Abstract: A heat exchange apparatus comprises an evaporation unit 1 for exchanging heat between a working fluid and a high-temperature fluid to thereby evaporate the working fluid, a condenser unit for exchanging heat between the working fluid and a low-temperature fluid to thereby condense the working fluid, an evaporation-side communication unit 5a for leading the working fluid evaporated in the evaporation unit 1 to the condenser unit 2, and a condenser-side communication unit 5b for leading the working fluid condensed in the condenser unit 2 to the evaporation unit 1. The high-temperature fluid is prevented by condenser-side shield plates 101, 102 from flowing to the condenser-side communication unit 5b. As a result, the heating and evaporation of the working fluid in the condenser-side communication unit 5b by the high-temperature fluid is prevented or reduced thereby preventing a dry-out phenomenon.

Abstract: A chemical dispensing apparatus includes a housing and a cartridge support within the housing. A rotating cartridge with chemical stick receptacles is rotatably supported about an axis of rotation by the cartridge support. An injection passage at the bottom of the housing permits chemical sticks to pass from the housing when one of the chemical stick receptacles is in a chemical dispensing position in axial alignment with the injection passage. A drive system rotates the rotating cartridge. The drive system includes a rotational stop biased into engagement with the rotating cartridge, and a pneumatic cylinder having first and second ends. The first end is stationary at a point off-axis from the axis of rotation of the cartridge. The second end has an engagement member, such that as the pneumatic cylinder extends, the engagement member applies a force to one of the chemical stick receptacles to selectively rotate the rotating cartridge.

Abstract: A wellbore cleanup tool features a flow diverter that comprises a series of bristles mounted on a sleeve that slides on a spiral track on a mandrel. For run in the sleeve is in an upper position with respect to the mandrel and allows flow around the outside of the screen and through passages defined between the sleeve and the mandrel. When coming out of the hole, the sleeve shifts down and the bristles block flow through themselves so as to direct the debris laden fluid under the sleeve that now rests on top of the screen. The defined flow path is under the sleeve and behind the screen leaving the debris trapped and allowing the fluid to pass through the screen without the debris.

Abstract: A packer assembly for use in wellbore operations includes a first packer and a second packer interconnected by an adjustable length spacer. The spacer provides a mechanism for adjusting the distance between the first packer and the second packer when the assembly is positioned in a wellbore.

Abstract: A rod guide 10 for positioning on a sucker rod includes a sleeve-shaped guide body 12 and two or more spiraling vanes 14, 16 each extending radially outward from the sleeve-shaped body, with each vane spiraling about the body and defining a flow path between circumferentially spaced vanes. Each vane has a forward portion 24 spiraling in a forward direction, and a backward portion 26 spiraling in a backward direction rotatably opposite the forward direction. The rod guide may be used for either reciprocating rod or rotating rod applications.

Abstract: An oil and gas well assembly is provided that includes a wireline cable having at least one optical fiber; a downhole tool having at least one optical fiber; and a cablehead having a first end connected to the wireline cable, a second end connected to the downhole tool. The cablehead further includes at least one optical fiber which transmits data between the at least one downhole tool optical fiber and the at least one wireline cable optical fiber.

Abstract: In a downhole steam generator, hydrogen, oxygen, and water are separately injected into an oil well. The hydrogen and oxygen are made to react, either with the aid of a catalyst or due to an electric spark. Heat from the reaction converts the water in the area into steam, which is then used to enhance the production of the oil well. The hydrogen may be produced at the surface of the well by the steam reforming of a hydrocarbon. The hydrogen injected into the well may be provided as part of a reformate mixture produced by the steam reforming process. The water is preferably atomized by the stream of oxygen immediately before ignition, so as to provide a maximum surface area for heat absorption.

Abstract: A connection to a stub downhole is accomplished in a variety of ways. A string has a tapered lower end inserted into the stub and expansion occurs from within the tapered lower end into the stub to leave a connection without reduction of the internal diameter. An overshot fitting can be lowered outside the stub and the stub expanded from within against the overshot. Both options in a single tool can be used to get sealing around the inside and the outside of the stub. An adjustable swage can be used with the overshot configuration where the overshot has an internal groove. The adjustable swage expands from within the stub into the surrounding groove in the overshot.

