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| Number | Title | Issue Date |
| 7341659 | Rinsing liquid treatment device A modular assembly for a rinsing liquid treatment device (2) includes an expansion module (12) and an adapter module (9) for a rinsing liquid circuit for a rock working tool (1) and having a feed line (3), a catch trough (4)... | 03/11/2008 |
| 7281886 | Suction device A suction device that is used with a power drilling tool for aspirating material removable during operation of the drilling tool, and which includes a suction head (20) displaceable relative to the drilling tool (2) in a direction opposite a drilling d... | 10/16/2007 |
| 7198098 | Mechanical connection system A connector system is provided for connecting parts of an apparatus. A first part having one or more bayonet connectors and one or more retention pin receptacles cooperatively mates to a second part having one or more mating bayonet connectors. The second part furth... | 04/03/2007 |
| 7073612 | Surge device for air drilling A surge device providing a vent for bleeding pressure off an air drilled well and providing connectors for surge lines in the blooie line. The surge device has a hollow, abrasion resistant, tapered chamber into which two surge lines and the blow down line enter the ... | 07/11/2006 |
| 7055624 | Guide rail system for a power tool A guide rail system (1) for a power tool (2), has at least two axially extending guide rails (3, 3′), at least one guide slide (4, 4′) displaceable on the guide rails (3, 3′) having a coupling part (5a, 5... | 06/06/2006 |
| 7011167 | Device for sealing a drill hole and for discharging drillings or stripped extraction material In a device for sealing a bore hole and discharging drill cuttings and stripped excavation material, including a housing adapted to receive sealing elements and an opening capable of being connected to the bore hole, one side wall of the housing is provided with at ... | 03/14/2006 |
| 6712162 | Cooling and flushing means for tools used for working rock A cooling and flushing arrangement (1) for a tool (10), has a coolant and flushing agent (2) in a closed storage tank (3), which is connected to a suction pump (4) and has a closed flushing circulation system (6) running fro... | 03/30/2004 |
| 6394194 | Method and apparatus for a drill cutting injection system A drill cuttings injection system for a well with a wellhead housing and a casing hanger supported in the wellhead housing. The wellhead has an axial flow port with an upper end in communication with an outer surface of the housing and a lower end in comm... | 05/28/2002 |
| 4964475 | Drilling device for producing drill holes with undercut A drilling device for producing drill holes with undercuts comprises a drill having a drill shaft with extending drill blades, a shoulder projecting from the drill shaft, and a guiding sleeve surrounding the drill shaft between the shoulder and the drill ... | 10/23/1990 |
| 4484643 | Gas-liquid-solids separation system A gas-liquid-solids separation system for use with a drilling device includes a surge tank for holding drilling efflux comprising gas, liquid and solids, and adapted for mounting on a drilling device in a position for having a drill shaft extending theret... | 11/27/1984 |
| 4416340 | Rotary drilling head In accordance with the present invention, the drilling head includes a body or spool having a flow bore and a removable side outlet. Upon removal of the side outlet, the drilling head will pass through most rotary tables. The drilling head further include... | 11/22/1983 |
| 4406331 | Pipe wiper The wiper apparatus of this invention is arranged to be located and to seat on top of the rotary head structures such as a Williams Connector or Shaffer blow-out preventor located on top of the casing. This apparatus wipes the mud from the surface of the ... | 09/27/1983 |
| 4295534 | Well boring rigs and spoil handling conveyor apparatus therefor An improved spoil handling conveyor for well boring rigs wherein the conveyor working surface comprises a plurality of endless belts arranged side-by-side to allow the separation of spoil from drilling fluid by drainage therebetween.... | 10/20/1981 |
| 4182424 | Drill steel centralizer A feed beam for a rock drill has a drill steel centralizer at its front end. The centralizer comprises a thick, cylindrical rubber sleeve which has a clearance to the drill steel. An annular piston is arranged to axially compress the rubber sleeve axially... | 01/08/1980 |
| 4102413 | Rock drilling apparatus and method A method of drilling a large hole through rock and removing the drilling waste by drilling a pilot hole from one rock face to another, reverse drilling with a large drill bit and removing the waste during the reverse drilling by pressurizing the pilot hol... | 07/25/1978 |
| 4076085 | Drill sampling diversion unit A self-centralizing sealed diverter for aiding the surface collection of underground samples including a rigid casing driven into the ground to line a partially drilled hole, a rigid chamber mounted above and firmly but removably attached to the casing to... | 02/28/1978 |
| 4029160 | Drilling machine A drilling machine for drilling floors or walls having a frame in which a drilling rod is displaced by a screw member. A container on the frame is placed around the drilling rod to fasten the frame to the floor or wall, to cool the drill, and to collect t... | 06/14/1977 |
| 3991838 | Drill sampling diversion unit A self-centralizing sealed diverter for aiding the surface collection of underground samples including a rigid casing driven into the ground to line a partially drilled hole, a rigid chamber mounted above and firmly but removably attached to the casing to... | 11/16/1976 |
| 3961673 | Drilling apparatus A drill string is mounted on a mast which is angularly adjustable relative to a frame. A support is connected to the frame so as to be angularly adjustable and has an open aperture for the drill string. The support is to be mounted on and secured upon a s... | 06/08/1976 |
| 3958640 | Method of drilling an oil well to recover casings The present disclosure is directed to a method of drilling an oil well so that the large diameter casing initially employed can be salvaged and reused which is attainable by effecting a temporary seal between the bore hole and casing so that a dual functi... | 05/25/1976 |
