Abstract: An adsorption heat exchanger may comprise a stack of alternating adsorption layers and heat transfer layers. Separator plates may separate the adsorption layers from the heat transfer layers. The adsorption layer may include a first corrugated sheet positioned between and brazed to the adsorption zone facing side of two separator sheets. The first corrugated sheet and the exposed portions of the adsorption zone facing side of the separator sheets may be coated with an adsorptive material. The heat transfer layer may include a second corrugated sheet positioned between and brazed to the heat transfer zone facing side of two separator sheets. The second corrugated sheet may be oriented about 90° to the first corrugated sheet.

Abstract: A dual mode heat exchanger has a first and second manifold with a plurality of flow tubes fluidly connecting the manifolds for passing refrigerant between the manifolds. The first manifold is divided into at least two chambers. The second manifold defines a single cavity but can form more than one chamber. Separators divide the cavities and are offset from each other creating groups of flow tubes that connect one chamber in each manifold. At least one port in each chamber of one of the manifolds is in the open position for controlling refrigerant circulation. All of the ports are opened in one of the manifolds to permit refrigerant to pass through all of the plurality of tubes in at least one pass in evaporator mode. At least one of the ports is closed to permit refrigerant to pass through all of the plurality of flow tubes in at least two passes in condenser mode.

Abstract: A heat exchanger assembly has a first manifold, a second manifold in spaced and substantially parallel relationship with the first manifold and a plurality of flow tubes fluidly connecting the manifolds for passing refrigerant between the manifolds. The first manifold includes a header and tank which are joined by their longitudinal edges to form a cavity. The tank is extruded and has an outer wall and an inner partition wall with a plurality of apertures which define a distribution chamber within the cavity. The distribution chamber is fluidly connected to the cavity. A method of manufacturing a manifold generally includes the steps of extruding the tank, cutting the tank to a predetermined length, forming a plurality of apertures in the inner partition wall, forming a plurality of openings in the header, joining the tank and the header, and joining the end cap to the tank and header.

Abstract: A heat exchanger assembly includes a first manifold having a first manifold body with an outer wall defining a cavity and an inner partition wall integrally formed with the outer wall to define a distribution chamber disposed within the cavity. A second manifold defines a hollow cavity and is in spaced and substantially parallel relationship with the first manifold. A plurality of flow tubes extend between and fluidly connect the cavities of the manifolds. The inner partition wall has a plurality of apertures fluidly connecting the distribution chamber with the cavity. A method of manufacturing the first manifold includes the steps of extruding the manifold body, forming a plurality of openings in the outer wall, forming a plurality of apertures in the inner partition wall, inserting a separator in the manifold body, and mounting the end cap to one end of the first manifold body.

Abstract: A heat exchanger assembly includes a first single-piece manifold and a second single-piece manifold spaced from and parallel to the first single-piece manifold. Each of the first and second single-piece manifolds has a tubular wall defining a flow path. A plurality of flow tubes extend in parallel between the first and second single-piece manifolds and are in fluid communication with the flow paths. An insert having a distribution surface is slidably disposed in the flow path of the first single-piece manifold to establish a distribution chamber within the first single-piece manifold. A series of orifices defined in the distribution surface of the insert are in fluid communication with the flow path and the distribution chamber for uniformly distributing a heat exchange fluid between the flow path and the flow tubes.

Abstract: A heat exchanger assembly includes a first and second manifold. Each of the manifolds includes a tubular wall and a pair of manifold ends spaced from each other defining a flow path. A plurality of flow tubes extend between the manifolds and are in fluid communication with the flow paths. An insert is slidably disposed in the flow path of the first manifold. The insert divides the flow path into a plurality of chambers. The chambers and the flow tubes cooperate to establish a plurality of flow passes. The flow passes are for directing a heat exchange fluid through the heat exchanger assembly. The chambers are useful for orienting and connecting plumbing connections at various locations along the manifolds.

Abstract: A heat exchanger, such as a condenser or a gas cooler for an air-conditioning system of a motor vehicle, has at least two fin/tube cores which have, on two opposite sides of the fin/tube cores, at least two collecting tubes which can have a flow connection to one another. The collecting tubes can have connecting or junction members which each co-operate with a closure plate or separating plate in order to make the heat exchanger easier to manufacture.