Abstract: A sintered rod-shaped proppant and anti-flowback agent possesses high strength and high conductivity. The sintered rods comprise between about 0.2% by weight and about 4% by weight aluminum titanate. In some embodiments, the sintered rods are made by mixing bauxitic and non-bauxitic sources of alumina that may also contain several so-called impurities (such as TiO2), extruding the mixture, and sintering it. The starting material may optionally be milled to achieve better compacity and crush resistance in the final sintered rod. A fracturing fluid may comprise the sintered rods alone or in combination with a proppant, preferably a proppant of a different shape.

Abstract: Methods and apparatus for perforating a formation in a wellbore without perforating a well bore casing. The methods and apparatus include an external casing perforating device configured so as not to perforate the casing. The interior of the perforating device serves as a fluid flow path between the casing and the formation following perforation and a valve in the casing selectively opens and closes the flow path.

Abstract: The present invention provides a method of inhibiting formation of solid hydrates in a conduit used to contain a flowing, water-containing hydrocarbon, which method comprises introducing into said hydrocarbon in said conduit a gas which raises the pressure threshold for hydrate formation for said water-containing hydrocarbon, said gas being introduced in a manner which causes it to travel along at least part of said conduit in the direction of hydrocarbon flow.

Abstract: An actuation system for a tubular handling mechanism of a tubular handling assembly, the actuation system comprising: a mud flow path passing through rotating parts and non-rotating parts of the tubular handling assembly; a valve assembly including a valve seat in the mud flow path and a ball, the valve seat positioned to be in hydraulic driving communication with the tubular handling mechanism; and a ball drop assembly including an opening to the mud flow path through which the ball is released and wherein the ball drop assembly opening is positioned in a non-rotating part.

Abstract: An hydraulic snubbing unit has a pair of hydraulic cylinders for moving travelling snubbing slips towards and away from stationary snubbing slips to snub a pipe through the snubbing unit, the hydraulic cylinders having spaced, parallel cylinder rods. A pipe guidance apparatus has pipe guides between the stationary snubbing slips and the travelling snubbing slips, the pipe guides each having a pair of cylinder rod openings spaced apart from one another and slidably receiving the rods of the hydraulic cylinders and a pipe guidance opening located between the cylinder rod openings and slidably guiding the pipe, and a pipe guide spacer having extendable and contractible interconnections between the pipe guides.

Abstract: Electrically operated well tools. A well system includes a well tool positioned in a wellbore. The well tool includes an actuator and an operating member displaceable to operate the well tool. The actuator includes a series of longitudinally distributed electromagnets, in which current is controllable in a predetermined pattern to thereby variably control longitudinal displacement of the operating member. In another well system, the operating member is displaceable between opposite maximum limits of displacement to operate the well tool, and an electromagnet is operative to displace the operating member to at least one position between the opposite maximum limits of displacement. In a method of operating a well tool, the well tool is operated by controlling current in a series of longitudinally distributed electromagnets of an actuator in a predetermined pattern, thereby causing corresponding longitudinal displacement of an operating member.

Abstract: A tool for moving within a passage comprises an elongated body having an internal fluid chamber, at least one gripper assembly engaged with the body, a turbine, and a power transmission assembly. The body is configured to be secured to a fluid conduit so that a first fluid flowing through the conduit flows into the internal fluid chamber of the body. The gripper assembly has an actuated position in which the gripper assembly grips onto an inner surface of the passage to substantially limit relative movement between the gripper assembly and the inner surface. The gripper assembly also has a retracted position in which the gripper assembly permits substantially free relative movement between the gripper assembly and the inner surface of the passage. The turbine is configured to receive the first fluid flow through the internal fluid chamber, the turbine having an output shaft configured to rotate as the first fluid flows through the turbine.

Abstract: An inflatable element utilizing a solid or particulate laden fluid as an expansion media. A fluid component of the solid or particulate laden fluid is exhausted from a defined area of the element to leave substantially only particulate matter therein to maintain the expanded state of the seal. A method for sealing includes pumping a solid laden or a particulate laden fluid to an expandable, pressurized element. A fluid component of the solid or particulate laden fluid is removed from the expandable element with substantially solid material comprised to maintain the expanded element in the expanded condition.

