1
Gary Neal Young, Kevin L Alft: Utility mapping and data distribution system and method. Vermeer Manufacturing Company, Crawford Maunu PLLC, June 15, 2004: US06751553 (176 worldwide citation)

A system and method of mapping underground utilities and other subsurface objects involves one or more of acquiring utility location data using a number of different detectors and sensors, processing the multiple detector/sensor output data to produce mapping data, storing the mapping data in a data ...


2
Gary Neal Young, Kevin L Alft: Utility mapping and data distribution system and method. Vermeer Manufacturing Company, Hollingsworth & Funk, July 15, 2008: US07400976 (149 worldwide citation)

A system and method of mapping underground utilities and other subsurface objects involves one or more of acquiring utility location data using a number of different detectors and sensors, processing the multiple detector/sensor output data to produce mapping data, storing the mapping data in a data ...


3
Gary Neal Young, Kevin L Alft: Underground utility detection system and method. Vermeer Manufacturing Company, Hollingsworth & Funk, December 13, 2005: US06975942 (148 worldwide citation)

Systems and methods provide for detection of one or more underground utilities. Radar waves and seismic waves of about the same wavelength are generated and communicated into a subsurface. Radar and seismic response signals resulting from communication of the radar and seismic waves into the subsurf ...


4
Kevin L Alft, Gregory W Draper, Hans Kelpe: Horizontal directional drilling machine and method employing configurable tracking system interface. Vermeer Manufacturing Company, Crawford PLLC, November 26, 2002: US06484818 (120 worldwide citation)

A system and method for controlling an underground boring tool involves the use of one or more of a gyroscope, accelerometer, and magnetometer sensor provided in or proximate the boring tool. The location of the boring tool is detected substantially in real-time. A controller produces a control sign ...


5
Kevin L Alft, Gregory W Draper: Horizontal directional drilling machine employing inertial navigation control system and method. Vermeer Manufacturing Company, Altera Law Group, November 13, 2001: US06315062 (119 worldwide citation)

A system and method for controlling an underground boring tool involves the use of one or more of a gyroscope, accelerometer, and magnetometer sensor provided in or proximate the boring tool. The location of the boring tool is detected substantially in real-time. A controller produces a control sign ...


6
Kevin L Alft: Real-time control system and method for controlling an underground boring machine. Vermeer Manufacturing Company, Altera Law Group, October 30, 2001: US06308787 (95 worldwide citation)

Systems and methods for controlling an underground boring tool involve rotating the boring tool and sensing a parameter of boring tool rotation. The boring tool is also displaced along an underground path and a parameter of boring tool displacement is sensed. Various sensors monitor boring machine a ...


7
Kevin L Alft, Fred G Delonti, Christopher Dean Rettig, Paul A Cartwright: Automated bore planning method and apparatus for horizontal directional drilling. Vermeer Manufacturing Company, Altera Law Group, May 14, 2002: US06389360 (66 worldwide citation)

A system, method, and computer-readable media provide for electronic development of a bore plan for use in connection with an underground boring machine. Electronically developing a bore plan involves receiving topographical information representative of topography of the bore site, receiving utilit ...


8
Kevin L Alft, Brian J Bischel, Gregg A Austin, Hans Kelpe: Excavation system and method employing adjustable down-hole steering and above-ground tracking. Vermeer Manufacturing Company, Crawford Maunu PLLC, October 29, 2002: US06470976 (46 worldwide citation)

Systems and methods for controlling an underground boring tool involve rotating the boring tool and sensing a parameter of boring tool rotation. The boring tool is also displaced along an underground path and a parameter of boring tool displacement is sensed. Various sensors monitor boring machine a ...


9
Kevin L Alft, Gregory W Draper, Hans Kelpe: Underground boring machine employing navigation sensor and adjustable steering. Vermeer Manufacturing Company, Crawford Maunu PLLC, April 13, 2004: US06719069 (35 worldwide citation)

An excavation system includes a cutting tool coupled to a drill pipe, an adjustable steering mechanism provided on or in the cutting tool, and a driving apparatus coupled to the drill pipe for moving the cutting tool along an underground path. The system further includes a navigation sensor system a ...


10
Kevin L Alft, Brian J Bischel, Gregg A Austin, Hans Kelpe: Underground drilling device and method employing down-hole radar. Vermeer Manufacturing Company, Crawford Maunu PLLC, June 29, 2004: US06755263 (35 worldwide citation)

Systems and methods for sensing at an underground drilling device in communication with an above-ground locator involve transmitting a radar probe signal from the underground drilling device. A radar return signal is received at the underground drilling device. The radar return signal is processed a ...