Abstract: A seal for a regenerative air preheater. The seal is comprised of two members that each have a plurality of tabs and slots. The tabs and slots interlock so that the tabs on one member are positioned adjacent the slots on the other member. The tabs have a narrow neck section and a wider sealing section. The wider sealing sections overlay and the narrow neck sections are positioned within a recessed region of the notch on the opposite member so as to interlock the two members. The seal is mounted either to the rotor or to the inner wall of the housing so as to extend through the bypass gap between the rotor and the inner wall of the housing. As the tabs are flexible, the tabs may resiliently deform as a result of the tabs making contact with the sealing surface of the heat exchanger. The air preheater further comprises a reinforcing section that stabilizes the tabs when the tabs resiliently deform.

Abstract: A vehicle energy management system relying on the principle of reallocation of existing resources provided by the vehicle manufacture. Engine belt or engine direct driven components are replaced with electrical motors. Since replacement of the main fan unit would involve a prohibitively large fan due to starting currents, the larger component that would have multiple cooling purposes is replaced with smaller single function electrical components. The larger multipurpose heat exchangers such as the vehicle radiator are replaced with smaller single function heat exchangers associated with the smaller electric fans. The energy management system may involve a main vehicle engine crankshaft mounted generator. This simple generator creates high voltage DC electricity that may be converted to household level AC for the operation of customer application equipment.

Abstract: An object of the present invention is to provide a cooler for cooling both sides (top and bottom surfaces) of a semiconductor device, wherein the variation of pressing force on flat cooling tubes holding a semiconductor device is reduced, thereby uniformly dissipating the heat generated by the semiconductor device. When the holding plates press the flat cooling tubes and semiconductor modules by tightening the nut, the dimensional tolerances in the stacking direction are absorbed by the deformable portions in the inlet and outlet headers. A spacer may be employed inside the flat cooling tubes in order to suppress the deformation of the flat cooling tubes along the stacking direction.

Abstract: This invention provides a cooling system comprising a thermosyphon for computer and electronic devices. The thermosyphon comprises an evaporator placed on top of a heat source, such as CPU. Heat from the heat source causes liquid coolant inside the evaporator to evaporate or boil. The resulting vapor enters a condenser and returns to a liquid phase. Cooling fins are attached to the condenser to facilitate heat transfer with the surrounding airflow. The cooling system and computer or electronic device fit within standard computer cases and high density server rack-mountable cases.

Abstract: The present invention relates to a heat exchanger, in which the flow of a heat exchange medium flowing through tubes is selectively controlled, and opened and closed in order to control heat exchange capability according to cooling and heating loads. More specifically, the invention relates to a heat exchanger, in which one distribution hole is constructed for one tube, so that temperature can be minutely controlled with small temperature deviation in each step, and the opening and closing method of the distribution hole is configured in a sliding type that uses a slide valve, so that the shapes of a header and a tank are simplified, and a clamping operation is also improved.

Abstract: A heat dissipation device includes a plurality of fin plates (1) and a pair of heat pipes (30). Each fin plate includes a first plate (10) and a second plate (20). The first plate forms a first fastener (15) at an edge thereof and a pair of cutouts (17) at opposite sides of the fastener. A pair of tabs (152) is formed at opposite sides of the first fastener and parallel to the first plate. The second plate forms a second fastener (25) at an edge thereof. The second fastener includes a pair of double-layer latches (252) received in the cutouts of the first plate and interengaged with the tabs of the first plate. The first fastener is located between the pair of latches. The heat pipes are inserted through the first and second plates between said edges. The first and second plates then abut each other at said edges.

Abstract: A cooling appliance for cooling hot beverages has a base, a heat conducting bar and an electric fan. The heat conducting bar is mounted securely in the base. The electric fan is attached to the base. The heat conducting bar extends into the hot beverages and transmits heat to the base. The electric fan blows air to cool the base. Therefore the cooling appliance can cool the hot beverage in a very short time.

Abstract: A plurality of angle portions 2c of the fins on an upstream side and those on a downstream side of an air flow are provided so as to be substantially symmetrical with each other. Due to this, bending forces are continuously exerted on a thin plate-like fin material in a direction where the bending deformation of the fin material is cancelled, during the fin forming process. Accordingly, when the angle portions 2c are formed it can be prevented in advance that the fin material 11 is deformed in a state where the repeated deformations of the fin material 11 are accumulated in the same direction.

