Abstract: An inline component for a liner assembly, usable particularly in deviated wellbores, is disclosed. The component involves a series of offset passages to create sufficient turbulence in the circulating cement during a cementing job so as to eliminate the phenomenon of roping where there is inefficient displacement of mud with the circulating cement. The multi-component inline device has peripheral seals to prevent leakpaths along the inside wall of the casing being cemented. The offset flow passages are presented in individualized components which are rotationally locked to each other and have peripheral sealing devices. The stack of components is retained within the casing to prevent its longitudinal movement during the pumping of cement. The preferred materials are soft metallics which facilitate drilling out if required. The interlocking nature of the components also eliminates relative rotation to facilitate drill-out.

Abstract: The present invention tunes, or focuses, an input device's effective targeting capability to the task at hand in a computer system. If there are only 5 choices selectable by a user on a given active screen area on the computer's display device, the present invention logically constrains the input device's cursor movement is to only those five positions, no matter what pixel-by-pixel movement is actually being generated by the movement of the input device. The currently displayed area and its selectable subcomponents (e.g., radio buttons) at any given moment are determined. A logical map of these selectable items and subcomponents is created for use as a filter for input coordinates received from the input device, with each selectable item mapped to a "region" of the input coordinate field. Upon initiation of the present invention, a start point, in the logical map is determined from for the current location of the input device on screen cursor.

Abstract: A circuit which detects the median peak of a burst of pulses. The peak value of each pulse in a pulse burst is detected and stored. The peak value of each pulse is then compared to the peak value of every other pulse and the results of the comparison are used to determined the median peak.