Abstract:
Reactive fluids that react upon contact and are intended to be combined only at a site of application that is remote or not easily accessible are transported to the site by separate crescent internal gear pumps whose pump rates are governed by a control loop that uses individual mass flow rates and a common automatic controller. In preferred embodiments, a multi-lumen cable is used to convey the pump outputs individually to the application site, and an application head at the distal end of the cable both combines the individual flows and dispenses them to the site. The invention is useful for a variety of reactive systems and applications, but particularly for applying two-component epoxy linings to underground pipes.
Abstract:
The invention relates to a device in which at least two liquid or semi-liquid reagents can be stored separately. When used, the inventive device enables precise, chronologically defined, sequential reagent discharge in a reaction chamber by means of a linear movement without any prior mixing of said reagents.
Abstract:
A method for accomplishing a plurality of combinatorial processes in parallel using a microelectronic and fluidic array (device array) having micron-sized reservoirs, connecting microchannels and reaction cells etched into a substrate. The device array has a top feedthru plate, a center distribution plate and a bottom cell plate. The top feedthru plate serves as a cover for the device array and contains apertures selectively positioned above the reservoirs located in the center distribution plate. The center distribution plate includes a plurality of micron sized reservoirs, microchannels, reservoir feeds, cell feeds and overflow feeds for the distribution of reagent fluids to the reaction cells located in the bottom cell plate. The detachable bottom cell plate serves as a microlaboratory tray of reaction cells. Once the proper reagents or other materials are introduced into the reaction cells, the bottom cell plate is decoupled from the device array and removed for incubation or analysis.
Abstract:
A fuel reforming apparatus includes a vaporizing device, a vapor mixing device and a reforming device. The vaporizing device produces a vapor by vaporizing at least a portion of a first one of a hydrocarbon fuel and water, without mixing with a second one of the hydrocarbon fuel and the water, so as to produce a vapor gas containing the vapor and air. The vapor mixing device receives the vapor gas from the vaporizing device, and creates a vapor mixture by spraying at least a portion of at least one of the hydrocarbon fuel and the water, which was not vaporized by the vaporizing device, toward the supplied vapor gas. Thr reforming device receives the vapor mixture from the vapor mixing device and reforms the hydrocarbon fuel to a reformate gas containing hydrogen. The temperature of the vapor gas supplied to the vapor mixing device can be adjusted such that the temperature of the reformate source gas supplied to the reforming device falls within a temperature range corresponding to an operating temperature of the reforming device. Vapor mixing the fuel immediately prior to supplying it to the reforming device enables a pre-reaction of the reformate source gas to be inhibited.
Abstract:
The system opens and closes an n×m array of liquid pathways using n+m valves. The pathways (2) run from top to bottom of a body (1). Control bars (4), also with liquid pathways (2), are inserted in channels (3). These are movable by a power source. The liquid pathways are opened to pass liquid when the pathways in the body and the control bars are aligned with each other.
Abstract:
An apparatus and concomitant method for controlling the delivery of fluids and, in particular, to the delivery of fluids to a receptor, e.g., delivery of pigments to a printing media or delivery of fluids to a reaction cell.
Abstract:
The invention provides electrode-based pumps and methods of operating such pumps. In one embodiment, the invention provides an electrode-based pump situated in a fluid channel comprising a first electrode and a second electrode, wherein the first and second electrodes have a diameter from about 25 microns to about 100 microns and are spaced from about 100 microns to about 2,500 microns apart. In another embodiment, the invention provides an electrode-based pump comprising a first electrode, second electrode and third electrode.
Abstract:
Apparatus for the delivery of a chemical slurry to at least one downstream facility. The apparatus comprises a measuring vessel of predetermined volume into which a liquid chemical component is introduced. A conduit connects the measuring vessel to multiple chemical sources, wherein each of said chemical sources comprises a liquid chemical component. Another conduit connects the measuring vessel to at least one mix tank. A pressure-vacuum vessel is in communication with said at least one mix tank, whereby chemical is drawn from said at least one mix tank to the pressure-vacuum vessel under negative pressure and chemical is delivered from the pressure-vacuum vessel to said at least one downstream facility under positive pressure. The pressure-vacuum vessel is in fluid communication with both said at least one mix tank and said at least one downstream facility. Valves on each of the conduits control the chemical flow therethrough. The chemical slurry is produced in said least at one mix tank by combining chemicals from one or more of the multiple chemical sources, and the slurry is delivered from said at least one mix tank to said at least one downstream facility.
Abstract:
A rotoformer includes a rotary drum for dispensing drops or strips of a free-flowing compound onto a cooling belt. A heating hood overlies the drum and is swingable to an inoperative position to afford access to the drum. The hood is mounted for swinging movement on a vertical axis which is offset from a horizontal axis of rotation of the drum so that when in its inoperative position, no part of the hood overlies the cooling belt. A part of the hood is relocatable, e.g., by being swingable upwardly, or by being detached, to permit the hood to be swung to its inoperative position.
Abstract:
An oxide superconducting material is coated with silver or an alloy thereof and shaped into a linear body, and the linear body is subjected to diameter reduction by means of groove roll rolling, a swaging machine and the like, and then differential speed rolling and heat treatment are repeatedly performed, whereby the linear body is shaped into a tape-shaped wire material. The microstructure control in the longitudinal direction is performed uniformly and efficiently, and a superconducting wire having a high c-axis orientation ratio and a large critical current density Jc at a service temperature is obtained.