Abstract: An arrangement, for heat dissipation from a component that is to be cooled, features: a pump for pumping a coolant, which pump comprises a pump rotor; a fan that comprises a fan rotor associated with which is an electric motor to drive it, the pump rotor and the fan rotor being separated from one another in fluid-tight fashion and drivingly connected to one another via a magnetic coupling. It also relates to a method for heat dissipation from a component that is to be cooled, using a fan that comprises a fan rotor and a drive motor, using a pump that comprises a pump rotor, using a coolant that is pumpable by means of the pump, comprising the following steps: A) the fan rotor has a rotational motion imparted to it by means of the drive motor; B) the pump rotor has a rotational motion imparted to it, via the magnetic coupling, by means of the rotational motion of the fan rotor; C) the coolant is caused to flow by the rotational motion of the pump.

Abstract: The invention relates to a device for heat exchange between flowable media. Said device comprises a heat exchanger block which is defined, on one side, by an inflow chamber (1) for supplying the liquid medium, and on the other side, by an outflow chamber (3) for evacuating the liquid medium. Said block comprises fluid channels (7) for the liquid medium, extending through the block from the inflow chamber (1) to the outflow chamber (3), and a covering plate (9) which extends from the inflow chamber (1) to the outflow chamber (3) and closes the block at one end. Said covering plate (9) is provided with at least one inner passage (13) which extends from the inflow channel (1) to the outflow channel (3) as a bypass flow channel bypassing the fluid channels (7).

Abstract: The burn-in apparatus includes a water supply system and a sprayer and has a structure such that water is converted into mist and sprayed onto the upper surface of a device attached to a socket of a burn-in board. The amount of heat generated by the device that generates high heat is removed by the amount of heat that includes a large latent heat from when the mist falls on the upper surface and is evaporated. Burn-in of the device is conducted while it is being cooled to the target temperature.

Abstract: A well casing assembly comprises a length of line having two packer/seal assemblies at the upper end thereof and two packer/seal assemblies at the lower end thereof. The lower end packer/seal assemblies are inverted relative to the upper end packer/seal assemblies. By appropriate design of the setting elements of the packer/seal assemblies, each is selected to have a different setting force. Accordingly, when the tool is set by longitudinal compression thereof, the packer/seal assemblies set in a pre-determined sequence. The packer/seal assemblies are preferably of the type in which an annular slip is expanded by means of a swage. Variations in the setting force may be obtained by variations in material characteristics and/or thickness or by variations in the swage ramp angle, or by any other suitable means.

Abstract: A drill string comprises a first drill string member having a male end; and a second drill string member having a female end configured to be joined to the male end of the first drill string member, the male end having a threaded portion including generally square threads, the male end having a non-threaded extension portion coaxial with the threaded portion, and the male end further having a bearing surface, the female end having a female threaded portion having corresponding female threads, the female end having a non-threaded extension portion coaxial with the female threaded portion, and the female end having a bearing surface. Installation methods, including methods of installing instrumented probes are also provided.

Abstract: A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Pretreated produced water is then fed to an evaporator. Up to 95% or more of the pretreated produced water stream is evaporated to produce (1) a distillate having a trace amount of residual solutes therein, and (2) evaporator blowdown containing substantially all solutes from the produced water feed. The distillate may be directly used, or polished to remove the trace residual solutes before being fed to a steam generator. Steam generation in a packaged boiler, such as a water tube boiler having a steam drum and a mud drum with water cooled combustion chamber walls, produces 100% quality high pressure steam for down-hole use.

Abstract: A foldable hay rake has two rake arms comprised of first and second rake arm structures with rake wheels thereon pivotally secured to a base frame to pivot in a vertical plane. A center rake arm structure is pivotally associated with the base frame with a center rake arm frame located adjacent a rearward end of the base frame between the first and second rake arm structures. At least one of the hay rake wheels has a plurality of teeth extending therefrom with a tooth spacing between adjacent teeth of less than five inches and an outer diameter greater than 60 inches. A castor wheel is pivotally attached to the outer end of the main support frame, with an axle dampener operationally associated with the castor wheel to dampen wobbling of the castor wheel.