Abstract: An upright fire protection sprinkler having an input orifice at an input end of the sprinkler for receiving fluid and an output orifice at an output end of the sprinkler for outputting fluid. The sprinkler has a connection portion at the input end of the sprinkler and a body extending between the connection portion and the output end. A pair of frame arms extends from the output end and meets at a hub positioned in axial alignment with the output orifice. A deflector is positioned on the hub and is configured to direct fluid output from the output orifice substantially in a direction back toward the output end.

Abstract: Delivery of pelletized carbon dioxide (dry ice) to a target material such as a hazardous material or a fire from a distance, by projection, spraying, or aerial dropping the pelletized carbon dioxide onto the target material using gravity. Delivery may be made by a mobile apparatus. The types of target material with which the present invention is designed to apply may include, e.g., hydrocarbon material, hazardous material, burning material, and the like. The carbon dioxide may be pelletized to diameters in a size range of about 3 mm to 100 mm.

Abstract: Improvements to a portable fire extinguisher where the improvements relate to a system where the owner of the extinguisher can service and maintain their fire protection. Systems in place today require the servicing of a third party. The service companies (third parties) are charged with maintaining the system. Further Improvements include an anti-bridging mechanism that is articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. The improvements further include a wall mounting bracket that reduces tampering with the extinguisher, an automatic fluffing motor and manual fluffing wheel with a chuck for use with a drill. These features extend the service intervals while maintaining the fire extinguisher in a ready condition. The fire extinguisher is construction of components that are interchangeable and provide equal operation for left and right handed people.

Abstract: A fire fighting tool includes an elongated hollow cylindrical nozzle having a plurality of openings surrounding the nozzle, a tubular member and a coupling for connecting the tubular member to a hose. The tool also includes a mounting member for positioning the nozzle within an interior of a structure. The mounting member includes a base, an upper member and a pair of rotatable clamping members adjustably mounted on the mounting member for engaging inner and outer surfaces of a wall. The mounting member and nozzle extend through an opening in the wall for spraying water or other fire suppressant onto the fire. The tool also includes a rotatable heat shield for protecting a fireman from heat and smoke and a handle for carrying the tool.

Abstract: A draft load control system for an agricultural tractor having electronic engine and draft load controllers interconnected by a digital communications bus over which parameters for engine load are made readily available to the draft load controller. The draft load control system is suitable for front-mounted, rear-mounted, or towed implements without requiring additional sensing equipment.

Abstract: An exemplary embodiment providing one or more improvements includes a frame which is attached to the front or rear of a lawn mower, and a spike assembly attached to the frame which provides spikes on rotating collars. The spikes penetrate and are withdrawn from the soil when the mower is moved, thereby aerating the soil. Embodiments can be attached to a vertical or horizontal surface on a mower. Guards optionally may protect the user from any injury.

Abstract: An agricultural implement for towing over fields, for incorporating crop residues into soil, possessing a pair of juxtaposed, substantially parallel, spaced-apart, rotatable shafts, comprising a first forwardly-mounted shaft and a second rearwardly-mounted shaft, each mounted on a frame transversely to a direction of travel of said implement. A plurality of protruding tine members, extending substantially radially outwardly from each of said pair of shafts and longitudinally spaced along each of said pair of shafts, each tine member adapted to rotate about a longitudinal axis of a respective shaft, a tip of each of said tine members when rotating about said respective shaft creating a circular arc, are further provided. The circular arcs of the tine members on one of said pair of shafts interdigitate with a corresponding plurality of circular arcs of said tine members on said other of said pair of shafts.

Abstract: The lawn mower attachment provides a combination of lawn roller accessories and a spreader, the combination being attached to the rear of a self-propelled lawn mower. A frame that includes a pivotally connected roller suspension member is attached to the rear of a self-propelled lawn mower via a series of attachment brackets. The roller suspension member can be retracted when not in use. A super-retracted position is available for removal and replacement of the roller. Various style rollers are provided to enable a user to perform aeration, de-thatching, leveling, plugging, and the like. A roller extension member can provide an extra wide path of roller operation. Handle and control extensions are provided for compatibility of the lawn mower attachment with the existing lawn mower. Weights can be added over the rear wheels of the lawn mower to facilitate effective soil penetration of the roller attachment during operation.

