| Patent Number |
Title Of Patent |
Date Issued |
| RE38418 |
Dual member pipe joint for a dual member drill string |
February 10, 2004 |
| A dual-member pipe joint having an outer member and an inner member which is disposed coaxially within the outer member. Both the outer member and the inner member have a pin end and a box end. The pin end of the outer member is threadable to the box end of another outer member. The pin |
| RE37975 |
Directional boring head with blade assembly |
February 4, 2003 |
| A directional boring machine equipped with a boring head comprising a blade assembly. The blade assembly may comprise a plurality of blades with deflecting surfaces. Alternately, the blade assembly has a single, stepped or serrated blade. The serrated blade assembly has a planar blade wh |
| RE37923 |
Hydraulic circuit for automatic control of a horizontal boring machine |
December 10, 2002 |
| A hydraulic circuit (10) is disclosed for use in controlling a horizontal boring machine which requires hydraulic fluid under pressure for rotating a drill bit or backreamer through a rotation circuit and hydraulic fluid under pressure for thrusting the drill bit or backreamer within the |
| RE37450 |
Directional multi-blade boring head |
November 20, 2001 |
| Directional boring bits (1100, 1200) are disclosed which have at least one roller cone (1202, 1104) and also each define a deflecting surface (1104) for deflecting the boring bit when the bit is advanced without rotation. The borehole can be curved by pushing the bit forward without rota |
| D579955 |
Two wheel articulated tool carrier chassis |
November 4, 2008 |
|
| D579464 |
Three-wheel articulated trencher |
October 28, 2008 |
|
| D579357 |
Bi-pod tracker |
October 28, 2008 |
|
| D572730 |
Four wheel articulated tool carrier |
July 8, 2008 |
|
| D572275 |
Articulated tool carrier with tower arm |
July 1, 2008 |
|
| D572274 |
Articulated dumper |
July 1, 2008 |
|
| D571827 |
Two wheel articulated tool carrier chassis |
June 24, 2008 |
|
| D538305 |
Excavator tool carrier with cab |
March 13, 2007 |
|
| D527027 |
Excavator tool carrier |
August 22, 2006 |
|
| D328439 |
Electromagnetic radiated signal receiver |
August 4, 1992 |
|
| D328257 |
Electromagnetic radiated signal transmitter |
July 28, 1992 |
|
| 7413031 |
Apparatus and method for maintaining control of a drilling machine |
August 19, 2008 |
| An apparatus is provided for maintaining control of a machine which produces thrust, rotation or other outputs in response to input signals. The apparatus has two distinct parts, namely the operator input portion and the output portion. The operator input portion consists of the prim |
| 7392858 |
Remote control for a drilling machine |
July 1, 2008 |
| A method and apparatus for remotely controlling a machine. A remote operator controls a tracking device including a signal system for selectively emitting a remote enable signal. The remote enable signal is relayed to a control system for the machine. The control system is proximate |
| 7389831 |
Dual-member auger boring system |
June 24, 2008 |
| A system for boring horizontal boreholes and installing products using a dual member drill string. The system is comprised of a boring machine with a frame and a rotary drive supported on the frame, a downhole tool, and a dual member drill string. The drill string comprises an inner |
| 7373993 |
System and method for locating and tracking a boring tool |
May 20, 2008 |
| A system for monitoring the position and orientation of a downhole tool assembly having multiple beacons. In a preferred embodiment the first and second beacons are supported by the downhole tool assembly. Both beacons are adapted to transmit signals that are indicative of the orientatio |
| 7353889 |
Rotary driven pipe-bursting tool |
April 8, 2008 |
| An apparatus for bursting pipe is preferably adapted to receive rotational energy from the inner member of a dual-member drill string. In a preferred embodiment, a plurality of pipe-bursting members, driven by the interconnected inner members, cut or burst a subterranean pipe. In ano |
| 7350594 |
System and method for tracking and communicating with a boring tool |
April 1, 2008 |
| A system for determining the location of and communicating with a downhole tool assembly. A tracker assembly comprises a vertical transmitting antenna, a plurality of receiving antennas, and a processor. The downhole tool assembly has a beacon assembly comprising a plurality of receiving |
| 7347283 |
Using a rotating inner member to drive a tool in a hollow outer member |
March 25, 2008 |
| A rotating inner member is used to drive a downhole tool housed within the hollow outer member of a dual-member drill string. The downhole tool preferably will be adapted to receive rotational energy from the inner member. In a preferred embodiment, the downhole tool is an electric g |
| 7331409 |
Configurable beacon and method |
February 19, 2008 |
| A monitoring system is used to monitor the location and orientation of a downhole tool assembly by detecting an output signal. The downhole tool assembly has a beacon assembly with one or more configurable operation parameters. A transmitting assembly transmits an operation instruction |
