Abstract:
An apparatus and methods for applying an inner coating to a wellbore screen are described. The apparatus comprises a support for the wellbore screen, an elongate injector for injecting coating material into the inner bore of the wellbore screen, and a driver for positioning the elongate injector into the inner bore and moving the elongate injector through the inner bore to introduce coating material to the inner bore. The elongate injector has a supported end, a distal end, and a coating material delivery line extending through the elongate injector from a coating material supply to a port at the distal end.
Abstract:
A superhydrophobic surface includes a plurality of microfeatures disposed on a substrate and a gas generator disposed within the microfeatures, the gas generator configured to generate a gas within the microfeatures. Gas is generated within the microfeatures when at least a portion of the microfeatures is in a wetted state to restore the microfeatures to a dewetted state. Gas generation is self-regulating in that gas generation automatically starts when a wetted condition exists and stops when sufficient gas has been generated to recover a dewetted state that restores superhydrophobicity.
Abstract:
A turbine component surface treatment process includes passing a UV-curable maskant through one or more fluid flow passages, wherein at least a portion of the UV-curable maskant exits the one or more fluid flow passages at an exterior surface of the turbine component, applying a UV light to the exterior surface of the turbine component, wherein the UV light cures at least a portion of the UV-curable maskant exiting the one or more fluid flow passages, and, treating the exterior surface with a treatment material, wherein the portion of the UV-curable maskant cured by the UV light substantially blocks the treatment material from entering the one or more fluid flow passages.
Abstract:
A superhydrophobic surface includes a plurality of microfeatures disposed on a substrate and a gas generator disposed within the microfeatures, the gas generator configured to generate a gas within the microfeatures. Gas is generated within the microfeatures when at least a portion of the microfeatures is in a wetted state to restore the microfeatures to a dewetted state. Gas generation is self-regulating in that gas generation automatically starts when a wetted condition exists and stops when sufficient gas has been generated to recover a dewetted state that restores superhydrophobicity.
Abstract:
An application tip and method for dispensing a fluid into a hole, the tip having a hollow housing or body with an open end and a closed end, the open end configured to be removably attached to and in fluid communication with a fluid source, the closed end including a nozzle having at least one passage or fluid outlet opening.
Abstract:
An apparatus and methods for applying an inner coating to a wellbore screen are described. The apparatus comprises a support for the wellbore screen, an elongate injector for injecting coating material into the inner bore of the wellbore screen, and a driver for positioning the elongate injector into the inner bore and moving the elongate injector through the inner bore to introduce coating material to the inner bore. The elongate injector has a supported end, a distal end, and a coating material delivery line extending through the elongate injector from a coating material supply to a port at the distal end.
Abstract:
The invention relates to a machine for coating the interior of a pipe. The machine can be pulled through and positioned within a pipe or pipeline by a internal pipe tractor, and can be used to apply viscous liquids, including two part epoxies and urethanes, to the interior wall of the pipe. The machine is typically used for the overcoating of portions of pipe having defects in their internal coatings, for example, at their girth welds.
Abstract:
Methods for coating medical devices for implantation within a body vessel are provided comprising providing a cylindrical container, placing a medical device inside the cylindrical container, and applying a polymer in liquid form inside the container.
Abstract:
A method of uniformly distributing liner on an interior of a tube includes providing an apparatus comprising a horizontal bed, a tailstock coupling mounted on the horizontal bed, a drive coupling and a drive unit connected to the drive coupling; mounting the tube in the tailstock and drive couplings; and spinning the tube using torque control of the drive unit. In one embodiment, the method includes dispensing a continuous bead of liner on the interior of the tube and spreading the liner on the interior of the tube using a brush.
Abstract:
An apparatus and method for applying a fluid to the through holes, vias, or other recesses of a printed wiring board is disclosed. The apparatus is a roller assembly. The roller comprises a cover and an interior portion and is supported by a mounting. A fluid supply provides treatment fluid to the interior portion. A feed transports a board into contact with the roller. The method is carried out by transporting fluid to the interior portion of the roller. The fluid then passes from the interior portion to the cover. A board is transported into contact with the roller assembly. Upon contact with a board, the roller cover deforms so that it distributes fluid across the board and pushes the fluid into the board's recesses. The roller assembly quickly receives and coats printed wiring boards while penetrating and coating recesses with high aspect ratios using minimal amounts of treatment fluid.