| 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 |
| 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 |
|
| 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 |
|
| D511531 |
Excavator tool carrier |
November 15, 2005 |
|
| 7621366 |
Multiple function control system for work machine |
November 24, 2009 |
| A control system for a work machine. The control system allows an operator to selectively maintain control of a ground drive, a work tool, or both the ground drive and the work tool. The system provides a foot pedal movable between multiple positions. The foot pedal allows an operator to |
| 7600584 |
Pipe handling system with a movable magazine |
October 13, 2009 |
| A pipe handling assembly for transporting pipe sections to and from the drill string of a horizontal boring machine. The system comprises a magazine, a cradle for supporting the magazine, a support member, a drive system, and a transfer assembly. The drive system may move the cradle and |
| 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 |
| 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 |
| 6179065 |
System and method for automatically controlling a pipe handling system for a horizontal boring m |
January 30, 2001 |
| 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 |
| 6085852 |
Pipe handling device |
July 11, 2000 |
| 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 |
| 5941322 |
Directional boring head with blade assembly |
August 24, 1999 |
| A method and apparatus for deviating the direction of a borehole. The method comprises the steps of rotating a boring head underground through a material which is to be cut and oscillates the boring head to achieve a desired direction change. The boring head has one or more roller cones |
| 5799740 |
Directional boring head with blade assembly |
September 1, 1998 |
| 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 |
| 5682956 |
Dual member pipe joint for a dual member drill string |
November 4, 1997 |
| 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 |
| 5490569 |
Directional boring head with deflection shoe and method of boring |
February 13, 1996 |
| A boring apparatus (10) is disclosed which includes a casing (16) mounting a drill bit (42) and a deflection shoe (22). The cutting circle of the drill bit is offset from the centerline axis (18) of the casing (16). At least a portion of the deflection shoe (22) lies outside the cutting |
| 5479728 |
Apparatus for backfilling and tamping a trench |
January 2, 1996 |
| A backfiller and tamper unit (10) is disclosed which is a self contained unit that acts to both backfill and compact soil into a trench for complete restoration. The unit includes a tractor (12) which mounts a vibrator and tamping wheel assembly (14) and a backfill auger assembly (16 |
| 5392868 |
Directional multi-blade boring head |
February 28, 1995 |
| 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 |
| 5390750 |
Downhole compaction and stabilization back reamer and drill bit |
February 21, 1995 |
| Improved back reamers (20, 60, 80, 100) are disclosed for use in back reaming a pilot bore in a trenchless boring operation. In three of the heads (20, 60, 100), truncated cylinders are mounted on a body (22) of the head with the truncated cylinders each defining a convex truncated surfa |
| 5341887 |
Directional multi-blade boring head |
August 30, 1994 |
| Directional multi-blade boring heads (1000, 1050) are disclosed which have first and second blades (1030, 1032) which each define a deflecting surface (1036, 1038) for deflecting the boring head when the head is advanced without rotation. At least one intermediate blade (1034) extends |
| 5267621 |
Drill pipe breakout device |
December 7, 1993 |
| A drill unit (12) is disclosed which uses slides (18, 20) mounted on the saver-sub (16) of the drill unit to lock the drill pipe (14) to the saver-sub (16) for joint rotation. Dogs (32) are engaged with flats (50) on the drill pipe by moving an outer collar (42) over the end of the drill |
| 5242026 |
Method of and apparatus for drilling a horizontal controlled borehole in the earth |
September 7, 1993 |
| A series of bits (600, 680, 690, 710, 720, 780, 800, 820, 860, 920) are illustrated which can be used with a boring machine to drill a borehole underground with enhanced directional control. As an illustration, one drill bit (600) is formed of a body portion having a hexagonal cross- |
| 5220964 |
Downhole compaction and stabilization back reamer and drill bit |
June 22, 1993 |
| Improved back reamers (20, 60, 80, 100) are disclosed for use in back reaming a pilot bore in a trenchless boring operation. In three of the heads (20, 60, 100), truncated cylinders are mounted on a body (22) of the head with the truncated cylinders each defining a convex truncated surfa |