Abstract: A heat exchanger having an active surface over which a fluid flows to affect an exchange of heat between the active surface and the fluid. In some embodiments, the active surface includes a logarithmic spiral wherein the radius of the logarithmic spiral measured at equiangular radii unfolds at a constant order of growth. Further embodiments exhibit an active surface conforming to the internal or external surface of particular classes or genera of shells.

Abstract: A heat exchanger including a base plate portion with at least one heat generating component thermally connected thereto; at least one fin portion comprising a plurality of fins thermally connected to said base plate portion, arranged in parallel at a prescribed angle along a longitudinal direction of said base plate portion; an inlet portion through which a cooling fluid is introduced to each of said at least one fin portion; a baffle plate portion and a partition plate portion guiding said cooling fluid so that the cooling fluid is decelerated to be uniformly flown through fins in said at least one fin portion; and an outlet portion to evacuate the cooling fluid.

Abstract: Disclosed is a bypass valve assembly for a fluid device, such as a heat exchanger having an inlet and an outlet. The assembly defines a bypass passage communicating with the inlet at one end. A tubular structure communicates with the outlet and has a bypass aperture in a sidewall thereof which communicates with the other end of the bypass passage. A semi-cylindrical spring flapper is fitted in the tubular structure and opens to allow bypass flow when the pressure in the bypass passage exceeds a predetermined limit.

Abstract: A hanger flange includes an annular body having a circumferential inner surface defining a central passage and a circumferential outer surface. Ram alignment apertures are provided within the body spaced radially about the passage. Each of the apertures has a first portion with a non-circular first cross-sectional dimension extending radially outwardly from the inner surface and a second portion with a second cross-sectional dimension extending radially inwardly from the outer surface. A ram is positioned in each of the apertures. Each ram has a first portion having a first cross-sectional dimension corresponding with the first cross-sectional dimension of the apertures, and a second portion having a second cross-section dimension corresponding with the second cross-sectional dimension of the apertures.

Abstract: The invention relates to an apparatus for connecting a control line to a tubular string. In one embodiment, the apparatus includes a guide boom pivotable around a location adjacent the string and with a guide member at an end thereof to guide the control line. The apparatus further includes a clamp boom that is independently pivotable and includes a clamp housing at an end thereof for clamping the control line against the tubular string. The guide boom and the clamp boom each have a center line which is substantially aligned with the center line of the tubing string permitting the control line to be aligned adjacent the tubular string prior to clamping.

Abstract: A packer that uses an element that swells to the set position is disclosed having a device that boosts the set force of the swollen element against the borehole. The force is axially applied at one end or two and preferably comprises a cone driven by a stored or applied force such that the cone is driven between the element and the mandrel that supports the element. Initiation of the boost force can be varied in its timing and the power behind the cone can come from a variety of sources such as a spring, hydrostatic pressure, or applied forces, to name a few. The movement of the cone is locked to prevent reversal of its motion when the packer is set. The swelling enhances the engagement of the element to the cone to minimize relative movement between them.

Abstract: Methods and apparatus for radially expanding a tubular member.

Abstract: A method of removably anchoring well tubing in a well bore may include selecting a well having a bore diameter and an anchor positioned therein. The anchor may have a housing defining an anchor diameter and extension members extending therefrom toward the bore diameter. The bore diameter and anchor diameter may be spaced apart a distance defining an annulus therebetween and extending along the well. A tool sized to cut substantially exclusively within the annulus may be selected. The tool may be positioned within the annulus, rotated, and advanced to drive past the housing to remove the extension members between the housing and the bore diameter to free the anchor.

Abstract: A method and apparatus are useful for determining the flowrate of fluid flowing within a passage. The method comprises the step of measuring the equilibrium temperature of a location of interest within or proximate to the passage within which fluid flows. The temperature of the location of interest is perturbed to a second temperature, and the temperature of the location of interest is then allowed to return to its equilibrium temperature. The temperature of the location of interest is monitored as it transitions between the second temperature and the equilibrium temperature. The monitored temperature transition is then used to determine the flowrate of the fluid flowing within the passage.