Abstract: Non-highway vehicle plowing systems are described. The plowing system includes a mount assembly having a lower mount bracket, a plow mount bracket, an upper mount bracket, and an actuator bracket. The lower mount bracket is attached to the non-highway vehicle and the plow mount bracket is pivotably connected to the lower mounting bracket. The upper mount bracket is also secured to the non-highway vehicle and is constructed to engage the actuator bracket at a plurality of positions thereby allowing the plow mount assembly to be operable with a plurality of non-highway vehicles. The systems provide advantages in that the systems are not vehicle specific and are adaptable to different vehicle structures.

Abstract: A modified box scraper system that is fitted with a first, second and third plurality of attachment means located on the rearward end and both sides of the box scraper allowing for the attachment of a variety of modified work implements, said modified work implements including box scraper extensions, a road repair fabric applicator, a trench compaction wheel, a slope board, a rear forklift system, a windrow scraper, a backfill blade and a serrated cutting blade.

Abstract: A toploading ripper loop for attachment to the tool frame of a tractor has a low silhouette, elongated, v-shaped moldboard with a support arm attached at each end of the moldboard. Each support arm is formed in the shape of an upside down “J” or hook and is defined by a first elongated portion which attaches to the moldboard, a u-shaped transition portion that transitions into a second downward extending portion that terminates in a downward facing end. The downwardly facing end is disposed to engage the slot of the tool frame carried by the tractor. A support crossbeam extends between the arms, at the apex of the transition portion and above the downward facing ends, to define an enlarged choke.

Abstract: The invention relates to an electrical hand tool device, particularly a drill, screwdriver, hammer drill, or percussion drill, with at least an optional rotating drive for a tool mountable in a tool receptor, with a motor housing (10) and a transmission housing that is separate from the motor housing (10) but connected with it, whereby the motor housing (10) is formed of two half-shells (12, 14) that essentially lie within a plane extending along the longitudinal axis of the electrical hand tool device and dividing the electrical hand tool device essentially into two symmetrical halves (12, 14) with their side edges matching each other, whereby a handgrip (30) is provided on the motor housing, and whereby the two half-shells (12, 14) are connected with each other by means of a clip (18) extending longitudinally holding them clamped together.

Abstract: A door hinge assembly is provided for an enclosure including a housing having a panel member, and a plurality of sides extending outwardly from the panel member to define an interior and an opening for providing access to the interior. The door hinge assembly includes a generally planar portion covering the opening of the housing of the enclosure, at least one side flange portion extending outwardly from the generally planar portion toward the housing of the enclosure and including a number of bends forming at least one first hinge element, and at least one second hinge element disposed at or about one of the sides of the housing to pivotably receive a corresponding first hinge element. The side flange portion, including the first hinge element thereof, is a single continuous piece of material. The door hinge assembly is movable between an open position and a closed position.

Abstract: An electrical connection box includes a box body. The box body has a top wall and a side wall. The top wall is inclined to a horizontal plane and has an edge portion arranged at a lower side in an inclination of the top wall. The side wall is connected to an edge portion of the top wall. A drainage channel is provided along the edge portion of the top wall. A drainage port is provided at an edge of the drainage channel. The drainage port is placed at a position spaced from the side wall.

Abstract: A cover assembly for use on a recessed in-floor fitting. The cover assembly includes a flange configured to be mounted along the surface of a floor and a cover rotatably connected to the flange and configured to be moved with respect to the flange from a closed position covering the interior of the in-floor fitting to an open position allowing access to the interior. The cover includes a gasket that forms a radial seal along an inner wall of the flange when the cover is in the closed position and at least one door that is movable from a closed position that covers up an egress passageway in the cover to an open position that exposes the egress passageway. The door is configured to slide under a top surface of the cover when moved between the open and closed positions and is biased toward the closed position.

Abstract: This disclosure is directed to electrical connectors that include a connector body having an inlet end opening and an outlet end portion wherein the outlet end portion is provided with an outer surface that slopes downwardly toward the outlet opening and having a complementary sloping or frustro-conical, snap fit, retaining ring with locking tangs and grounding tangs for snap locking the outlet end portion to an electric box or enclosure, and including an embodiment having a cable strap retainer hingedly connected to an associated cable support saddle to render the cable strap retainer readily detachable from the saddle in a manner that prohibits any unintentional detachment of the strap therefrom when rotated between a cable clamping and unclamping position suitable for securing thereto either a non-metallic cable or an armored or metal clad cable, wire conductor and the like.

