Abstract: The food preparation device is a countertop appliance that receives and holds water and dry powder, such as dry baby formula powder, for preparing multiple quantities of food. The device measures and dispenses an exact pre-determined amount of dry powder in response to directions disclosed on an interface device via volume input controls and also measures, heats and dispenses an exact amount of water in response to temperature input controls. Generally, the water is prepared by heating it to body temperature, but can be adjusted by manipulating the temperature input controls. In use a user, after ensuring the device is filled with the powder and water, selects a volume and a temperature, if desired, for preparing food and the device automatically prepares the exact amount desired.

Abstract: Polyolefin pipes are welded end-to-end by a self-propelled, self-contained machine which performs all steps necessary to the process without need for any other machines or equipment. Hydraulically driven parallel tracks are independently controlled for maximum maneuverability. An hydraulically driven, computer controlled, reversible jaw assembly reciprocates the new pipe section relative to the exiting pipe line. A facer for trimming and squaring the pipe ends to be joined and a heater for melting the pipe ends for fusing are umbilically connected to the machine for on-board or remote operation. The computer, also on an umbilical, enables the operator to operate the machine in a normal mode in which the operator manually controls the facing, soaking and fusing processes or an automatic mode in which the fusing process is automatically controlled by the computer.

Abstract: Polyolefin pipes are welded end-to-end by a self-propelled, self-contained machine which performs all steps necessary to the process without need for any other machines or equipment. Hydraulically driven parallel tracks are independently controlled for maximum maneuverability. An hydraulically driven, computer controlled, reversible jaw assembly reciprocates the new pipe section relative to the exiting pipe line. A facer for trimming and squaring the pipe ends to be joined and a heater for melting the pipe ends for fusing are umbilically connected to the machine for on-board or remote operation. The computer, also on an umbilical, enables the operator to operate the machine in a normal mode in which the operator manually controls the facing, soaking and fusing processes or an automatic mode in which the fusing process is automatically controlled by the computer.

Abstract: A process to form a continuous fin helically around the exterior of a cylindrical tube by rotation of a primary forming roller and rotation of a contiguous spindle roller. The process includes advancing and inserting the fin in a gap between the primary forming roller and the spindle roller. The gap between the primary forming roller and the spindle roller is closed and the fin is tightly gripped therebetween. The tube is axially moved for a first, chosen length, while, at the same time, the tube is rotated at a first speed, the primary forming roller is rotated at a first speed and the spindle roller is rotated at a first speed. Thereafter, the tube is axially moved for a second, chosen length, while, at the same time, the tube is rotated at a second speed, the primary forming roller is rotated at a second speed, and the spindle roller is rotated at a second speed.

Abstract: An apparatus for facilitating the servicing of a printed circuit board which is removed from a support structure. An extender board is inserted into the space from which the board to be serviced is removed, and the extender board has zero-insertion-force connectors thereon to provide electrical connections to the board to be serviced. A collapsible support is used to support the board being serviced, and additional power connections are supplied to enable the board being serviced to maintain normal board-to-board signal flow while being examined outside of the support structure.