Abstract: An apparatus, system, and method are disclosed for in-situ extraction of hydrocarbons from a hydrocarbon-bearing formation. The system includes a well drilled through a hydrocarbon-bearing formation, and a completion unit that places an injection tube near a fluid injection point near the bottom of a target zone and a production tube near a fluid production point near the top of the target zone. An isolation unit isolates the fluid injection point from the fluid production point such that injected fluid flows through the target zone. The system further includes a heat source, and a fluid that delivers thermal energy from the heat source to the hydrocarbons in the target zone to entrain the hydrocarbons in the fluid. The resulting production fluid is heated, free hydrogen is added, and the production fluid is treated on a catalytic reactor to reduce the size of the hydrocarbon chains.

Abstract: A system for producing oil and/or gas from an underground formation comprising a first array of wells dispersed above the formation; a second array of wells dispersed above the formation; wherein the first array of wells comprises a mechanism to inject a miscible enhanced oil recovery formulation into the formation while the second array of wells comprises a mechanism to produce oil and/or gas from the formation for a first time period; and wherein the second array of wells comprises a mechanism to inject a miscible enhanced oil recovery formulation into the formation while the first array of wells comprises a mechanism to produce oil and/or gas from the formation for a second time period.

Abstract: Provided herein are defoaming agents that comprise lecithin and a solvent. Optionally, they may comprise hydrophobic particles. One embodiment provides a method comprising: providing a well fluid that comprises foam; providing a defoaming agent that comprises lecithin and a solvent; and contacting the well fluid with the defoaming agent so that the amount of foam present in the well fluid is reduced.

Abstract: Settable fluids comprising particle-size distribution-adjusting agents, and methods of using such settable fluids in subterranean and surface applications are provided. In certain exemplary embodiments, the settable fluid comprises a cement, a set retarder, and a particle-size distribution-adjusting agent. Exemplary methods include, but are not limited to, methods of drilling with the settable fluids, methods of cementing with the settable fluids, and methods of using a settable fluid to displace another fluid from a well bore in a subterranean formation.

Abstract: The handling, transport and delivery of particulate materials, particularly fine particles, may be difficult. Alkaline earth metal oxide particles such as magnesium oxide (MgO) may be suspended in glycerin and/or alkylene glycols such as propylene glycol up to loadings of 51 wt %. Such suspensions or slurries make it easier to deliver MgO and similar agents into fluids, such as aqueous fluids gelled with viscoelastic surfactants (VES). The MgO serves as stabilizers and/or fluid loss control agents for VES-gelled fluids used to treat subterranean formations, e.g. for well completion or stimulation in hydrocarbon recovery operations. The particle size of the magnesium oxide or other agent may be between 1 nanometer to 0.4 millimeter.

Abstract: A method for removing mineral scale from tubing is disclosed. The method may include the steps of making a first longitudinal cut along a length of the tubing, making a second longitudinal cut along a length of tubing, and removing a plurality of sections of tubing, wherein the sections of tubing are defined by the first and second longitudinal cuts.

Abstract: In some embodiments, a method of delivering at least one chemical into an underground well equipped with a reciprocating plunger includes retaining the plunger above the well after the well is unloaded and shut in, dispensing at least one chemical into the well and releasing the plunger so that the plunger may drop in the well after the chemical(s).

Abstract: A subsea wellhead assembly has separable tree modules that interconnect together. The lower tree module has a lower tree member having a bore with a valve for controlling production fluid flow. The upper tree module has an upper tree member with a bore and interface devices for monitoring the fluid flow as well as controlling the flow. A production line sub is carried alongside the upper tree member. The sub has a stab interface that stabs sealingly into a stab interface mounted alongside the lower tree member.

Abstract: The invention concerns a system or a method for maintaining zonal isolation in a wellbore. According to the invention, the system comprises, at a specific location along said wellbore, a sealing element, said sealing element being able to deform both during and after placement and is maintained after placement under compression through a pressurising fluid or by confinement in a volume.

Abstract: An implement for a machine is provided. The implement has a frame, an operator interface, and a ratchet. The operator interface is pivotally attached to the frame about an axis. The ratchet is mounted about the axis and coupled to the frame and the operator interface.

