Abstract: A drilling system configured to drill a borehole into a subsurface formation, including a steering device. The steering device is configured to convey a fluid supply through a valve to an outside surface of the steering device, wherein the fluid flow causes a steering force on the steering device. A method for drilling a borehole into a subsurface formation, including disposing a steering device in the borehole, rotating the steering device, urging a fluid to flow through a valve of the steering device to an outside surface of the steering device, wherein the fluid flow causes a steering force on the steering device.

Abstract: An inductive proximity sensor and a method for the detection of an object having at least one coil, wherein at least one transmitted current pulse can be applied to the coil by a control and evaluation unit and the control and evaluation unit is configured to output an object determination signal, wherein the control and evaluation unit is configured to scan at least one induced voltage pulse that has been generated by the transmitted current pulse at the coil in a plurality of sections from or after the time of the application of the transmitted current pulse and to form scan values, whereby the voltage pulse is digitized, wherein the control and evaluation unit is configured to evaluate the scan values for an object detection of a metallic object, wherein the control and evaluation unit is configured to scan the transmitted current pulse that has been generated at the coil in at least two sections from or after the time of the application of the transmitted current pulse and to form transmitted current scan

Abstract: A cutter system is for an electric shaver and trimmer, comprising a pair of cooperating cutting elements with two rows of comb-like cutting teeth at opposite edges thereof and cutting perforations between said rows of comb-like cutting teeth, wherein said cutting elements are movably supported relative to each other by a support structure. The cutting perforations are arranged in two separated elongated fields of perforations which are separated from each other by an elongated unperforated center section of an outer one of said cutting elements defining a skin contact surface, and each of at least two rows of perforations extends along the rows of comb-like cutting teeth.

Abstract: A downhole motor, having a body having an outside surface and a longitudinal extent, a first flow passage defined within the body and disposed along the longitudinal extent of the body, and a second flow passage extending from the first flow passage to a channel at the outside surface, wherein a Bernoulli suction force is created at the channel. A method for drilling a borehole, including directing a fluid through a first flow passage defined within a body of a drill and disposed along the longitudinal extent of the body, directing a portion of the fluid from the first flow passage through a second flow passage to a channel at an outside surface to create a Bernoulli suction force at the channel, and drilling a curved section of the borehole by using the Bernoulli suction force at the channel.

Abstract: A cutter system is for an electric shaver and trimmer, comprising a pair of cooperating cutting elements with two rows of comb-like cutting teeth at opposite edges thereof and cutting perforations between said rows of comb-like cutting teeth, wherein said cutting elements are movably supported relative to each other by a support structure. The cutting perforations are arranged in two separated elongated fields of perforations which are separated from each other by an elongated unperforated center section of an outer one of said cutting elements defining a skin contact surface, and each of at least two rows of perforations extends along the rows of comb-like cutting teeth.

Abstract: A bending stiffness control system in a downhole drilling assembly includes a body configured to be connected to a downhole component of the downhole drilling assembly, the body having a longitudinal axis. The bending stiffness control system also includes a cavity disposed within the body and extending along the longitudinal axis, and a moveable element assembly including one or more moveable elements that are configured to move along the longitudinal axis, the moveable element assembly configured to control a bending stiffness of the body by reacting to a change in an inclination of the body and the longitudinal axis.

Abstract: An embodiment of a coupling device is configured to be disposed in a borehole string in a borehole in a subterranean region. The coupling device includes a coupler body having a longitudinal axis, the coupler body including an elongated shaft extending along the longitudinal axis and configured to carry loads through the coupling device, a stiffness control device connected to the elongated shaft, the stiffness control device configured to adjust a bending stiffness of the coupler body, and an actuator configured to cause the stiffness control device to adjust the bending stiffness of the coupler body.

Abstract: An apparatus for determining a location of an inner string in an outer string includes an axis parallel to a longitudinal axis of the inner string, and a tagging assembly disposed at a tagging location in the outer string, the outer string configured to be deployed into a borehole in a subterranean region, the inner string configured to be advanced through the outer string. The tagging assembly includes a stop component configured to obstruct axial movement of the inner string through the outer string at the tagging location, the stop component configured to be displaced in response to an axial force applied to the stop component by the inner string, to permit the inner string to advance axially beyond the tagging assembly.

Abstract: An embodiment of a coupling device is configured to be disposed in a borehole string in a borehole in a subterranean region. The coupling device includes a coupler body having a longitudinal axis, the coupler body including an elongated shaft extending along the longitudinal axis and configured to carry loads through the coupling device, a stiffness control device connected to the elongated shaft, the stiffness control device configured to adjust a bending stiffness of the coupler body, and an actuator configured to cause the stiffness control device to adjust the bending stiffness of the coupler body.

Abstract: A bending stiffness control system in a downhole drilling assembly includes a body configured to be connected to a downhole component of the downhole drilling assembly, the body having a longitudinal axis. The bending stiffness control system also includes a cavity disposed within the body and extending along the longitudinal axis, and a moveable element assembly including one or more moveable elements that are configured to move along the longitudinal axis, the moveable element assembly configured to control a bending stiffness of the body by reacting to a change in an inclination of the body and the longitudinal axis.

