| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 175113000 | WITH MEANS TO SIMULTANEOUSLY FEED AND ROTATE TOOL FROM A SINGLE MECHANICAL ELEMENT | 10 |
| 20090014216 | GEOTHERMAL HEAT LOOP INSTALLATION - Methods and apparatuses associated with a rotary driven well drilling rig. One method includes providing a rig having: an erectable mast; a head drive unit for rotatably driving drill pipes into a surface; a pumping unit to deliver a fluid through a drill pipe secured to the head drive, the fluid being forced out a bottom end of the drill pipe and up to the surface along the outside of the drill pipe during a borehole drilling operation; and a deck unit pivotally mounted on a turret attached to a set of tracks. This method embodiment includes, while the rig is in a first location, performing a first borehole drilling operation to form a first borehole at a second location; and performing a second borehole drilling operation to form a second borehole at a third location while the rig remains in the first location. | 01-15-2009 |
| 20100065335 | ARTICULATION ASSEMBLY FOR MOVING A DRILL MAST - A jib assembly for use with a drill rig includes a jib boom having a first end and a second end. The jib boom is to rotate about the first end and the second end is configured to be coupled to a mast assembly mount. The jib assembly also includes an articulation assembly having at least one variable length link having a first end and a second end. The first end of the variable length link is offset from the jib boom and the second end is configured to be pivotingly coupled to the mast assembly mount. | 03-18-2010 |
| 20100263934 | METHOD OF PROTECTING A TOP DRIVE DRILLING ASSEMBLY AND A TOP DRIVE DRILLING ASSEMBLY MODIFIED IN ACCORDANCE WITH THIS METHOD - A method of protecting a top drive drilling assembly includes incorporating a shock absorbing sub incorporated in the top drive drilling assembly. The shock absorbing sub comprises a first body and a second body capable of relative axial movement, with a shock absorbing medium disposed between the first body and the second body to absorb any reactive axial force exerted upon the top drive drilling assembly. | 10-21-2010 |
| 20110036634 | ROCK DRILLING DEVICE - The present invention pertains to a feeder holding device to be used with a rock drilling and/or rock bolting rig, wherein said rock drilling and/or rock bolting rig comprises at least one boom with a first end and a second end, wherein said first end is attached to a carrier, and said second end is designed to support a feed beam by means of the feeder holding device, wherein said feed beam can be adjusted by means of said feeder holding device in a first drilling position in a first drilling direction and in a second position. The feeder holding device is designed for linear movement of said feed beam, in a direction different from said drilling direction, from said first drilling position to said second position, wherein the feed beam in said second position is pointed in a direction parallel to said first drilling direction. The invention also pertains to a rock drilling and/or rock bolting rig. | 02-17-2011 |
| 20110114390 | Sleeve arrangement - Sleeve arrangement for a drill rig, especially adapted for damping sound and sealing to the ground, said drill rig comprising a feed beam ( | 05-19-2011 |
| 20110174545 | DRILLING MACHINE AND METHOD - The present disclosure provides a machine capable of drilling into the ground at a wide range of angles relative to the ground surface. The present disclosure also provides novel drilling methods. | 07-21-2011 |
| 20120138367 | DRILL STRING COMPONENT FOR NOISE CONTROL DURING PERCUSSION DRILLING - Drill string components ( | 06-07-2012 |
| 175114000 | Constant rotation rate permitted regardless of (1) release of feed force, or (2) change in feed rate | 1 |
| 20120125692 | FORCE COMPENSATOR FOR TOP DRIVE ASSEMBLY - A force compensator for a top drive assembly includes a carrier block, a pair of top drive link assemblies, a mandrel, and a shock absorber assembly. The top drive link assemblies being positionable on either side of a power swivel and having a lower end connectable to the power swivel, an upper end connected to the carrier block, and being slidably positionable on a derrick of a drilling rig. The mandrel is slidably disposed through the carrier block and has an upper end connectable to a mover assembly of the drilling rig. The shock absorber assembly is interposed between the carrier block and a lower end of the mandrel in such a way that the shock absorber assembly is movable between an expanded condition and a compressed condition. | 05-24-2012 |
| 175121000 | Rotary drive for relatively advancing feed screw | 2 |
| 20090107729 | DRILLING MACHINE - A drilling machine comprises a power motor unit coupled with a spiral rod and a drill bit shaft and assembled in a mounting frame using a positioning disc. The arbor of power motor mounted on the mounting frame directly drives the drill bit shaft. The spiral rod is disposed at the periphery of drill bit shaft. A plurality of cutters are arranged between the drill bit and spiral rod at the outer perimeter of drill bit with a hollow guide notch above the cutters. The spiral rod is mounted in the positioning disc and engage a plurality of planet gears. When the arbor of power motor turns, it directly drives the drill bit shaft, drives the fast turning of drive gear at the periphery of drill bit shaft, resulting in different turning speeds with the drill bit shaft turning slowly and the spiral rod turning fast. | 04-30-2009 |
| 20140318868 | Device and Method for Drilling with Continuous Tool Rotation and Continuous Drilling Fluid Supply - A device is for a drilling rig for forming of a bore hole in a subterranean structure. The drilling rig comprises a first, top driven drilling machine arranged vertically displaceable along a guide track, where a second drilling machine is arranged between the first drilling machine and the bore hole, vertically displaceable along a guide track and provided with a rotary table arranged to be able to take the weight of a pipe string. A rotary drive unit is arranged for continuous rotation of the pipe string. A fluid chamber is arranged to, in a fluid communicating way, be able to connect a pipe string end portion with a drilling liquid plant. As the fluid chamber is provided with pipe string ports comprising means arranged to, in a fluid sealing way, be able to close the pipe string ports. A power tong is arranged for continuous rotation of an element connected to the pipe string, as the power tong is arranged in the fluid chamber. Also, a method is for drilling with continuous tool rotation and continuous drilling liquid supply. | 10-30-2014 |