Abstract: A twist-on wire connector containing a mass of a cohering gel in a gel state therein for forming a protective covering over a wire connection in the twist-on wire connector with the gel thereon removal from the twist-on wire connector and peelable from the wire connection to enable one to quickly form a further wire connection without having to wipe off the wire connection.

Abstract: A cable having multiple conductors suitable for wide frequency range applications. A cable contains conductors that are parallely arrayed and surrounded by a common insulation. At least two of the conductors are different types of conductors. They may be different in structure, shape, size, material, or any combination thereof.

Abstract: A karaoke device is included within an enclosure and having a voice pickup element integrated into the enclosure for converting sound waves into an electrical signal. An audio input signal from a DVD player passes into the enclosure and into an electronic circuit for amplifying the electrical signal, for controlling the amplitude of the electrical signal and for mixing the electrical signal and the audio input signal into a mixed audio signal. The resulting audio output signal is delivered to an output device such as a television.

Abstract: In an optical thin-film arrangement on a transparent optical substrate, such as a display screen, two or more conductive layers are stacked in an alternating fashion with one or more dielectric layers. The conductive layer can include, for example, indium-tin oxide (ITO), and the dielectric layer can include an index-matching material. The conductive layers can be in electrical contact with one another at their peripheries to provide EMI/RFI shielding. A structure having more than one conductive layer can be made to have the same net sheet resistance and thus provide the same degree of shielding as a conventional single-layer conductive coating but with lower reflectivity.

Abstract: A cable organizing device is adapted for use on an electronic device including a body, a plug, and a cable connected to the body and the plug to establish an electrical connection therebetween. The cable organizing device includes a coupling unit and a receptacle unit. The coupling unit is adapted to be secured to the body of the electronic device. The receptacle unit includes a first component connected to one side of the coupling unit that is distal from the body of the electronic device, and a second component connected to the first component at an angle and spaced apart from the coupling unit. The first and second components cooperatively define a stowage region adapted to stow the cable. The second component is provided to prevent undesired removal of the stowed cable from the stowage region.

Abstract: A wired circuit board has a metal supporting board, a metal foil formed on the metal supporting board to have a thickness of less than 2.0 ?m, a first insulating layer formed on the metal supporting board to cover the metal foil, and a conductive pattern formed on the first insulating layer.

Abstract: A printed circuit board includes a power plane, a ground plane insulated from the power plane, and at least one via. The power plane includes two power modules, an insulating medium for insulating the two power modules, and a signal transmission line positioned between the two power modules and insulated from the two power modules by the insulating medium. The at least one via connects the signal transmission line with the ground plane for conducting simultaneous switching noise (SSN) transmitted to the power modules to the ground plane.

Abstract: Disclosed herein are a thin printed circuit board, in which a pair of high-functional resin substrates having a permittivity ranging from 1.5 to 4.0, on one surface of each of which a circuit pattern is formed through ion-beam surface treatment, vapor deposition and electroplating, are layered with an insulating layer interposed therebetween, and a method of manufacturing the printed circuit board. The circuit patterns are positioned inside the substrates. Thereafter, external layers are formed through ion-beam surface treatment, vapor deposition and electroplating. According to the present invention, the adhesiveness between each of the substrates and a metal layer may be improved through the ion-beam surface treatment/vapor deposition.

Abstract: A substrate for circuits is provided in this invention. The substrate includes a first voltage reference plane, a second voltage reference plane, a first dielectric layer, and a plurality of second dielectric materials embedded in the first dielectric layer. The first dielectric layer is between the first and second voltage reference planes. Each of the plurality of second dielectric materials includes a first end contacted with the first voltage reference plane and a second end contacted with the second voltage reference plane. The dielectric constant of the first dielectric layer is different from the dielectric constant of the second dielectric materials.

