| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 175162000 | WITH ABOVE-GROUND MEANS TO FEED TOOL | 9 |
| 20080308319 | Guide Rail Plate For Top Drive Of A Drilling System - A guide rail plate for top drive of a drilling system, including a guide rail plate consisting of 5-7 guide rail sections, characterized in that there is a pair of boss ( | 12-18-2008 |
| 20130056279 | ROCK DRILLING RIG AND METHOD FOR DOWNHILL DRIVE - The invention relates to a rock drilling rig and a method for downhill driving of a rock drilling rig. The rock drilling rig comprises electric drive equipment, the drive motor of which serves as a primary brake in long-term downhill driving. The drive motor thus converts kinetic energy into electric energy, with which an energy storage is charged. To consume surplus electric energy, a hydraulic system or a compressed air system is turned on. A hydraulic pump and a compressor ( | 03-07-2013 |
| 20130062126 | Geological Drill - A compact, portable, hydraulically controlled and operated drill for both soil augering and rock drilling includes a trailer type drill carrier. A mast is attached to the rear of trailer which is hydraulic controlled, lightweight and provides an adjustable drilling angle. A motor box housing unit is mounted for sliding movement on the mast with quick change capability for hydraulic drive motors specific for the soil augering drilling application requiring higher torque, lower rotation speeds for soil augering or lower torque, high rotation speed for rock coring. The motor housing carries a thrust bearing and a coupling to the drill string and is driven along a drive axis by a fully adjustable drilling penetration rate hydraulic cylinder. | 03-14-2013 |
| 20110290564 | KELLY FOR THE REALIZATION OF BORED PILES - A kelly for the realization of bored piles, has a battery of rods ( | 12-01-2011 |
| 20120292116 | Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods - A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path includes a switch, such as a bi-stable fluidic switch, for reversing the direction of the flow in the vortex chamber. The flow path may include multiple vortex chambers, and the device may include multiple flow paths. A hardened insert in the outlet of the vortex chamber resists erosion. This device generates backpressures of short duration and slower frequencies approaching the resonant frequency of the drill string, which maximizes axial motion in the drill sting and weight on the bit. Additionally, fluid pulses produced by the tool enhance debris removal ahead of the bit. | 11-22-2012 |
| 20080257607 | Iron roughneck extension systems - Extension systems for iron roughnecks are disclosed. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b). | 10-23-2008 |
| 20100270083 | Housing arrangement - Housing arrangement | 10-28-2010 |
| 20110073375 | MODULAR TOP DRIVE LUBRICATION SYSTEM AND METHODS - A top drive system with a plurality of top drive modules, which are configured to be quickly exchanged. The top drive modules may include any or all of the following: a main body module, a gearbox module, a drive motor module, a pipe handler module, an upper fluid module, a lower well control valve module, a block interface module, a retract system interface frame module, a cooling system module, a work platform guard module, and a quill saver sub module. Alternatively, the top drive may comprise a first top drive and a second top drive which are configured to be quickly exchanged. | 03-31-2011 |
| 20090218144 | Drilling rig masts and methods of assembly and erecting masts - Methods for connection parts of a mast of a drilling rig without using a crane or other lifting machine are disclosed. In certain aspects, these methods include moving parts of a mast to be assembled with trucks and positioning the parts with the trucks to facilitate their connection. This Abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, | 09-03-2009 |