Abstract: The present invention relates to subterranean treatment fluids. In particular, the present invention relates to subterranean treatment fluid compositions that comprise polyoxazoline compositions and methods for using such compositions in subterranean applications. In one embodiment, the present invention provides a method of controlling shale swelling in a subterranean formation comprising introducing a treatment fluid into the subterranean formation, wherein the treatment fluid comprises a base fluid and a polyoxazoline composition. In another embodiment, the present invention provides a method of treating a portion of a subterranean formation comprising the steps of: introducing a treatment fluid that comprises a base fluid and a polyoxazoline composition; and treating a portion of the subterranean formation. Other embodiments are provided.

Abstract: The present invention relates to methods and compositions for carrier fluids comprising water-absorbent fibers. One embodiment of the present invention provides a method of treating a portion of a subterranean formation, comprising providing a slurry wherein the slurry comprises a servicing fluid, particulates, and a degradable, water-absorbent material wherein the degradable, water-absorbent material acts to help keep the particulates from settling out of the slurry; and, introducing the slurry into the portion of the subterranean formation. Another embodiment of the present invention provides a slurry suitable for use in subterranean operations comprising a servicing fluid, particulates, and a degradable, water-absorbent material wherein the degradable, water-absorbent material acts to help keep the particulates from settling out of the slurry.

Abstract: The present invention provides a downhole cementing apparatus run into a borehole on a tubular. The apparatus is constructed on the pipe in such a way that pressure surge during run-in is reduced by allowing fluid to enter the pipe and utilize the fluid pathway of the cement. In one aspect of the invention, an inner member is provided that filters fluid as it enters the fluid pathway. In another aspect of the invention, various methods are provided within the cementing apparatus to loosen and displace sediment in the borehole prior to cementing.

Abstract: A convertible rotary seal has a housing for receiving a polish rod. A mandrel is rotatably mounted in the seal housing and surrounds the polish rod. A wear sleeve surrounding the mandrel engages a primary seal. A secondary seal engages the mandrel and polish rod and rotates therewith but may be converted for use as a static seal if necessary. A locking mechanism selectively secures the mandrel in a stationary orientation with respect to the seal housing. Fluid that leaks past the primary seal will be detectible through an external orifice. If a leak in the primary seal is detected via the external port, then the mandrel may be secured in a stationary orientation with respect to the housing and the secondary seal may be reconfigured to operate as a stationary seal until such time as the rotary sealing unit can be overhauled.

Abstract: The present invention relates to methods for treating subterranean formations. In one embodiment, the present invention provides a method of fracturing a portion of a subterranean formation that comprises providing a viscosified treatment fluid comprising a single salt aqueous fluid having a density of greater than 9 pounds per gallon and a crosslinked viscosifying agent, and contacting the portion of the subterranean formation with a viscosified treatment fluid so as to create or enhance one or more fractures therein, wherein the viscosified treatment fluid is introduced into a well bore that penetrates the portion of the subterranean formation to be fractured at a surface pressure of less than about 25,000 pounds per square inch. In other embodiments, the present invention provides methods of frac packing a subterranean formation and methods of reducing a surface pressure needed to create one or more fractures in a portion of a subterranean formation.

Abstract: A method and apparatus for producing gas from a hydrate formation includes the use of at least one wellbore which penetrates the hydrate formation and further extends into an aquifer below the hydrate formation. The aquifer provides relatively warm water which may be produced up and into the hydrate formation thereby causing the release of gas from the hydrate. Suitable flow control and monitoring equipment may be included to control the flow of water produced from the aquifer and gas produced from the hydrate formation.

Abstract: In one embodiment, a top drive system for drilling with casing is provided with an access tool to retrieve a downhole tool. The top drive system for drilling with casing comprises a top drive; a top drive adapter for gripping the casing, the top drive adapter operatively coupled to the top drive; and an access tool coupled to the top drive and adapted for accessing a fluid passage of the top drive system. In another embodiment, a method for retrieving a downhole tool through a tubular coupled to a top drive adapter of a top drive system is provided. The method comprises coupling an access tool to the top drive system, the access tool adapted to provide access to a fluid path in the top drive system and inserting a conveying member into the fluid path through the access tool.