| 7251567 |
Electronically calibrated beacon for a horizontal directional drilling machine |
July 31, 2007 |
| A monitoring system for use with a horizontal directional drilling machine and adapted to determine the roll and/or pitch orientation of the downhole tool assembly by detecting signals from a sensor assembly supported by the downhole tool assembly. In a preferred embodiment, the moni |
| 7240742 |
Pipe handling system with a movable magazine |
July 10, 2007 |
| An pipe handling assembly for transporting pipe sections to and from a horizontal boring machine. The system comprises a movable magazine, a support member, a drive system, and a transfer assembly. The drive system may move the magazine laterally on the support member or may pivot the |
| 7216724 |
Coupling for dual member pipe |
May 15, 2007 |
| A coupling assembly to interconnect an inner member and an outer member of a dual member drill string in torque transmitting engagement is disclosed. The coupling assembly is adapted to transmit torque input from both members to a downhole tool. In one embodiment, the coupling assembly |
| 7201236 |
Apparatus and method for tracking multiple signal emitting objects |
April 10, 2007 |
| A portable area monitoring system for use with a horizontal directional drilling machine and adapted to produce a composite of the positions of a beacon and a fixed object. In a preferred embodiment the sensor assembly is supported by a hand-held frame and adapted to detect signals emana |
| 7195079 |
Directional reaming system |
March 27, 2007 |
| A horizontal directional drilling system is used to drive operation of a guidable reamer assembly connected to a drill string. The guidable reamer assembly preferably has a cutting member with a central longitudinal axis and a support member also having a central longitudinal axis. The |
| 7150331 |
System and method for tracking and communicating with a boring tool |
December 19, 2006 |
| A system for determining the location of and communicating with a downhole tool assembly. A tracker assembly comprises a vertical transmitting antenna, a plurality of receiving antennas, and a processor. The downhole tool assembly has a beacon assembly comprising a plurality of receiving |
| 7111693 |
System and method for locating and tracking a boring tool |
September 26, 2006 |
| A system for monitoring the position and orientation of a downhole tool assembly having multiple beacons. In a preferred embodiment the first and second beacons are supported by the downhole tool assembly. Both beacons are adapted to transmit signals that are indicative of the orientatio |
| 7038454 |
System and method for detecting an underground object using magnetic field sensing |
May 2, 2006 |
| A system and method use magnetic field sensing to detect underground objects for strike avoidance. The system detects magnetic field components for both passive distortions in the magnetic field indicative of a ferromagnetic object and active magnetic fields that are impressed on an |
| 7025152 |
Using a rotating inner member to drive a tool in a hollow outer member |
April 11, 2006 |
| A rotating inner member is used to drive a downhole tool housed within the hollow outer member of a dual-member drill string. The downhole tool preferably will be adapted to receive rotational energy from the inner member. In a preferred embodiment, the downhole tool is an electric g |
| 7018164 |
Auxiliary pipe loading device |
March 28, 2006 |
| A pipe handling device with an auxiliary pipe loading device for use with a horizontal boring machine is disclosed. The auxiliary pipe loading device includes an auxiliary pipe receiving member that is connected to a pipe handling assembly at a location remote from the boring machine. Th |
| 7013990 |
Apparatus and method for simultaneously locating a fixed object and tracking a beacon |
March 21, 2006 |
| A portable area monitoring system for use with a horizontal directional drilling machine and adapted to produce a composite of the positions of a beacon and a fixed object. In a preferred embodiment the sensor assembly is supported by a hand-held frame and adapted to detect signals emana |
| 7011166 |
System and method for assisting with automatically connecting pipe joints with a horizontal bori |
March 14, 2006 |
| An automatic pipe handling system for automatically transporting pipe sections to and from a horizontal boring machine. The system comprises a pipe handling assembly, a pipe lubrication assembly, a makeup/breakout assembly, and an automatic control system. The pipe handling assembly |
| 7000710 |
Automatic path generation and correction system |
February 21, 2006 |
| A method for generating a new or corrected horizontal underground bore path from a point below ground for use with a horizontal boring machine. In the preferred embodiment, orientation and depth measurements for a boring tool located below ground are recorded. The current position of |
| 6871712 |
Remote control for a drilling machine |
March 29, 2005 |
