Abstract: An apparatus for cleaning the specimen and interior specimen chamber of Transmission Electron Microscopes, and similar electron- or charged-particle-beam instruments consisting of a plasma cleaning device mounted on a hollow rod that replaces the stage through the air lock of the instrument by being the same shape and size as the stage support rod. The plasma cleaning device is a small hollow cathode that is excited by RF power. Air or other oxygen containing mixtures is admitted to the plasma through the hollow rod at a pressure below 1 Torr. The plasma creates oxygen radicals from the oxygen containing gas. The oxygen radicals oxidize the hydrocarbons contamination and convert them to easily pumped gases. The apparatus can be attached to the electron microscope whenever cleaning is needed, and then is easily removed to return the instrument to its analytical function.

Abstract: The system and method are utilized to control the flow of crude oil, natural gas, and field produced salt water to optimize production from an oil or gas well. The invention is suitable for use with a well that utilizes gas-lift as artificial lift. The equipment is designed to regulate the flow of injection gas into the production tubing to optimize production of the well.

Abstract: An improved method and apparatus for staining samples of biological material for accurate analysis of the sample. Biological material is applied to a substrate, such as a microscope slide. The biological specimen is then stained with a selected staining composition, which may be gentian violet for a Gram's Stain analysis. The stained biological material is at least partially decolorized and the level of decolorization is analyzed optically. If necessary, the decolorizing step and the optical analysis steps are repeated until a selected level of decolorization is obtained.

Abstract: An injection molding apparatus for injecting resin into a mold comprises an injection cylinder in fluid communication with the mold, wherein movement of a piston relative to the cylinder injects a selected quantity of resin into the mold. A plasticizing unit includes a flighted screw rotating in a heated containment barrel for plasticizing resin. The plasticizing unit is in fluid communication with the injection cylinder for supplying the injection cylinder with plasticized resin. A valve is provided for selectively placing the injection cylinder in fluid communication with the mold and placing the plasticizing unit in fluid communication with the injection cylinder, wherein the valve exerts pressure on resin in the mold independently of the injection cylinder or plasticizing unit. The valve is actuated by relative movement between the mold and one of the injection cylinder and the plasticizing unit.

Abstract: A generally laminar cover member extends between the sidewalls, end wall, and tailgate of the bed of a pickup truck and is removably secured to at least one of the sidewalls and end wall. The cover member is formed of a rigid material adapted to bear a load and is secured to the sidewalls in a location to leave at least 75% of the bed volume under the cover usable for storage. At least one leg member is secured to one side of the cover member, the leg members being selectively extendable to permit use of the cover as a table when the cover is removed from the bed of the pickup truck.

Abstract: An improved method and apparatus for staining samples of biological material for accurate analysis of the sample. Biological material is applied to a substrate, such as a microscope slide. The biological specimen then is then stained with a selected staining composition, which may be gentian violet for a Gram's Stain analysis. The stained biological material is at least partially decolorized and the level of decolorization is analyzed electron optically. If necessary, the decolorizing step and the optical analysis steps are repeated until a selected level of decolorization is obtained.

Abstract: An elongate projection or probe extends from the injection unit of an injection molding apparatus. A passage extends through the projection in fluid communication with the injection unit. A generally cylindrical receptacle is formed in a portion of the mold of the injection molding apparatus for receiving the projection in generally concentric sliding relation. The receptacle is in fluid communication with the mold cavity, wherein relative movement between the projection and the receptacle causes injection unit to be selectively in fluid communication with the mold.

Abstract: The dimensional boundaries of a part are determined in a computer CAD/CAM system, including x, y, and z dimensions. A reference surface is provided and a first incremental layer of mold material is formed on the reference surface. The first incremental layer of mold material is selectively interrupted to define at least one dimensional boundary of the object. A first incremental layer of object material is formed upon at least the reference surface and assumes the dimensions defined by the interruption in the layer of mold material. The steps of forming incremental layers of mold and object material are repeated until the object or part is fully fabricated and all dimensional boundaries are defined.

Abstract: A rotary prime mover, preferably an electric motor, is remotely operable from the cab of the vehicle. A linkage couples the rotary prime mover to the pins of the slider assembly, wherein rotation of the rotary prime mover selectively moves the pin in and out registry with holes in a pair of rails on the trailer to prevent and permit relative movement between the rear tandem axle assembly and the trailer. A pin sensor is coupled to the linkage to detect whether the pins are in or out of registry with the holes in the rails and a counter is coupled between the rear tandem axle assembly and the trailer to determine with which of the holes in the rails the pins are aligned. A visual display is provided in the cab and coupled to the pin sensor and counter to communicate to the operator the registry of the pins and with which of the holes the pins are aligned.

Abstract: A quantity of fluid resin material is rendered into a flowable state without the use of solvents. The fabric then is beaded with at least one elongate bead of the flowable resin, wherein at least a portion of bead remains on the surface of the fabric to tackify the fabric and facilitate lay-up of the beaded fabric in the composite molding process. The fabric then is laid-up into a molding apparatus, wherein the bead adheres to surfaces in the molding apparatus and assists in positioning of the fabric therein. A further quantity of resin is disposed or injected under pressure into the molding apparatus and into contact with the fabric and contours of the mold. The resin then is cured to form the composite body.

Abstract: A fluid motor integrally constructed on an elongate body enables periodic fluid sampling. This device affixes to a pipeline by a threaded connection which positions an inlet in the pipeline for sample removal; the sample flows to a sample bite removal valve which is motor operated to obtain periodic simple bits. Pressure step up or down is achieved in a sample pressure isolation system having a check valve function. This enables storage at any pressure.