Abstract: A system for loading an executable code into volatile memory in a downhole tool string component comprises a surface control unit comprising executable code. An integrated downhole network comprises data transmission elements in communication with the surface control unit and the volatile memory. The executable code, stored in the surface control unit, is not permanently stored in the downhole tool string component. In a preferred embodiment of the present invention, the downhole tool string component comprises boot memory. In another embodiment, the executable code is an operating system executable code. Preferably, the volatile memory comprises random access memory (RAM). A method for loading executable code to volatile memory in a downhole tool string component comprises sending the code from the surface control unit to a processor in the downhole tool string component over the network. A central processing unit writes the executable code in the volatile memory.

Abstract: A tubular sleeve is coupled to and overlaps the threaded connection between a pair of adjacent tubular members.

Abstract: A non-electrically actuated ganged fire extinguisher system for use in an enclosure of a size larger than the capacity of a single pre-engineered fire extinguisher comprises at least two pre-engineered fire extinguishers positioned at spaced locations in the enclosure. An actuation valve is mounted on the outlet of each fire extinguisher. A fluid operated valve actuator for each valve retains the valve in a closed state when the actuator is pressurized and opens the valve when the actuator is depressurized. A vent line connects the valve actuators and provides fluid communication therebetween, such that the actuators are maintained at the same pressure state. At least one non-electrical temperature sensor is mounted in fluid communication with the vent line. The temperature sensor opens an outlet to the vent line and releases the pressure therein when the temperature in the vicinity of the sensor reaches a predetermined value indicative of a fire hazard.

Abstract: A fire extinguisher unit that can be grasped and operated with a single hand. The unit includes a single-hand fire extinguisher and a holder for releasably supporting the fire extinguisher on a vertical surface. The fire extinguisher has a cylindrical canister housing, a flexible internal pouch containing fire suppressant, means for externally pressurizing the pouch, a valve for regulating the flow of fire suppressant from said pouch, and a spray head connected to the valve for actuating the valve between open and closed positions and for directing the flow of fire suppressant from said pouch. The holder has an elongate base, means for mounting the elongate base to a vertical surface, and a clamp fixed to each end of said elongate base.

Abstract: A jet-engine based multiple firefighting system comprising: a platform; a frame pivotally mounted on the platform at a pivot point; a jet engine mounted on the frame; a tailpipe extending from an exhaust end of the jet engine; an outer discharge pipe slideably mounted on the frame and disposed around the tailpipe to define an annular space, the outer discharge pipe having an intake end into which the tailpipe extends; and a liquid injection system mounted on the outer discharge pipe around the tailpipe and configured to inject firefighting liquid into the annular space.

Abstract: The invention relates to a soil working method, in which a soil working device suspended on at least one supporting cable is lowered by a supporting device and introduced into the ground and subsequently the soil working device is raised from the ground by means of the supporting cable and in addition to the supporting device a holding frame is provided and the supporting cable is connected to said holding frame. The invention also relates to a soil working apparatus.

Abstract: It is an object of the present invention to provide an effective technique to alleviate vibration in the electric hammer drill. According to the invention, representative electric hammer drill is provided with a body, a motor, a striker, a cylinder, first and second power transmitting mechanisms, a power switching mechanism, a mode changing mechanism, and a coupling mechanism. The mode changing mechanism is disposed on the upper surface of the body and can change between a hammer-drill mode and a hammer mode. The coupling mechanism is disposed between the mode changing mechanism and the power switching mechanism. The coupling mechanism extends along the peripheral surface of the cylinder and transmits the mode changing movement of the mode changing mechanism to the power switching mechanism by moving in the longitudinal direction of the cylinder.

Abstract: A pneumatic wrench includes a pneumatic motor, a striking portion, and a drive shaft. The striking portion includes a support seat, a first pin, a second pin, a first hammer, and a second hammer. Thus, the locking strip of the first hammer and the locking strip of the second hammer increase the thickness of the first hammer and the second hammer respectively to reinforce the structural strength of the first hammer and the second hammer, thereby preventing the first hammer and the second hammer from being broken due to vibration so as to increase the lifetime of the first hammer and the second hammer.

