Abstract: An apparatus (100) for determining an azimuth of a drilling tool (304) during drilling of a borehole. The apparatus (100) comprises a rate sensor (102) configured to collect rate sensor data indicative of a component of a rate of rotation of the earth for determining the azimuth by gyrocompassing. The rate sensor (102) is further configured for communication with a surface unit (306). The apparatus (100) also comprises a drill pipe extension detector (104) configured to detect a process associated with extension of a drill pipe (312) connecting the drilling tool (304) to the surface unit (306). The rate sensor (102) is configured to transmit collected rate sensor data to the surface unit (306) based on the detected process associated with extension of the drill pipe (312).

Abstract: An apparatus (100) for determining an azimuth of a drilling tool (304) during drilling of a borehole. The apparatus (100) comprises a rate sensor (102) configured to collect rate sensor data indicative of a component of a rate of rotation of the earth for determining the azimuth by gyrocompassing. The rate sensor (102) is further configured for communication with a surface unit (306). The apparatus (100) also comprises a drill pipe extension detector (104) configured to detect a process associated with extension of a drill pipe (312) connecting the drilling tool (304) to the surface unit (306). The rate sensor (102) is configured to transmit collected rate sensor data to the surface unit (306) based on the detected process associated with extension of the drill pipe (312).

Abstract: The present invention provides a radio frequency welding apparatus for joining multiple layers of thermoplastic materials. The apparatus includes an electrical voltage source that is electrically connected to a radio frequency energy generator. The apparatus also includes a first die and a second die that are configured to form a tooling capacitor when thermoplastic sheets to be welded are positioned between them. The tooling capacitor is electrically connected to the radio frequency energy generator and the dielectric includes a thermoplastic sheet. A processor is electrically connected to the voltage source and is configured to monitor an electrical property applied to the electric circuit and vary voltage supplied to the radio frequency generator such that the electrical property approaches a predetermined value. The radio frequency energy generator is configured to provide energy to the tooling capacitor such the energy can be controlled as the voltage is controlled.

Abstract: A method and apparatus for enhancing the esthetic appearance of gem stones by creating points of constructive light interference and moving the points of constructive light interference across gem stones to create flashing reflected light from the gem stones thus enhancing their esthetic appearance.

Abstract: The present invention includes an angle adjuster that alters the path of an ion beam prior to contacting a target wafer. The path is altered according to a target position on the wafer in one or two dimensions in order to compensate for angle variations inherent in batch ion implantation system. The angle adjuster comprises one or more bending elements that controllably alter the path of the ion beam during ion implantation. As a result, the target wafer can be implanted with a substantially uniform implant angle.