Abstract: An agricultural ground working apparatus includes a mounting bracket adapted for attachment to an implement frame. A shank is pivotally attached to the mounting bracket about a shank pivot axis and extends downward from the mounting bracket to a lower end thereof adapted for engaging the ground. Right and left disc arms are pivotally attached at upper portions thereof to the mounting bracket such that the disc arms pivot about arm pivot axes independent of the shank.

Abstract: A pressure regulating air valve assembly (100) for a pneumatic tool (90) is disclosed that is movable between an open position and a closed position such that the maximum pressure in the tool is limited to a predetermined value. The valve assembly include a fitting (110) with a central aperture (112) and an upper portion (114). A valve plate (130) is disposed in the fitting, and a collar (140) having an aperture (146) is retained in the fitting. A proximal end of a tubular piston (120) extends through the aperture, and a spring (118) biases the piston toward an open position. When the pressure in the hand tool exceeds a predetermined value, the pneumatic force on a distal annular head (126) of the piston urges the piston toward the valve plate (130), closing the valve. The valve plate may include a centering portion (134) and an elastomeric panel (136).

Abstract: A which mainly comprises a handle having a cylindrical hole and in outer end thereof mounted with a pressure shunt connector; the center of the pressure shunt connector is furnished with a cylindrical hole to be mounted with an extension rod, and one end thereof is screwed in an intake screw hole of the handle; the pressure shunt connector mounted in a cylindrical hole of the handle has a ring-shaped groove, a straight hole and a screw hole, which are formed into an exhaust passage of the pneumatic tool; the pressure shunt connector has two screw holes which are connected with two parallel pressure tubes respectively.

Abstract: Disclosed therein is an electric dipole streamer discharge type lightning conductor, which can gather electric charges in the atmospheric air at one side thereof and generate an electric discharge due to a dielectric breakdown when a potential difference is formed between the electric charges gathered by an electric dipole and the electric charges of the earth so as to emit a great deal of electric charges of the earth toward thunderclouds to thereby induce a thunderbolt.

Abstract: A system and method for connecting supply power to motor control components includes use of a motor control center subunit with moveable supply power contacts. After a motor control center subunit is secured into a motor control center compartment, the supply power contacts may be advanced to engage supply power buses. For disconnection, the supply power contacts may be retracted and isolated from the buses before physical removal of the subunit.

Abstract: Assemblies and methods for mounting a patch panel rack to a cable management pathway are provided. A typical assembly includes a patch panel rack adapted to host a plurality of ports. The patch panel rack is mounted onto two mounting brackets. The mounting brackets are mounted onto a cable management pathway. A cable management pathway is typically a wire raceway or a ladder rack. A waterfall adapted to guide telecommunication cables to desired destinations and also maintain a desired bend radius, is connected to a front face of the patch panel rack. The patch panel rack and the mounting brackets typically define a plurality of apertures adapted to adjustably mount each component respectively. In an exemplary embodiment, the patch panel rack and the mounting brackets define a substantially vertical slot adapted to adjustably mount each component respectively. U bolts are typically used to structurally secure the mounting bracket to the cable management pathway.

Abstract: A separator for a communication cable includes a plurality of barriers formed in a radial direction so that at least two pair units, in each of which at least two insulation-coated wires are spirally twisted, are received in spaces formed by the barriers one by one so as to separate the pair units from each other. At least one of the barriers has a relatively greater thickness than the other barriers. Thus, a communication cable having the separator may prevent PSNEXT (Power Sum Near and Crosstalk) caused by interference between adjacent wires when a high frequency signal is transmitted through the wires.

Abstract: A Flexible Printed Circuit Cable (FPC) (1) for being soldered to a Printed Circuit Board (PCB) (2), comprises a plurality of flat wires (11), a glue layer (12) attached to the wires and a pair of base boards (13) enclosing the flat wires and the glue layer, the base boards each has a removed part to expose both surfaces of a portion of each wire.