Abstract: A pressure regulator is disclosed that relates to a belt mounted portable pneumatic pressure regulator where a CO2, compressed tank, or similar pressurized canister can be connected to the pressure regulator and a discharge hose can be connected to the regulator. The discharge hose provides a regulated supply of pneumatic air for an air driven power tool, paint gun, or other piece of equipment that operates from a supply of pressurized air. The regulator may include a pressure gauge, adjusting knob, and a pressure relief or burst valve.

Abstract: A power screwdriver is disclosed having a drive which is coupled via a clutch, disengaging as a function of torque, to a tool drive shaft for driving a tool. The screwdriver comprises an electronic control unit for controlling the drive, and a sensor which is coupled to the electronic control unit in order to switch off the drive when the clutch responds. The electronic control unit is designed for activating the drive with a certain output, preferably with a reduced output, for a limited time after switch-off.

Abstract: The invention relates to an impact device comprising a frame to which a tool is connectible, and between the frame and the tool a stress element (3) supported to the frame of the impact device, and a hydraulic fluid space (6) and means for leading pressurized hydraulic fluid into and out of the hydraulic fluid space (6), respectively. The impact device comprises a rotatingly installed control valve (5) having control channels (5b) for leading the hydraulic fluid intermittently from the hydraulic fluid space (6) to the return channel.

Abstract: A power tool is disclosed which comprises a hosing within which a motor is received for driving a tool. At least one switch is received on said housing and can be operated via an elastic touch surface from outside the housing. The switch is part of a signaling circuit which is coupled to a power circuit for activating the motor when said signaling circuit is activated.

Abstract: A surface mounted support assembly that is alignable with an electrical box installed at any position. A first bracket is adapted to be secured to the support and has a plurality of openings adapted to receive wiring from an electrical box secured to the support. A cover is connected to and disposed over the first bracket the first bracket. A cover ring is connected to the cover and adapted to receive an electrical fixture.

Abstract: A scalable mass interconnect device having a receiver assembly with module mounting members positioned in the receiver frame in a direction parallel to a plane of movement of the engagement cams in the receiver. Modules are mounted in the module mounting members such that the modules are perpendicular to a plane of movement of the engagement cams in the receiver.

Abstract: The present invention relates to a hermetic structure having a flat cable. Liquid rubber is charged into a gap to be sealed, the charged liquid rubber is subjected to a physical action at the normal temperature and under the normal pressure, and the liquid rubber is cured to form a seal. By forming the seal in this manner, the limitation of heat resistance and pressure resistance is moderated, the flexibility of selection of materials for various constituent members is enhanced, and the structure is simplified.

Abstract: An electrical box extension includes a base having a first edge, a second edge, an inner wall, and an outer wall. The inner wall defines an aperture. An annular flange is disposed on the inner wall. The flange has first and second support surfaces. A first receiving section is formed between the first edge and the upper support surface. A second receiving section is formed between the second edge and the second support surface. The extension is reversible for extending the electrical box in either a partially or fully extended position.

Abstract: A plurality of non-electrically conductive wire stackers are emplaced along the length of a non-electrically conductive bar installed between vertical studs, with fingers of the stackers being deflectable away from one another upon the insertion of an electrical wire therebetween, to be thereafter held in place by the fingers resiliently returning to their initial alignments.

Abstract: A fluid-tight, in particular oil-tight, cable duct (10) with a duct body (12), comprises an inner side, exposed to a fluid, an external side separated from the fluid and at least one cable channel, through which at least one electrical line formed by a flex is run from the inner side to the outer side of the duct body. A seal element is arranged in the cable channel with a number of individual channels passing therethrough which corresponds to the number of lines and through which the lines run individually. The lines are each formed from two line sections, connected by an electrically-conducting connector piece with a solid cross-section, whereby the connector piece is housed within the single channel of the sealing element, at least over a part of the length thereof.