| A method and apparatus for remotely controlling a machine. A remote operator controls a tracking device including a signal system for selectively emitting a remote enable signal. The remote enable signal is relayed to a control system for the machine. The control system is proximate |
| 6848506 |
Rotary driven retrieval tool for horizontal directional drilling operations |
February 1, 2005 |
| A rotating inner member is used to drive operation of a retrieval tool connected to a dual-member drill string. The retrieval tool preferably has a gripping assembly adapted to receive rotational energy from the inner member. In a preferred embodiment, an electric actuator assembly opera |
| 6832443 |
Cutting chain |
December 21, 2004 |
| The invention is directed to an endless cutting chain for an underground trenching assembly that has a plurality of cutter links with a strap link joining adjacent cutter links. Each cutter link has a pair of side plates and a support member bridging the side plates. The support member h |
| 6827158 |
Two-pipe on-grade directional boring tool and method |
December 7, 2004 |
| A method and apparatus for boring a close tolerance on-grade subsurface borehole. A downhole tool assembly for use with a dual member drill string comprises a directional boring tool. The dual member drill string comprises an outer member and an inner member disposed within the outer |
| 6808210 |
Drill pipe with upset ends having constant wall thickness and method for making same |
October 26, 2004 |
| A drill pipe with cold upset ends. The drill pipe includes an elongate tubular portion with a pin joint on one end and a box joint on the other end. Each of the ends of the tubular portion is expanded using a cold upsetting process to provide a transitional portion and a joint receiving |
| 6776246 |
Apparatus and method for simultaneously locating a fixed object and tracking a beacon |
August 17, 2004 |
| A portable area monitoring system for use with a horizontal directional drilling machine and adapted to produce a composite of the positions of a beacon and a fixed object. In a preferred embodiment the sensor assembly is supported by a hand-held frame and adapted to detect signals emana |
| 6739413 |
Using a rotating inner member to drive a tool in a hollow outer member |
May 25, 2004 |
| A rotating inner member is used to drive a downhole tool housed within the hollow outer member of a dual-member drill string. The downhole tool preferably will be adapted to receive rotational energy from the inner member. In a preferred embodiment, the downhole tool is an electric g |
| 6672409 |
Downhole generator for horizontal directional drilling |
January 6, 2004 |
| A generator assembly for generating power in the downhole end of a drill string used to form a borehole in horizontal directional drilling. The drill string provides a fluid passageway in which the downhole generator is receivingly disposed, at least in part, to subject a rotatable turbi |
| 6644417 |
Quick reverse mechanism for pneumatic boring tool |
November 11, 2003 |
| A reversible impact-operated pneumatic boring tool for reversing the direction of operation of the tool is disclosed. The tool includes two fluid supply lines, a striker and a non-mechanically biased directional control sleeve. The primary fluid supply line provides pressurized fluid |
| 6550547 |
System and method for automatically controlling a pipe handling system for a horizontal boring m |
April 22, 2003 |
| An automatic pipe handling system for automatically transporting pipe sections to and from a horizontal boring machine. The system comprises a pipe handling assembly, a pipe lubrication assembly, a makeup/breakout assembly, and an automatic control system. The pipe handling assembly |
| 6543551 |
Pipe handling device |
April 8, 2003 |
| An automatic pipe handling device (10) is disclosed which includes a support frame (12) mounted on a boring device (14). Removable pipe racks (16, 80, 130, 140) can be placed in position on the support frame (12) to deliver pipe to the spindle axis or to remove pipe therefrom as required |
| 6467554 |
Quick reverse mechanism for pneumatic boring tool |
October 22, 2002 |
| A reversible impact-operated pneumatic boring tool for reversing the direction of operation of the tool is disclosed. The tool includes two fluid supply lines, a striker and a non-mechanically biased directional control sleeve. The primary fluid supply line provides pressurized fluid |
| 6411094 |
System and method for determining orientation to an underground object |
June 25, 2002 |
| A system and method use magnetic field sensing to detect underground objects for strike avoidance. The system detects magnetic field components for both passive distortions in the magnetic field indicative of a ferromagnetic object and active magnetic fields that are impressed on an |
| 6250404 |
Directional boring head |
June 26, 2001 |
| A directional boring head assembly having a directional boring head, with a deflection surface capable of steering the directional boring head, combined with a replaceable cutting member is provided. The position of the cutting member relative to the deflection surface permits the di |
