Abstract: An oil well installation (15) comprising tubing (17) arranged in a well (18), a pump (19) and actuator (20) disposed in the well, a surface controller (50) connected with the linear actuator, multiple downhole sensors (30-35) configured to sense operating parameters of the linear actuator and/or the pump, a downhole signal processor (40) configured to receive sensor data from the sensors and to output serial data, a communication cable (23) between the sensor processor and the surface controller, the communication cable having at least two paired transmission lines (25, 26), a downhole differential signal driver (41) configured to receive the serial data and to output data signals to the paired transmission lines, and a surface receiver (27) connected to the communication cable and configured to receive the signals from the differential signal driver via the paired transmission lines.

Abstract: A method is described. The method is a method for making a constraining ceramic assembly. The method includes applying at least one metallic electrode to a substrate. The method also includes applying a porous ceramic layer to the substrate to cover the metallic electrode. The method also includes sintering the substrate, the porous ceramic layer, and the metallic electrode together at a sintering temperature above a melting point of the metallic electrode.

Abstract: A method is described. The method is a method for making a constraining ceramic assembly. The method includes applying at least one metallic electrode to a substrate. The method also includes applying a porous ceramic layer to the substrate to cover the metallic electrode. The method also includes sintering the substrate, the porous ceramic layer, and the metallic electrode together at a sintering temperature above a melting point of the metallic electrode.

Abstract: A trimmer assembly for attachment onto the mower deck of a riding mower. The assembly comprises an L-shaped attachment and a height adjustment assembly. The L-shaped attachment is connected to the trim blade spindle of a riding mower, and comprises a pulley surface and a downwardly extending trim shaft holding surface. A series of pulleys within the L-shaped attachment are connected together by a trimmer drive belt that facilitates the movement of the trimmer shaft when the trim blade spindle rotates. The height adjustment comprises an upstanding shaft with a lever attached thereon. The lever is pivotally attached onto the top of the upstanding shaft, and comprises a foot actuatable handle, whereby the movement of the handle alters the height of the L-shaped attachment. The device further includes a pair of wheels that enable side-to-side movement, and a spring loaded mount that provides protection against damages from impacts.

Abstract: A trimmer assembly for attachment onto the mower deck of a riding mower is provided. The assembly comprises an L-shaped attachment and a height adjustment attachment. The L-shaped attachment is connected to the trim blade spindle of a riding mower, and comprises a pulley surface and a downward extending trim shaft holding surface. A series of pulleys within the L-shaped attachment are connected together by a trimmer drive belt that facilitates the movement of the trimmer shaft when the trim blade spindle rotates. The height adjustment comprises an upstanding shaft with a lever attached thereon. The lever is pivotally attached onto the top of the upstanding shaft, and comprises a foot actuatable handle, whereby the movement of the handle alters the height of the L-shaped attachment. The device further includes a pair of wheels that enable side-to-side movement, and a spring loaded mount that provides protection against damages from impacts.

Abstract: For an automatic control of a mobile terminal, a method is proposed for the control of a mobile terminal by receiving a set of control commands in a mobile terminal comprising a processor, a subscriber module and a communications unit, storing a set of control commands in a memory of a subscriber module of a mobile terminal, and activating of functions of the mobile terminal by the subscriber module as a function of commands of the set of control commands via an interface between the subscriber module and the mobile terminal.

Abstract: For an automatic control of a mobile terminal, a method is proposed for the control of a mobile terminal by receiving a set of control commands in a mobile terminal comprising a processor, a subscriber module and a communications unit, storing a set of control commands in a memory of a subscriber module of a mobile terminal, and activating of functions of the mobile terminal by the subscriber module as a function of commands of the set of control commands via an interface between the subscriber module and the mobile terminal.

Abstract: A device designed to lift and move precast concrete pipes in a level manner. This device, once fabricated into one solid steel piece, will be able to lift a tremendous amount of weight, while allowing coworkers to maintain a safe distance.

Abstract: The invention relates to a method for producing sheets of polymeric surfacing, the sheets produced thereby, and the apparatus used to produce the sheets. The method includes providing a solid polymeric slab, and slicing the slab into sheets of surfacing. The sheets may include polymeric particles contained in a polymeric matrix. The particles may have a maximum linear dimension that is greater than the final thickness of the sheets, thereby resulting in an aesthetically pleasing “chunky” appearance. The apparatus used to slice the sheets produces a relatively smooth, uniform surface, and is capable of dramatically limiting the amount of variation in thickness within a finished sheet.

Abstract: An implement-mounting linkage mechanism for pivotally connecting a frame to a wheeled implement is disclosed. The mechanism is preferably used for pivotally connecting a wheeled load-bearing frame to the backside of a wheeled farm implement. The frame includes wheels adjustable relative to the frame for raising and lowering the frame relative to the ground. The frame preferably includes a plurality of soil-engaging ground-tool implements mounted thereon. The mounting-linkage mechanism of the present invention incorporates a novel non-parallel four-point design which virtually eliminates negative hitch weight when the frame is raised above the ground, in the static case. On the other hand, the novel design results in a net downward force being imposed upon the ground-tool implements when the frame is lowered for soil engagement, in the dynamic case.

Abstract: This method and apparatus for eliminating apparent offset in the servo code adjacent to a guard band on a magnetic memory disc utilizes at least two phases of servo code per magnetic cell for seeking and track centering, or track following, operations and two phases or guard band code per magnetic cell. The two phases or guard band code are each either in phase or similarly out of phase with the respective phases of the servo code in individual magnetic cells.Phase locking on a selected phase of guard band code is achieved by providing a synchronizing code in the guard band using an irregular pattern of guard band code, providing a timing signal count representing a cell count, for example, decoding the synchronizing code to provide an end of code signal and utilizing the end of code signal and a predetermined cell count signal to achieve phase locking on the correct phase of the guard band code.

Abstract: An apparatus amplifies a signal in two different modes. The apparatus amplifies the signal in a linear mode when the voltage of the signal is much less than the voltage of the power source, and in a switching mode when the signal is at other voltages.