Abstract: Propylene-based resin compositions contain an inorganic filler in a high ratio and are excellent in flexibility, mechanical strength, elongation at break, heat resistance, scratch resistance, whitening resistance and flame retardancy. Shaped articles comprise the compositions. A first propylene-based resin composition of the present invention contains 5 to 64.9% by weight of a propylene-based polymer (A) having a melting point, as measured by differential scanning calorimetry (DSC), in the range of 120° C. to 170° C.; 0 to 59.9% by weight of a propylene-based polymer (B) having a melting point, as measured by differential scanning calorimetry (DSC), of less than 120° C. or having no observed melting point; 0.1 to 30% by weight of a graft-modified propylene-based polymer (C) obtained by graft modifying a propylene-based polymer having a melting point, as measured by differential scanning calorimetry (DSC), of less than 120° C.

Abstract: The invention relates to the use of and method of forming Low Temperature Cofired Ceramic (LTCC) circuits for high frequency applications. Furthermore, the invention relates to the novel LTCC thick film compositions and the structure itself.

Abstract: An object of the present invention is to provide a flexible printed wiring board which relaxes stress concentration in the flexible printed wiring board during production steps, thereby preventing wire breakage in inner lead portions and cracking in solder resist which would otherwise be caused during mounting of devices such as IC chips and LSI chips. The flexible printed wiring board of the present invention includes an insulating layer; a wiring pattern formed of a plurality of wirings being juxtaposed, which wiring pattern is formed through patterning a conductor layer stacked on at least one surface of the insulating layer and on which wiring pattern a semiconductor chip is to be mounted; and grid-like dummy patterns formed in a blank area where the wiring pattern is not provided, wherein the dummy patterns are formed in a width direction generally symmetrically with respect to the longitudinal direction of the flexible printed wiring board.

Abstract: A novel electrolytic plating method suitable for filling non-through holes with metal is disclosed. The electrolytic plating method uses a plating solution containing additives such as a surfactant, a brightening agent and a smoothing agent and includes pulse plating for controlling adsorption and desorption of tie additives on the surface and in the non-through holes of substrate and subsequent DC plating for filling up the non-through holes with metal.

Abstract: An electronic component having: a substrate, a lower conductor layer provided on the substrate; an inorganic dielectric film that covers the lower conductor layer; and an upper conductor layer having an upper electrode portion provided on the inorganic dielectric film. The lower conductor layer has a lower electrode portion that together with the upper electrode portion and the inorganic dielectric film constitutes a capacitor, and a coil portion that constitutes an inductor. The entire inorganic dielectric film is formed integrally, and the lower conductor layer is in contact only with the substrate, inorganic dielectric film, and upper conductor layer.

Abstract: The present invention relates generally to a plating buss design and method for minimizing short circuit problems in PCB panel singulation. More particularly, the invention encompasses a serpentine plating buss which increases the PCB singulation process window thereby minimizing short circuit problems due to indexing errors caused by occasional manufacturing and equipment alignment problems. The serpentine plating buss design therefore increases board yield.

Abstract: An exemplary printed circuit board includes at least a pair of differential vias defined therein, each of the differential vias has an annular ring formed on the PCB, a conductive hole defined in the PCB, and a clearance hole defined in at least one inner layer of the PCB. Each of the clearance holes of the differential vias is oval shaped thus providing a greater area for the clearance holes and needed clearance between vias without creating a superposition zone.

Abstract: An electromagnetic interference (EMI) gasket for an electronic module comprises a valley feature formed on one side of an EMI gasket and a crown feature formed on the other side of the EMI gasket in order to complement the valley. One or more EMI gaskets are used to construct a shield across the opening of a module cage or rack. Each gasket forms a link in a series of modules, in order to complete a seal across the opening in the cage. A perpendicular pressure forces the module gaskets to center and align evenly as the crown and valley of the opposite features nest together. The modules can be then pressed together and the overlap of the crown and valley acts to center the alignment and create a pressure for satisfactory EMI grounding and the reduction of EMI leakage.

Abstract: In a protector, a lock mechanism for a stay is provided at a protector body. The lock mechanism includes a stay abutment plate which is perpendicular to a direction of a normal line of the protector body, a boss for passing through a boss passage hole in the stay, and a lock piece portion for locking the stay. With this construction, the amount of retaining engagement of the lock piece portion can be increased without adversely affecting the moldability of a mold. As a result, the force of retaining of the protector can be enhanced, thereby avoiding a situation in which the protector is disengaged from the stay.

