Seescan, Inc.

Seektech, Inc.

Deepsea Power & Light Company

Jan Soukup

Mark S Olsson

Ray Merewether

Stephanie M Bench

David A Cox

Justin W Taylor

James F Kleyn

Ryan B Levin

Jeffrey A Prsha

Inho Shin

Jesse O Casares

Michael J Martin

Michael E Turgeon

Allen P Hoover

Lisa E Latimer

Hunter Brown

Timothy M Turner

Alexander Logan Warren

Mark Frederick Fleming

Stephen M Bench

Edward N Denaci

Priscilla S McLaughlin

Jeffrey A Praha

Timothy Turner

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

Satellite and magnetic field sonde apparatus and methods

Location systems and methods for locating paint and other markings on a surface are disclosed. A paint marking stick may include a magnetic field sonde that is actuated in conjunction with dispensing of paint or other markers, where the sonde generates a magnetic field signal in conjunction with dispensing of paint or placement of a marker. A corresponding utility locator may receive the sonde magnetic field dipole signal and determine and store positional information and type information associated with the paint or other marker.

Trackable dipole devices, methods, and systems

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

Systems, devices, and methods for drain cleaning using high voltage, high frequency AC electrical power supplied through a video push-cable are disclosed. In one embodiment, a drain cleaning system may include a cable for carrying electrical control and/or data signals as well as alternating current (AC) power at a high voltage and high frequency relative to AC mains frequencies.

High frequency AC-powered drain cleaning and inspection apparatus and methods

Signal generation devices including an auto-tuning electronic circuit module for generating tuned output signals are disclosed. The auto-tuning electronic circuit module may include a tunable resonant electronic circuit element for providing a tuned output signal, including a voltage divider element and a tuning array element and control element.

Buried utility locator auto-tuning apparatus and methods

Electrical contact clips for use in utility locating operations to couple signals from a transmitter to a hidden or buried utility via direct electrical contact are disclosed.

Multifunction buried utility locating clips

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.

Growing community of inventors

San Diego, CA, United States of America

Jan Soukup