Abstract: An evaporator for an air conditioning apparatus has an upper and a lower tanks and multiple tubes vertically extending and respectively connected to the tanks at upper and lower ends. A fluid passage portion is formed in the lower tank. Multiple drainage recesses are formed in the lower tank at such portions, at which the recesses do not interfere with the fluid passage portion.

Abstract: The ventilator system and method use a heat exchanger to selectively transfer heat between fresh outside air entering and exhaust air leaving an enclosed space whenever energy can be recovered from the exhaust air by doing so. The system uses a microprocessor-based controller which stores one or more profiles indicating the time-varying needs of the enclosed space for heating and cooling. The transfer of heat between the exhaust and fresh air is reduced or eliminated simply by reducing the speed of or stopping the exhaust air handler while the fresh air handler continues to run. Evaporative cooling for the exhaust air can be provided, and an all-plastic plate type heat exchanger preferably is used, together with an air handler at the exhaust outlet of the heat exchanger to pull exhaust air through the heat exchanger.

Abstract: A system for capping the upper opening of a well having an accommodation for a remotely-located control device. More specifically, a well cap system for a water-well having a pipe casing that permits one or more well control apparatus to be located within the well cap. The system is a two-part assembly, comprising a base and hollow cover, both arranged to be supported by the pipe casing. Further, a constant pressure well system utilizing the water-well cap system.

Abstract: A top drive system having a drive motor, a gear system coupled to the drive motor, a drive quill coupled to the gear system, a top drive support system for supporting the drive motor, the gear system, and the drive quill, a lower support apparatus connected to the top drive support system, tubular handling apparatus connected to and below and supported by the lower support apparatus, the tubular handling apparatus including hydraulic-fluid-powered apparatus, provision apparatus connected to the tubular handling apparatus for providing hydraulic fluid to power the hydraulic-fluid-powered apparatus, the provision apparatus including flow line apparatus for providing hydraulic fluid to the hydraulic-fluid-powered apparatus and electrically-operable control apparatus for controlling fluid flow to and from the flow line apparatus, and electrical power generating apparatus connected to the tubular handling apparatus for providing electrical power to the electrically-operable control apparatus.

Abstract: A non-rotational casing hanger and seal assembly running tool for use in oil and gas drilling operations has a mandrel and a tool body that is carried by the mandrel. The tool body supports a plurality of latching segments for releasably connecting the tool body to a seal assembly. A plurality of latching dogs on the tool body releasably connect the tool body to a casing hanger. Axial movement between the tool body and mandrel operates a pressure responsive shuttle piston positioned on the mandrel to urge the seal assembly into sealing position. A ball valve positioned in the mandrel bore is operable between open and closed positions to allow independent operations to be carried out such as cementing the casing hanger in position through the mandrel bore and operating the shuttle piston to then allow overpull to unlatch the tool from the casing hanger for retrieval.

Abstract: An apparatus that is usable with a subterranean well includes a safety valve assembly and a pressure/temperature sensor. The safety valve assembly is controllable to selectively isolate a formation of a well from the surface of the well. The pressure/temperature sensor is located in the safety valve assembly to measure a pressure/temperature near the safety valve assembly.

Abstract: The present invention includes a communications system to measure and transmit date from a zone of interest below a downhole assembly to a remote location. The communications system preferably includes a sensor gauge engaged through a communications port of the downhole assembly upon a communications cable whereby the communications cable and sensor gauge have substantially the same outer profile diameter.

Abstract: Circulating completion and workover fluids used in hydrocarbon recovery are filtered after monitoring for viscosity, which frequently causes plugging of filters. A viscometer generates a signal representative of viscosity in the fluid; the signal is used by a programmable controller to divert viscous fluid from the filter, or to take other action to prevent damage to the filter. The viscometer can be used in various positions in the system.

