1
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 ...


2
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 ...


3
Brian J Bischel, Mark Van Howelingen, Mark R Stelter, Trail Price, Peter C Rozendaal: Method and apparatus for attaching/detaching drill rod. Vermeer Manufacturing Company, Merchant & Gould P C, January 25, 2005: US06845825 (22 worldwide citation)

A control system for a drilling machine is disclosed. The drilling machine includes a rod driver for driving a string of rods into the ground, and for removing the string of rods from the ground. The drilling machine also includes a magazine for storing rods near the rod driver. A rod transfer mecha ...


4
Mark Van Houwelingen, Randy Runquist, Brian J Bischel, Mark R Stelter, Gregg A Austin: Directional drilling machine and method of directional drilling. Vermeer Manufacturing Company, Crawford PLLC, December 10, 2002: US06491115 (12 worldwide citation)

A system, apparatus and method for automatically limiting the thrust force applied to a drill string during an underground boring process, in order to prevent the deformation or collapse to the drill rods due to reaching the yield point of the rods. One or more drill string characteristics that have ...


5
Duane E Norby, Brian J Bischel, Steven Erickson, Gregg A Austin, Scott A Rempe: Automated lubricant dispensing system and method for a horizontal directional drilling machine. Vermeer Manufacturing Company, Crawford Maunu PLLC, May 6, 2003: US06557651 (12 worldwide citation)

A lubrication system and method for dispensing a lubricant to threads of a drill rod and/or a spindle of a horizontal directional drilling (HDD) machine during a rod loading or unloading operation employs a pumping system having a lubricant reservoir, a pump, an applicator, and a lubricant supply co ...


6
Mark Van Houwelingen, Randy Runquist, Brian J Bischel, Mark R Stelter, Gregg A Austin: Directional drilling machine and method of directional drilling. Steven R Funk, Altera Law Group, September 20, 2001: US20010022238-A1

A system, apparatus and method for automatically limiting the thrust force applied to a drill string during an underground boring process, in order to prevent the deformation or collapse to the drill rods due to reaching the yield point of the rods. One or more drill string characteristics that have ...


7
Kevin L Alft, Brian J Bischel, Gregg A Austin, Hans Kelpe: Underground drilling device employing down-hole radar. Vermeer Manufacturing Company, Crawford Maunu PLLC, December 23, 2004: US20040256159-A1

Devices 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 at the underg ...


8
Brian J Bischel, Mark Van Howelingen, Mark R Stelter, Trail Price, Peter C Rozendaal: Method and apparatus for attaching/detaching drill rod. Merchant & Gould PC, October 31, 2002: US20020157870-A1

A control system for a drilling machine is disclosed. The drilling machine includes a rod driver for driving a string of rods into the ground, and for removing the string of rods from the ground. The drilling machine also includes a magazine for storing rods near the rod driver. A rod transfer mecha ...


9
Kevin L Alft, Brian J Bischel, Gregg A Austin, Hans Kelpe: Real-time control system and method for controlling an underground boring machine. Vermeer Manufacturing Company, Mark A Hollingsworth, Altera Law Group, February 21, 2002: US20020020561-A1

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 ...


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 PLLC, March 27, 2003: US20030056983-A1

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 ...