in a processing element coupled to the receiver, a first set of data associated with the two or more signal components, and storing, in a non-transitory memory of the locator, the first set of data.

Locating devices, systems, and methods using frequency suites for utility detection

Antenna systems for receiving right and left hand circularly polarized signals are disclosed. An antenna system embodiment includes a top printed circuit board (PCB), a ground plane, and an antenna array including four conductive antenna elements positioned at relative zero, 90, 180, and 270 degree increments radially about a shared center point on the PCB, with each antenna element sloping upward in a left-handed direction from the ground plane towards the top PCB and connected to the ground plane and top PCB.

Antenna systems for circularly polarized radio signals

Sonde devices including a sectional ferrite core structure

Pipe inspection systems are disclosed. In one embodiment a pipe inspection system includes a camera head, a push-cable, a cable storage drum, and a wireless transmitter configured to automatically capture images or video frames and transmit them to an external device.

Pipe inspection system camera heads

Utility locators with various antenna configurations for detecting buried objects or otherwise inaccessible pipes and other conduits, cables, conductors and inserted transmitters are disclosed. In one embodiment, a locator includes a body with a mast and head unit, one or more dodecahedral antenna nodes coupled to or on or within the body, and a camera disposed on or within the body. The camera may be a still camera, a video camera, or both. The locator may also include one or more GPS sensors coupled to one or more GPS antennas.

Buried object locator with dodecahedral antenna configuration apparatus and methods

Growing community of inventors

La Jolla, CA, United States of America

Ray Merewether