Abstract: A simple and inexpensive device with no moving arts for removing from a well non-aqueous liquids, such as gasoline or crude oil, that accumulate on top of the water table in the well comprises a buoyant elongated member, such as a plastic tube sealed at both ends, and a hydrophobic sorbtive material preferably attached to the outside of the tube. The buoyant device is lowered into the well where it floats either in the non-aqueous liquids or in the water such that the sorbtive material is in contact with and absorbs the non-aqueous liquids from the surface of the water. The buoyant device is then removed from the well, the spent sorbtive material replaced with fresh sorbtive material and the device again lowered into the well for further removal of non-aqueous liquids.

Abstract: A method for stabilising an unconsolidated zone (18) of a borehole, by forming a region of the borehole having enlarged diameter (22) in the unconsolidated zone; positioning a fluid-filled casing (26) in the borehole the liner having a pipe (28) extending therethrough into a lower portion; pumping cement from the surface inside the pipe so as to exit the liner at the lower portion and flow upwards to fill the annulus (44) formed between the outside of the liner and the borehole in the unconsolidated zone; withdrawing the pipe (28) from the casing while pumping fluid therethrough so as to maintain the liner substantially fluid-filled and to displace cement above the liner in the adjacent region; drilling through the cement and liner in the unconsolidated zone after the cement has set.

Abstract: A method of treating a well consists of introducing into the wellbore a biodegradable fluid system containing a blend of lactic acid ester, such as ethyl lactate, and a fatty acid ester, such as methyl soyate. The fluid system may be further in the form of a microemulsion that is formed by combining a blend with one or more emulsifiers, an alcohol, and water. The fluid system may be used in displacement, well remediation and stimulation as well as additional, alternative applications such as the cleaning of surface and/or downhole equipment.

Abstract: A process for drilling a well or a portion of a well capable of providing a generally constant interior wall diameter (monobore) and does not require installation of any liner or steel casing. The process comprises circulating settable material into the borehole wherein the settable material sets on at least a portion of the interior wall of the borehole to create a liner along the wall of the borehole and removing excess settable material out of the borehole.

Abstract: An apparatus to be disposed within a wellbore includes a production tubing in communication with a pump string and a bypass string at its distal end, wherein the pump string is configured to pump a wellbore fluid to a surface location through the production tubing, wherein the bypass string includes an upper fluid gate, a packer and a lower fluid gate, wherein the upper and the lower fluid gates are configured to selectively allow or disallow fluid communication with a bore of the bypass string, wherein the upper fluid gate is positioned above the packer and the lower fluid gate is positioned below the packer. The apparatus includes a check valve to prevent reverse fluid communication from the production tubing to the pump string.

Abstract: A short radius exit from a window milled in casing is possible using a whipstock with a sloping surface in excess of 3.5° and a window mill whose diameter is reduced to a percentage generally below about 95% of the casing inside diameter in a mono-bore or non-through tubing application. The system provides a greater flexibility in choosing the window location and eliminates having to penetrate adjacent formations as compared to previous techniques using a longer exit radius. The decrease in mill diameter, as compared to previous techniques, limits stresses on the milling equipment to minimize equipment failures during window milling and subsequent drilling of the lateral.

Abstract: A self orienting liner hanger system including a bent sub, an indexing sub in operable communication with the bent sub, a hanger assembly in operable communication with the indexing sub, and a profile connected with the hanger assembly. Yet further disclosed herein is a method for constructing a junction between a primary borehole and a lateral borehole. The method includes installing a window sleeve at the junction, running a liner hanger into the sleeve, cycling an indexing sub of the hanger until a bent sub of the hanger exits the window, and running the hanger into engagement with the sleeve.

Abstract: An apparatus and method for protecting against the problems associated with heave of a floating drilling rig are disclosed. The disclosed invention is a unique inline compensator in which a plurality of cylinders housed within a tubular housing and a plurality of low pressure and high pressure accumulators function together to provide a system for compensating for heave in the event a primary heave compensation system fails or becomes inoperative. The typical inline compensator of the present invention utilizes a plurality of hydraulic cylinders that act in opposite directions and that have different piston areas such that the piston rods of the cylinders are extended or retracted at different pressure levels to account for heave. The typical inline compensator of the present invention is self-contained and compact enough to fit in the limited space available on a floating drilling structure. Further, a pair of inline compensators of the present invention can be utilized with coiled tubing operations.