Abstract: A lead assembly includes an outer insulative body, a conductor, and at least one electrode electrically coupled with at least one conductor. A flexible portion for example having a bellows portion is disposed along the lead body.

Abstract: [Problem]To provide a coaxial cable which is able to shut off external noises and transmit clear images having no picture disturbance by noises without employing cable compensators over a long distance.

Abstract: An adaptor for use with a telecommunications enclosure includes a body having a port extending therethrough from a first end of the body to a second end of the body. The first end of the body is configured for mounting within an opening of a telecommunications housing along a first axis. The port adjacent the second end of the adaptor is configured to receive a connection device receptacle therein along a second axis different from the first axis. A retention device is positioned adjacent the second end of the body and configured to retain a connection device receptacle within the port.

Abstract: A cable includes a plurality of twisted wire pairs housed inside a jacket. A plurality of protrusions extend away from a circumferential surface of the jacket. The protrusion may extend radially outward from an outer circumferential surface of the jacket, or may extend radially inward from an inner circumferential surface of the jacket toward a center of the cable. The protrusions ensure that the twisted wire pairs of one cable are well-distanced from the twisted wire pairs of another cable when two cables are placed adjacent to one another and improve the dielectric properties of the jacket. The cable can be designed to meet all of telecommunication cabling industry regulations and standards, and demonstrates improved alien crosstalk and attenuation characteristics even at high data bit rates.

Abstract: A method for fabricating a stranded cable particularly for mechanical motion transmission, which cable is composed of multiple strands or wires, helically wound around a common longitudinal axis, including the steps of: a—winding the strands that form the cable in a helical arrangement around a common longitudinal axis, b—flattening and smoothing the exterior profile of the each strand of the cable. Cable produced by that method.

Abstract: A lid of a fuel tank comprises a lid body constructed of a molded plastic and shaped and sized to be put in an opening formed in a wall of the fuel tank. The lid body has a first portion that is exposed to the interior of the fuel tank when the lid is put in the opening of the wall and a second portion that is projected laterally from a major portion of the lid body over a peripheral area of the opening of the wall when the lid is put in the opening of the wall. The lid further comprises a wiring embedded and extending in the lid body. The wiring has a first end exposed to the outside of the lid body from the first portion of the lid body and a second end exposed to the outside of the lid body from the second portion of the lid body.

Abstract: A lid of a fuel tank comprises a lid body constructed of a molded plastic and shaped and sized to be put in an opening formed in a wall of the fuel tank. The lid body has a first portion that is exposed to an outside of the fuel tank when the lid is put in the opening of the wall and a second portion that is exposed to an interior of the fuel tank when the lid is put in the opening of the wall. At least one of the first and second portions has a flat surface for mounting thereon external parts. The lid further comprises a through passage that extends in and through the lid body between the first and second portions. The through passage includes a first passage part terminating at the first portion, a second passage part terminating at the second portion, and a third passage part extending between the first and second passage parts to connect the same. The first and second passage parts are offset in a direction parallel with the flat surface.

Abstract: A first electrically conductive body and a first solid body are located on the same side of a first base member. A second electrically conductive body is located on a second base member at a position opposed to the first electrically conductive body. A second solid body is located on the second base member at a position opposed to the first solid body. Even when a larger urging force is applied on the second base member, the panel unit allows the first and second solid bodies to receive the urging force. The first and second solid bodies serve to hold the urging force. A predetermined space can thus reliably be kept between the first and second electrically conductive bodies. Establishment of electric connection can be prevented between the first and second electrically conductive bodies. The panel unit keeps normally operating.

Abstract: Novel single-layer flexible circuits are provided including a top flexible substrate, a bottom flexible substrate, and a conductive layer disposed therebetween. Signal traces and ground traces can be located in the conductive layer.

Abstract: Disclosed herein is a printed circuit board including embedded capacitors, composed of a polymer condenser laminate including a plurality of polymer condenser layers, each of which has a polymer sheet and a conductor pattern formed on the polymer sheet, and a via hole for interlayer connection therethrough, and a circuit layer formed on either surface or both surfaces of the polymer condenser laminate and having a circuit pattern and a via hole for interlayer connection therethrough. The printed circuit board of the current invention has higher capacitance density per unit area than conventional embedded capacitor printed circuit boards, whereby capacitors having various capacitance values, such as multilayered ceramic capacitors having high capacitance, can be embedded in the printed circuit board, instead of being mounted thereon. Also, a method of manufacturing the printed circuit board including embedded capacitors is provided.