Abstract: An electrical connector includes a crimpable tubular body including a receiving portion for receiving a wire conductor via an opening at a longitudinal end of the tubular body. The tubular body provides a permanent electrical connection to the wire conductor only upon at least a portion of the tubular body being crimped. The receiving portion has a tapered shape and inward projections for engaging the wire conductor to provide sufficient frictional force to resist removal of the wire conductor from the receiving portion prior to crimping, without providing a permanent electrical connection between the tubular body and the wire conductor. In one implementation, the electrical connector is a butt connector with two such receiving portions for splicing together two wires. In another implementation, the electrical connector is a ring connector that terminal on the other end with a washer-like disk that can be secured to a terminal.

Abstract: Apparatus and method for monitoring the wear of a downhole tool, and providing indication of the degree of wear to an operator at the well surface. Rotating torque can exhibit a drop when wear of the cutting element matrix progresses to wear pads within the matrix. Other wear indicators can also be built into the cutting element matrix. Progression of wear down to the indicator can be directly measured at the well surface, or relayed to the surface via a downhole communication system.

Abstract: A bore hole reaming apparatus which is characterized by one or more cleaning devices such as bursting heads attached to a pull rod and typically having one or more mandrels attached thereto in tandem for pulling a length of pipe through a pre-bored opening using a pulling apparatus. In a typical embodiment the bore hole reaming apparatus is characterized by a pair of bursting heads mounted in spaced-apart relationship in tandem on the pull rod and fitted with one or more mandrels attached to a third bursting head. The mandrel(s) is typically secured to a fourth bursting head by a cable and the fourth bursting head is attached to a string of typically HDPE pipe to be pulled through the bore hole. The mandrel(s) straighten irregularities and clean, smooth and enlarge the bore hole to facilitate pulling the pipe string through the bore hole with minimum friction on the pipe.

Abstract: A technique facilitates combined drilling and coiled tubing operations from a single bed of a rig. A mast is mounted to the bed, and a coiled tubing injector is connected to the mast. The coiled tubing injector is able to move coiled tubing into and out of a wellbore. A starter head also is mounted to the mast. The starter head is rotatable to make and break connections of tool string components. However, the starter head generally is rotationally stationary during drilling operations.

Abstract: Methods and apparatuses associated with a rotary driven well drilling rig. One method includes providing a rig having: an erectable mast; a head drive unit for rotatably driving drill pipes into a surface; a pumping unit to deliver a fluid through a drill pipe secured to the head drive, the fluid being forced out a bottom end of the drill pipe and up to the surface along the outside of the drill pipe during a borehole drilling operation; and a deck unit pivotally mounted on a turret attached to a set of tracks. This method embodiment includes, while the rig is in a first location, performing a first borehole drilling operation to form a first borehole at a second location; and performing a second borehole drilling operation to form a second borehole at a third location while the rig remains in the first location.

Abstract: An actuator to direct a downhole drilling tool includes a stator and an armature configured to be electromagnetically displaced into one of three stable positions. A cavity within the stator is in communication with a high-pressure fluid and hydraulic ports in the stator allow the high-pressure fluid to communicate with low-pressure regions. Plungers on the armature selectively block either or none of the hydraulic ports, allowing for three control options from the actuator to the downhole drilling tool.

Abstract: A polycrystalline superabrasive composite tool can be produced using high pressure high temperature processes allowing for increased thermal resistance, wear resistance and toughness of abrasive tools, and additionally allowing for increased effective thickness of abrasive tools. A polycrystalline superabrasive compact can include a support substrate and a superabrasive polycrystalline layer having a diffusion bridge embedded therein that includes a carbide former. Additionally, a working layer can be attached adjacent to the superabrasive polycrystalline layer and opposite the support substrate to form a drill bit sandwich segment. The diffusion bridge matrix of the present invention allows for a new welding phase at each interface between the superabrasive polycrystalline layer and support substrate and between the polycrystalline layer and the metal working layer, thus eliminating delamination failure at the interfaces.