Abstract: A connection system to be used in conjunction with a perforating gun comprising a top sub formed to receive one end of a gun body of a perforating gun, a circumferential groove disposed on the outer surface of the gun body, and a collet secured to the top sub. The collet has at least one finger that engages the groove. Engaging the groove with the at least one finger of the collect connects the gun body to the top sub. A cover sleeve is included that retains the finger in connective engagement with the groove.

Abstract: The present invention is directed to a split locking ring for wellhead components. In one illustrative embodiment, the device comprises a first internally threaded wellhead component, a second wellhead component, at least a portion of which is positioned within an opening in the first wellhead component, and a rotatable split lock ring comprised of at least two externally threaded sections, wherein at least a portion of the sections of the split lock ring are positioned between the first and second wellhead components and rotated to threadingly couple the sections of the split lock ring to the first wellhead component and thereby secure the second wellhead component to the first wellhead component.

Abstract: The present invention generally provides an insert for a clamping device or gripping apparatus for conducting translational forces and/or torque into a moveable object, such as a tubular, casing, liner, pipe, expandable tubular, tubing, drill pipe. In one aspect, the insert comprises a base material and a plurality of gripping elements forming an object gripping surface. Gripping elements are at least partially embedded in the base material. The gripping elements in one embodiment are curved to correspond to an outer circumference of an object to be gripped. In one embodiment, the gripping elements are inclined relative to a longitudinal axis of the insert. In another aspect, the gripping elements may comprise grains or particles of a hardened or super-hard material. The present invention also provides a method of making the insert and using the insert in a gripping apparatus.

Abstract: An apparatus and method for coupling a tubular member to a preexisting structure. The tubular member is anchored to the preexisting structure and an expansion member is displaced relative to the tubular member to radially expand the tubular member.

Abstract: The system including a well tool having a housing forming a protection fluid chamber in fluid communication with a discharge port, a protection fluid disposed within the protection fluid chamber, and a moveable mechanism in functional connection with the protection fluid chamber in a manner to expel a portion of the protection fluid when the moveable mechanism moves.

Abstract: A packer and actuator therefor configured for use in relatively high hydrostatic pressure environments. In a described embodiment, a packer for use in a subterranean well includes an actuator for setting the packer. The actuator includes multiple pistons circumferentially spaced apart from each other.

Abstract: A fire protection and extinguishing device for a water-conducting domestic appliance. When a malfunction occurs that in the appliance that could potentially result in a fire, the device protects the appliance from further damage, prevents the danger of a fire starting and can extinguish a fire, which has already started. The device includes a fault current circuit breaker, which will disconnect the electric supply to the appliance, when a fault current occurs. The device further includes a gas sensor and a water sprinkler, which will disconnect the electric supply to the appliance and activate the water sprinkler, when a specific amount of control gas occurs in the appliance.

Abstract: A method and a control system for controlling rock drilling. A control unit of a rock drilling apparatus is provided with one or more control modes, each determining the drilling variables to be measured, their threshold values and the operating principles according to which the operating parameters of drilling are controlled to achieve a desired control criterion.

Abstract: The limit structure for the hook of the pneumatic tool, and the area that is preset on the pneumatic tool has a cylinder hook assembly part that can be covered by a loop cover of the hook. A ring groove is placed on the circumferential area of the hook assembly part, and radial through holes are located at two radial spaced locations on the loop cover, so the center line of the through hole can pin through the ring groove. The through fixer goes through the radial through hole and through the corresponding ring groove, and the hook reaches the combination of limit state that is rotatable by locking the middle of these two through fixers in the ring groove. With this structure, it helps the limit structure for the hook of the pneumatic tool to achieve practical effects of simpler production and more convenient assembling.

Abstract: A sponge core barrel is disclosed for use in performing sponge coring and methods of assembling the sponge core barrel, as well as methods of performing sponge coring. The sponge core barrel includes an outer barrel assembly, a core bit secured to a lower end thereof, and an inner barrel assembly disposed therein. The inner barrel assembly may comprise multiple, sponge-lined inner tube sections and may also include a near-bit swivel assembly. The sponge core barrel may include a piston assembly configured to be released by contact with a core sample without imparting high compressive forces to the core. The sponge core barrel may also include a pressure compensation mechanism and, optionally, a thermal compensation mechanism cooperatively configured to maintain the pressure of presaturation fluid. The sponge core barrel may also include a valve assembly enabling the make-up and presaturation of multiple sections of inner tube to form a single, continuous chamber.