Abstract: A manufacturing method and structure for substrate with vertically embedded capacitors includes the steps of providing a plurality of conductive layers having a first dielectric layer and a leading wire layer formed on the first dielectric layer, providing a plurality of composite layers having a second dielectric layer and a patterned electrode layer formed on the second dielectric layer, laminating the conductive layers and the composite layers to form a block which defines a plurality of substrates with vertically embedded capacitors and a plurality of sawing streets between the substrates, and sawing the block along the sawing streets to singularize the substrates.

Abstract: A printed wiring board group includes a plurality of printed wiring boards wherein a difference (???AB) between an average electric resistance (A-ave.) of wires formed in one printed wiring board (A) and an average electric resistance (B-ave.) of wires formed in a printed wiring board (B) adjacent to the printed wiring board (A) is within a range of ±5% of an average electric resistance (AB-ave.) of the wires of the printed wiring boards (A) and (B); and a difference (???ab) between an electric resistance (a-3) of an outermost wire of the printed wiring board (A) and an electric resistance (b-3) of an outermost wire of the printed wiring board (B) is within a range of ±11.05%, preferably within a range of ±6.12%, and is particularly preferably within a range of ±6.00% of the average electric resistance (AB-ave.) of the printed wiring boards (A) and (B).

Abstract: To suppress electromagnetic waves leaking through a power distribution circuit provided on a printed wiring board or a semiconductor package, and to prevent a degradation of a waveform of a signal excited by a high-speed digital circuit. A metal 10 is provided which has a dielectric coating 20 on its surfaces and is shaped like a long plate with a valve action, and the valve metal is coated with a layer 30 of a conductive material via the dielectric coating 20, so that a characteristic impedance viewed from an input terminal can be reduced over a wide band.

Abstract: A multi-layer printed wiring board has a core substrate, a first interlayer insulation layer formed over the core substrate, a first filled via formed in the first interlayer insulation layer, a second interlayer insulation layer formed over the first interlayer insulation layer, and a second filled via formed in the second interlayer insulation layer. The first filled via has a bottom portion having a first diameter. The second filled via has a bottom portion having a second diameter smaller than the first diameter.

Abstract: Provided is a guard trace pattern reducing far-end crosstalk and a printed circuit board having the guard trace pattern. The guard trace pattern includes a first guard trace pattern parallel with two signal lines and a plurality of second guard trace patterns perpendicular to the first guard trace pattern to increase mutual capacitance between the two signal lines and the guard trace pattern and increase mutual capacitance between the two signal lines. The printed circuit board includes the aforementioned guard trace pattern disposed between micro strip transmission lines. A characteristic impedance of the guard trace pattern is different from a characteristic impedance of the micro strip transmission lines, and resistances having the same value as a resistance component value of the characteristic impedance of the guard trace pattern are provided to both ends of the guard trace pattern.

Abstract: Disclosed is an electromagnetic wave absorber, which is obtained by attaching a three-dimensional open-cell type metal porous body to an electromagnetic wave-reflecting surface and filling the pores of the three-dimensional open-cell type metal porous body with an electromagnetic wave-absorbing material.

Abstract: A flexible, non-halogen electric wire comprises a conductor fabricated by twisting a plurality of strands and an insulator covering the conductor; wherein: the diameter of each of strands is 0.12 to 0.31 mm; the insulator includes an ethylene copolymer including 25 to 40 weight percent of vinyl monomer, which has an oxygen element in its molecular structure, other than vinyl acetate as a main constituent and also includes an elastomer as an accessory constituent; the main and accessory constituents are mixed to prepare a resin material; the resin material and a metallic hydroxide are mixed to prepare a cladding material; the conductor is covered with the cladding material; and the cladding material is then bridged to form a cross-linked resin.

Abstract: A recessed electrical outlet box for mounting in a floor. The outlet box includes a body made at least partially of intumescent material and configured to retain at least one receptacle and a retention structure receiving the body. The retention structure is configured to retain the body within a hole in the floor and contain the expansion of the intumescent material.

Abstract: A power distribution system has an electrical box configured to attach a power cable, a plaster ring releasably mounted to the box and one or more electrical devices installed into the ring. A pre-wired ground extends from a first end physically and electrically connected to a ground terminal on the electrical device. The plaster ring is movable between a closed position proximate the box and an open position distal the box. The pre-wired ground is configured as a lanyard so as to support the plaster ring as a wiring platform in the open position for connecting wires between the power cable and the electrical device or devices.