Class / Patent application number | Description | Number of patent applications / Date published |
175315000 | COMBINED | 13 |
20090152010 | MICROTUNNELLING SYSTEM AND APPARATUS - A microtunnelling apparatus and system that includes an external drive system having rotational and linear thrust drive means, a drill head section having drill rotor and drill rod and connecting to intermediate drill rods allowing extension of the boring hole created by the drill head section driven by the drive system. The drill head includes a modular construction having a plurality of circular disc like elements, a bearing module, a steering module, a spacer module, and a mounting module, for axial alignment and abutment and mounting within a cylindrical steering shell. Directional steering of the drill head includes a plurality of substantially radially extending channels in steering module, each with an hydraulically movable protuberance movable by control means to redirect the outer steering casing and thereby redirect the drill head section mounted on the distal end of the drill rods. | 06-18-2009 |
20090183924 | Tracked Hydrovacuum Vehicle - A tracked hydrovacuum vehicle combines a tracked vehicle and a hydrovacuum unit in a single machine with a single power source. The reduced weight and tracking of the modified machine permits operation of the device in boggy conditions. The compact size of the machine permits operation in congested areas. | 07-23-2009 |
20090194337 | Spiral Ribbed Aluminum Drillpipe - A spiral ribbed aluminum drillpipe has an intermediate portion with a plurality of ribs spiraling along its length. These ribs have active faces that are exposed by recessed areas. The active faces define incut angles relative to the pipe's outer surface for actively engaging slime/sediment material along a borehole wall. Bearings rotatably disposed on the pipe have a greater diameter than the ribbed intermediate portion or any tool joints on the drillpipe so that the bearings engage the borehole wall. The pipe's body is preferably composed of a lightweight alloy, such as aluminum alloy, whereas the bearings are preferably composed of steel and have wear resistant coating or bands. | 08-06-2009 |
20100116555 | NOISE-DAMPENING SHIELD STRUCTURE FOR ROCK DRILLING APPARATUS - The invention relates to a shield structure of a rock drilling apparatus for dampening noise, the rock drilling apparatus comprising a feed beam whose one end is a drilling end, whereby the drilling end of the feed beam comprises a first shield part mounted immovably relative to the feed beam, and a second shield part mounted movably relative to the feed beam. A tubular shield flexible at least in its longitudinal direction is mounted between the shield parts, the shield being tightly attached by its ends to the first and the second shield part. | 05-13-2010 |
20110036637 | SEISMIC TOOL ASSEMBLY FOR USE IN ANCHOR INSERTION - A seismic tool assembly for effecting a drill hole and enlarging a lowermost end thereof whereby an anchor can be set more securely therein. A drill bit is inserted through an opening in a stabilizer, which is positioned over a surface where the drill hole is to be made. The bit is placed into the drill hole, attaining a position at the lowermost end thereof. The lower end of the bit has a cutting portion having a cutting radius greater than that of the bit body whereby, when the bit is inserted fully into a lowermost end of the hole and rotated, the cutting portion enlarges the lowermost end of the hole, whereby flanged portions of an anchor will rest within the enlarged area, retaining the anchor in place. The stabilizer has a flanged portion extending into the hole, which provides a space between the bit and the stabilizer to permit limited tilting movement of the bit during drilling to enlarge a lowermost end of the hole, and for aiding in accurately inserting the bit into position. | 02-17-2011 |
20120152621 | Offset Rock Bit With Pull Back Adapter - An offset rock bit ( | 06-21-2012 |
20130000989 | SYSTEMS AND METHODS OF A COLLAR BORE FOR A SAMPLE BOTTLE ASSEMBLY - A sample bottle assembly is installed in a bore drilled into a drill collar section, wherein the bore may be drilled into a side wall of a pocket in the drill collar. The sample bottle assembly may be passed through the pocket and inserted into the bore. Drill collar material between the bore and the outer surface of the drill collar retains the sample bottle assembly in a radially inward direction, and a retention member in the pocket may retain the sample bottle assembly in an axial direction. | 01-03-2013 |
20130126245 | Annular Disposed Stirling Heat Exchanger - Apparatus and method for cooling internal components of a down-hole well drilling apparatus. Components of the well drilling apparatus are encased in an inner canister that is further encased in an outer canister creating a void between the inner canister and the outer canister. Further, a plurality of moveable barriers is disposed between the inner canister and the outer canister and contains a heat transfer fluid. A plurality of agitators add mechanical energy to the plurality of moveable barriers compressing and expanding, while repositioning, the heat transfer fluid and creating a heat pump based on a reverse Stirling cycle to remove heat from the cooler inner canister and transfer the heat to the hotter environment outside the outer canister. | 05-23-2013 |
20140041945 | ELECTROMAGNETIC COUPLER - An electromagnetic coupler includes first and second coupling elements for mounting on respective first and second support elements. The first and second coupling elements include respective first and second annular bodies each including a high magnetic permeability material that houses a conductive winding and an open transverse section. The first and second bodies have complementary shapes that when two support elements respectively receiving the first and second coupling elements are coupled, the first and second bodies form a structure enclosing the first and second conductive windings. The first and second conductive windings are respectively positioned in the first and second bodies such that respective surfaces of the first and second conductive windings are substantially parallel when two support elements respectively receiving the first and second coupling elements are coupled. | 02-13-2014 |
20140102806 | TUBULAR COMPONENT FOR DRILL STEM CAPABLE OF BEING CABLED, AND METHOD FOR MOUNTING A CABLE IN SAID COMPONENT - A tubular component for a drill stem that can be cabled includes a first end zone, a second end zone, a sheath, the sheath extends between the first end zone and the second end zone, and a liner fixed in a bore of the first end zone. The liner includes at least one take-up chamber for a cable disposed in the sheath. | 04-17-2014 |
20160002983 | DRILLING TOOL - The inner bit is provided with: a supply hole which is open at the distal end portion of the inner bit; and a discharge groove which is formed in an outer peripheral surface of the inner bit and extends in the direction of the axial line. The supply hole is provided with: a distal end blow hole which is open in a distal end surface of the distal end portion of the inner bit; and an outer peripheral blow hole which is open in an outer peripheral surface of the distal end portion of the inner bit. An outer peripheral groove via which the outer peripheral blow hole communicates with the discharge groove is formed in the outer peripheral surface of the inner bit. The outer peripheral groove is covered with the ring bit from the outside in a radial direction. | 01-07-2016 |
20160010394 | Directional Drill Hammer Pullback Device | 01-14-2016 |
20160168915 | SYSTEM FOR NON-DESTRUCTIVE PENETRATION OF A SUBSTRATE | 06-16-2016 |