Abstract: The present invention relates to cutting body hair such as beard stubble. More particularly, the present invention relates to a cutter system for an electric shaver and/or trimmer, with a pair of cooperating cutting elements with at least one row of comb-like cutting teeth. The cutting elements are movably supported relative to each other by a support structure. At least one of the cutting elements, when viewed in cross section, has a C-shape including a pair of dog-eared holding flanges attached to the support structure and a slightly dome shaped or flat center section. The row of comb-like cutting teeth are formed in a transitional section between the dog-eared holding flanges and the center section. The dog-eared holding flange at the transitional section may be provided with a step-like concave depression forming thinned-out tooth tips.

Abstract: An inductive proximity sensor and a method for the detection of an object having at least one coil, wherein at least one transmitted current pulse can be applied to the coil by a control and evaluation unit and the control and evaluation unit is configured to output an object determination signal, wherein the control and evaluation unit is configured to scan at least one induced voltage pulse that has been generated by the transmitted current pulse at the coil in a plurality of sections from or after the time of the application of the transmitted current pulse and to form scan values, whereby the voltage pulse is digitized, wherein the control and evaluation unit is configured to evaluate the scan values for an object detection of a metallic object, wherein the control and evaluation unit is configured to scan the transmitted current pulse that has been generated at the coil in at least two sections from or after the time of the application of the transmitted current pulse and to form transmitted current scan

Abstract: A sensor for detecting an object is provided that has a detection unit for detecting a sensor signal and a control and evaluation unit that is configured to determine an object property by evaluating the sensor signal, to determine a correction value for interference of the sensor environment from the sensor signal using a method of machine learning, and to take the correction value into account in the determination of the object property.

Abstract: A steering augmenter for a steering device of a drilling tool, including a body, a first flow passage in the body and configured to convey a fluid supply. a channel at the outside surface of the body, the channel being configured to produce a Bernoulli effect therein during fluid flow therein, a second flow passage fluidly connecting the first flow passage to the channel, and a valve associated with the second flow passage and configured to allow, prevent or choke flow through the second flow passage. A downhole drill bit assembly including a steering augmenter, the drill bit attached to the steering augmenter. A method for drilling a borehole into the earth, the method including conveying the steering device into the borehole, operating the valve to allow, prevent or choke flow through the second flow passage, creating a steering force at the steering augmenter by the produced Bernoulli effect.

Abstract: A drilling system configured to drill a borehole into a subsurface formation, including a steering device. The steering device is configured to convey a fluid supply through a valve to an outside surface of the steering device, wherein the fluid flow causes a steering force on the steering device. A method for drilling a borehole into a subsurface formation, including disposing a steering device in the borehole, rotating the steering device, urging a fluid to flow through a valve of the steering device to an outside surface of the steering device, wherein the fluid flow causes a steering force on the steering device.

Abstract: A downhole motor, having a body having an outside surface and a longitudinal extent, a first flow passage defined within the body and disposed along the longitudinal extent of the body, and a second flow passage extending from the first flow passage to a channel at the outside surface, wherein a Bernoulli suction force is created at the channel. A method for drilling a borehole, including directing a fluid through a first flow passage defined within a body of a drill and disposed along the longitudinal extent of the body, directing a portion of the fluid from the first flow passage through a second flow passage to a channel at an outside surface to create a Bernoulli suction force at the channel, and drilling a curved section of the borehole by using the Bernoulli suction force at the channel.

Abstract: A control valve assembly includes a body having a fluid inlet and a fluid outlet. A portion of the body is formed from a first magnetic material. A sleeve is slidingly mounted to the body. At least a portion of the sleeve is formed from a second magnetic material. A magnetic circuit having a gap is defined within the control valve assembly. A solenoid is mounted to the body about at least a portion of the first magnetic material of the body. The solenoid is selectively activated to create a magnetic field across the gap in the magnetic circuit. The magnetic circuit causes the sleeve to slide, narrowing the gap and sliding from the first position to the second position to produce a pressure pulse in the wellbore, wherein the biasing member biases the sleeve back to the first position.

Abstract: The present invention relates to cutting body hair such as beard stubbles of multidays' beard. More particularly, the present invention relates to a cutter system for an electric shaver and/or trimmer, comprising a pair of cooperating cutting elements with two rows of comb-like cutting teeth at opposite edges thereof.

Abstract: Methods and apparatuses for controlling a trajectory of a borehole being drilled into the earth are provided. The apparatus includes a drilling system including a drill tubular, a disintegrating device, and a steering system coupled to the drill tubular configured to steer the drilling system, the drilling system configured to drill the borehole by receiving control outputs from at least one control unit for controlling parameters of the drilling system, the at least one control unit configured to provide the control outputs to the steering system, the at least one control unit being configured to provide a depth-based control output.

Abstract: Methods, systems, devices, and products for downhole operations. Embodiments include downhole tools comprising an outer member configured for conveyance in the borehole; a pressure barrel positioned inside the outer member; a substantially cylindrical pod positioned inside the pressure barrel; and at least one downhole electronic component mounted between the exterior surface and the frame. The pod comprises at least one rigid outer surface forming an exterior surface of the pod and supported by a central frame extending across a diameter of the pod, such as a plurality of outer rigid surfaces. The pod may include a plurality of coupled rigid elongated semicircular metallic shells, wherein each shell of the plurality comprises a rigid outer surface of the plurality of outer rigid surfaces. Each of the at least one downhole electronic component may be sealingly enclosed within a corresponding shell.