Abstract: A drill bit has, on its face, a combination of at least one straight cutting edge and at least two curved cutting edges arranged in a Y-shape. The cutting edges on the face of the drill bit are arranged such that they start from the axis of the drill bit or end directly adjacent thereto. The straight cutting edge is symmetrical with respect to the curved cutting edges, which are curved in opposite directions.

Abstract: A track driven machine has a pair of track frames on opposite sides thereof, and each of the track frames has a pair of laterally extending arms fixed thereto. The arms are joined to a machine frame only through vibration isolating elastomeric blocks that carry compression loads from the arms to the machine frame. The elastomeric blocks are held in place with bolts that pass through openings in the machine frame. There are second elastomeric blocks above each of the first blocks to support downward movement of the arms relative to the machine frame.

Abstract: A hybrid vehicle includes an internal combustion engine coupled to a combined starter/motor/generator which is, in turn, coupled to a transmission of the vehicle. The starter/motor/generator is coupled to a high voltage battery pack via an inverter and to a deployable power output panel for serving loads external to the vehicle. Whenever external loads are to be powered, a control unit automatically places the vehicle in PARK, or alternatively activates an electrical parking brake system to hold the vehicle stationary.

Abstract: A front hood system has a front hood of a vehicle that is coupled to the frame of the vehicle via at least one multiple-joint hinge. In addition, the vehicle's front opening hood can be latched by means of at least one hood lock. At least one multiple-joint hinge has at least one link that can separate into at least two parts due to the force of impact of a pedestrian.

Abstract: A front cover structure for a saddle-type vehicle, in which the cost of replacement in damage and the manufacturing cost can be reduced and a degree of the freedom of design appearance can be enhanced. In the front cover structure for a saddle-type vehicle in which a front cover 27 is provided so that it encloses a headlight 20 in the center of the front of the body, the front cover 27 is divided into a center cover for placement covering a top central front portion of the vehicle body, a left shroud 85L provided for placement on the left side of the center cover, and a right shroud 85R provided for placement on the right side of the center cover. The left shroud 85L and the right shroud 85R are coupled via the headlight 20.

Abstract: An air-based thrust recovery system for use in a powered lift platform utilizing fixed-pitch propellers is provided. The system utilizes an air compressor coupled to the drive motor of the platform and an on-board, high pressure tank for air storage. The fixed-pitch propellers are coupled to the primary drive system with over-running clutches, thus allowing the thrust recovery system to rotate the propellers faster than if driven solely by the primary drive system. Preferably the propellers are surrounded by air ducts. The thrust recovery system uses individually, or in combination, cold air jets mounted at the tips of the propellers, a circulation control system which blows out the leading or trailing edge of the propellers, and one or more perforated tubing segments surrounding at least a portion of the platform's air ducts.

Abstract: A vehicle engine has a system of valves that permits various engine cylinders to operate in different modes of operation. During braking, some of the engine cylinders receive atmospheric air, compress it, and transfer it to an intermediate air-container. Other cylinders receive compressed air from the intermediate air-container, further compress it, and transfer it to a high-pressure air-reservoir for storage. During acceleration, some of the engine cylinders receive compressed air from the high-pressure air-reservoir, expand it to a lower level of pressure, and transfer it to the intermediate air-container. Other cylinders receive air from the intermediate air-container, further expand it, and use it for combustion in an internal-combustion cycle. During short stops, the engine is shut down, for the duration of the stop, and, then, it is restarted with compressed air. During cruise, the engine operates as a conventional internal-combustion engine.

Abstract: A steerable primary axle for a fairway mower or other machine includes a pair of motors mounted in fixed positions on opposing ends of an axle. The mechanical drive system includes a pair of input shafts having input bevel gears, a pair of output shafts with output bevel gears and wheel mounts, and a pair of intermediate shafts between the input shafts and output shafts. Each intermediate shaft has an upper bevel gear meshed with the input bevel gear and a lower bevel gear meshed with the output bevel gear. The output shafts may be enclosed within pivotable housings. A pair of drag links are attached to the pivotable housings and to a steering linkage. The wheels on the wheel mounts may be steered without moving the motors, reducing or minimizing strain on hydraulic hoses or electric cables on the steered wheels.

