Abstract: Systems and methods are disclosed for a rotating superhard cutting element. The rotating cutting element includes a substrate comprising a rotating portion and a stable portion. The stable portion has a cavity and is configured to be fixed to a blade of a drill bit. The rotating cutting element further includes a retainer that rotatably secures the rotating portion of the substrate in the cavity of the stable portion of the substrate, and a cutting layer on the rotating portion of the substrate. The cutting layer has a plurality of cutting surfaces. One of the plurality of cutting surfaces has a property different from another one of the plurality of cutting surfaces. The cutting layer is configured to rotate with respect to the stable portion of the substrate and use one of the plurality of cutting surfaces based on a characteristic of a formation to be cut.

Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the date may be included on the control channel.

Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the data may be included on the control channel.

Abstract: A system and method for providing real-time, image-guided high intensity focused ultrasound (HIFU) targeting and treatment of tissue. In one embodiment, the system includes an HIFU applicator and a user interface with a touchscreen display for three-dimensional visualization of the tissue. Image frames displayed on the user interface depict real-time images of the tissue, including an image parallel to a feature of the applicator and an image orthogonal to the parallel image. Reference lines may be sketched using the touchscreen and displayed on the image frames. In one embodiment, tissue boundaries are detected and marked on the image frames, either by the user or automatically by the system. In another embodiment, the user interface includes a footswitch for the user to interact with the system. In another embodiment, the system includes an ultrasound imaging component configured to undock from the system for use as a stand-alone ultrasound imaging device.

Abstract: A system and method for providing real-time, image-guided high intensity focused ultrasound (HIFU) targeting and treatment of tissue. In one embodiment, the system includes an HIFU applicator and a user interface with a touchscreen display for three-dimensional visualization of the tissue. Image frames displayed on the user interface depict real-time images of the tissue, including an image parallel to a feature of the applicator and an image orthogonal to the parallel image. Reference lines may be sketched using the touchscreen and displayed on the image frames. In one embodiment, tissue boundaries are detected and marked on the image frames, either by the user or automatically by the system. In another embodiment, the user interface includes a footswitch for the user to interact with the system. In another embodiment, the system includes an ultrasound imaging component configured to undock from the system for use as a stand-alone ultrasound imaging device.

Abstract: The present invention is a method and kit for playing a drawing game. A first player determines a stating pattern, such as a predetermined number of random lines. The second player reviews the starting pattern and connects points of the starting pattern by freehand to create a creative picture. Thereafter, the drawing game can continue with the second player determining a starting pattern and the first player creating a creative picture by connecting points of the new starting pattern by freehand.

Abstract: A vehicle brake system includes a primary hydraulic pump, a secondary variable delivery pump, left and right service brakes and left and right secondary brakes. A service brake valve is connected between the primary pump and the service brakes, and operates the service brakes in response to brake pedal operation. Left and right service brake switches generate signals representing operational status of the service brakes. An electrohydraulic secondary brake valve operates the secondary brakes in response to an electronic control signal. Brake pressure sensors generate brake pressure signals representing the service brake pressure and the secondary brake pressure. An electronic control unit is coupled to the service brake switches, to the pressure sensors and to the secondary brake valve. The control unit generates the control signal as a function of the status of the service brakes and of the brake pressure signals.

Abstract: A vehicle brake system includes a primary hydraulic pump, a secondary variable delivery pump, left and right service brakes and left and right secondary brakes. A service brake valve is connected between the primary pump and the service brakes, and operates the service brakes in response to brake pedal operation. Left and right service brake switches generate signals representing operational status of the service brakes. An electrohydraulic secondary brake valve operates the secondary brakes in response to an electronic control signal. Brake pressure sensors generate brake pressure signals representing the service brake pressure and the secondary brake pressure. An electronic control unit is coupled to the service brake switches, to the pressure sensors and to the secondary brake valve. The control unit generates the control signal as a function of the status of the service brakes and of the brake pressure signals.

Abstract: An improved the velocity fuse valve controls communication between first and second brake valves and first and second brake lines. The velocity fuse valve includes a valve housing having a valve bore which slidably receives a valve spool. The spool moves in response to pressure in first and second pilot chambers, each communicated with a corresponding first and second outlet. The first pilot chamber is communicated with the first outlet via a first dashpot passage and a first orifice, and the second pilot chamber is communicated with the second outlet via a second dashpot passage and a second orifice. The orifices reduce or control how fast the spool will move in response to the pressure differential between the pilot chambers.

Abstract: A tool for preparing broken stud bolts or the like for extraction by screw extractors has a guide for centering a center punch and/or a drill on a broken face of a stud. The guide is a nut and a shaft assembly. The nut has a central bore therethrough having a first portion threaded to mate with the stud threads and a second portion bored to just slide over the stud threads. The shaft assembly has a cylindrical shaft having a first end and a second end and an axial bore therethrough. The shaft includes a first externally threaded portion extending from the shaft first end of threads similar to those of the broken stud and an expandable sleeve attached to the shaft second end such that threading movement of the nut toward the shaft second end axially compresses the sleeve whereby the sleeve expands radially outward. The second end of the shaft has a conical end face.

Abstract: A tool, for preparing broken stud bolts or the like for extraction by screw extractors and more specifically is a guide for centering a center punch and/or a drill on a the broken face of a stud, comprises a nut and a shaft assembly. The nut has a central bore therethrough having a first portion threaded to mate with the stud threads and a second portion bored to just slide over the stud threads. The shaft assembly has a cylindrical shaft having a first end and a second end and an axial bore therethrough. The shaft includes a first externally threaded portion extending from the shaft first end of threads similar to those of the broken stud and an expandable sleeve attached to the shaft second end such that threading movement of the nut toward the shaft second end axially compresses the sleeve whereby the sleeve expands radially outward. The second end of the shaft has a conical end face.