Abstract: The present invention is directed to a power supply apparatus in which a battery and a circuit wiring board or boards are electrically connected by using lead terminals. The lead terminal (3) is adapted so that thickness of a welding portion (3a) is caused to be thinner than the thickness of a conductive portion (3b). Thus, current for welding flows to much degree in a thickness direction so that electric resistance of the welding portion becomes large, and heat based on the electric resistance also becomes large. From this fact, welding nugget (63) can be enlarged. As the result of the fact that large welding nugget is formed, the lead terminals are welded to terminal portions (37a) of the battery (2) with high reliability.

Abstract: A printed circuit board is by formed by laminating an interlaminar insulating layer on a conductor circuit of a substrate, in which the conductor circuit is comprised of an electroless plated film and an electrolytic plated film and a roughened layer is formed on at least a part of the surface of the conductor circuit.

Abstract: An electronic circuit device includes at least two circuit substrates for mounting electronic components and a flexible board for external electrical connection disposed between the circuit substrates. The flexible board is electrically connected to at least the surface of one circuit substrate opposed to another circuit substrate.

Abstract: Provided are connection structures for a microelectronic device and methods for forming the structure. A substrate is included having opposing surfaces and a plurality of holes extending through the surfaces. Also included is a plurality of electrically conductive posts. Each post extends from a base to a tip located within a corresponding hole of the substrate. An additional substrate may be provided such that the base of each post is located on a surface thereof. Additional electrically conductive posts may be provided having tips in corresponding holes of the additional substrate. Optionally, a dielectric material may be placed between the substrate and the posts.

Abstract: The invention relates to a cutting device for sinking a cut hole in the ground, having a support on which are mounted in rotary manner about in each case one cutting wheel rotation axis at least two cutting wheels, at least one cutting wheel drive mechanism for the rotary driving of the cutting wheels on the support and a drive mechanism for the rotary driving of the support together with the cutting wheels about a support rotation axis directed roughly parallel to the sinking direction. The invention also relates to a method for producing a cut hole in the ground.

Abstract: A flexible lateral drilling shaft is disclosed, having a concentrically nested arrangement of two or more coil springs of which the winding direction of at least one of the springs is opposite to another of the springs. The shaft is included within a lateral drilling tool which includes a deflection assembly having roller bearings to assist the deflection of the flexible shaft. Once inserted into a wellbore, increasing pressure applied to the shaft will cause the opposing springs to stiffen against each other, providing sufficient strength to support the drilling of a lateral drainhole within the wellbore. Further, the spring is wound from a steel wire having a specific noncircular profile to improve the strength characteristics of the shaft without increasing the bending stress during deflection.

Abstract: A drill bit and seal assembly therefor include a seal gland, an elastomeric sealing seal disposed in the seal gland and having a dynamic sealing surface and a static sealing surface, and at least one auxiliary elastomeric annular seal member disposed between the static sealing surface of the sealing seal and the seal gland. The auxiliary annular seal member serves to prevent relative movement of the sealing seal relative to the surfaces of the seal gland and to permit sealing seals of various cross-sections and shapes to adapt to and function with a conventionally sized and shaped gland. The auxiliary annular seal member is sized and configured and its material properties selected so as to impart the appropriate squeeze to the sealing seal to provide the desired contact pressure and footprint. Choice of the appropriate auxiliary seal member may permit the same sized seal to be employed in seal glands of differing sizes.

Abstract: A roller cone drill bit may include optimally designed bearing structures and cutting structures. The roller cone drill bit may include three cone assemblies rotatably mounted on respective spindles via respective bearing structures. Each cone assembly may have a respective cutting structure with a minimal moment center located along each respective axis of rotation. Each respective bearing structure has a center point located proximate each respective minimal moment center.