Abstract: The invention concerns an axle (1) comprising a differential (6), two transmission lines (8) from the differential and adapted each to drive a drive wheel (2), members (4) for directional control of the drive wheels (2), each transmission line (8) including an input shaft (10) connected to the differential (6), an output shaft (12) connected to the corresponding drive wheel (2), a pivot (20) with axis oriented transversely to each of the input (10) and output (12) shafts, and a double torque transmitting joint (30) between the input shaft (10) and the output shaft (12). Said double-joint comprises two elementary joints (30A, 30B) axially connected to each other along a double-joint axis and including each an elementary break center. Each shaft (10, 12) defines a fixed position, along its axis (X-X, Y-Y), of the elementary break center of the corresponding joint (30A, 30B). Additionally, one at least of the two elementary joints (30A, 30B) is a joint freely sliding along the double-joint axis.

Abstract: A pre-impact inflation air bag system for a vehicle having a preselected decreasing distance between the vehicle and an object is disclosed. The system comprises a plurality of nested inflatable air bags. A plurality of inflators are provided for inflating the plurality of nested inflatable air bags, respectively. A collision sensor produces a collision sensor output upon detecting the object with the preselected decreasing distance between the vehicle and the object. A controller receives the collision sensor output for simultaneously inflating each of the plurality of nested inflatable air bags between vehicle and an object. A plurality of pressure relief members are connected to the plurality of nested inflatable air bags for sequentially deflating the plurality of nested inflatable air bags upon sequential impact of the plurality of nested inflatable air bags with the object.

Abstract: An apparatus for controlling the rigidity of vehicle body according to the present invention comprises a controller for controlling a buckling form, which controls the buckling form by adding to a member to be inputted to a collision load a lateral force in the direction substantially perpendicular to the member.

Abstract: In a motor vehicle comprising a vehicle body having a support structure for supporting a main drive unit and at least one support block disposed on the support structure by which the main drive unit is supported in the vehicle body, each support block comprises bottom and top parts which are movable relative to each other and provided with an operating mechanism for causing such movement for lowering the drive unit when the motor vehicle is involved in a collision.

Abstract: A step-down power transfer device for providing a dropped drive line in a front engine and rear drive vehicle. The step-down power transfer device is preferably chain or gear driven. A preferred vehicle a includes a power train having a longitudinally mounted front engine, a step-down power transfer device, a single segment drive shaft, a half-shaft differential, swing axles and geared reduction wheel end drives. The vehicle can have an exceptionally low, i.e., 16 to 18 inches, load floor that is flat at least between the step-down power transfer device and the differential. The resultant vehicle has many parts in common with popular traditional front engine/rear drive trucks. Combining the power train described above with a low profile rear suspension provides added low load floor benefits.

Abstract: A power plant mounting apparatus includes a mount member that enables a side member of a vehicle to support a power plant. The mount member has a supporting member whose one end is fixed to the power plant. The supporting member has a shaft portion at the other end thereof which is disposed within an outer tube. An insulator is provided between the shaft portion and the outer tube. A bracket of a flat plate-shape attached to the outer tube is fastened to an inner side surface of the side member by means of a bolt. A center point of the shaft portion within the outer tube is positioned within the side member.

Abstract: A steer-by-wire steering system has a steering wheel actuator and a braking device that acts on the steering column. The braking device is activated when the vehicle steering wheel is to be blocked or at least sharply braked, such as when the steering stop is reached or a wheel goes over the edge of a curb. The braking device functions like a switchable freewheel.

Abstract: A method of operating a power-assisted hydraulic steering system of a motor vehicle having a hydraulic pump mechanically driven by a vehicle drive assembly, and having an additional function which reduces the amount of power assistance at a high driving speed in comparison to the assistance at a low driving speed and, in the process, simultaneously increases the quantity of hydraulic medium circulated by way of the hydraulic assistance unit of the steering gear is provided. This additional function is activated independently of the driving speed also under operating conditions which may subject the hydraulic pump to extreme stress. For example, the additional function may be activated shortly before reaching the steering end stop, which can be detected by use of an appropriately arranged steering angle sensor. An activation also is possible if steering angles which are larger than a defined limit steering angle are set for a defined time period.