Abstract: A heat exchanger having light weight and an excellent recycling property and capable of exhibiting high sealing property of an air flow passage without using an adhesive agent. This heat exchanger is configured by alternately laminating heat transfer plates A and heat transfer plates B which are respectively integrated by vacuum molding a polystyrene sheet into heat transfer surface, air flow passage rib, air flow passage end surface, groove A, protrusion, outer peripheral rib A, outer peripheral rib B, air flow passage end surface cover, and a groove B.

Abstract: A system for producing gas and water from a gas bearing strata during and after drilling completion. The system includes a directional drilling system, a main bore and pump. The directional drilling system includes a drill and a drill string. The main bore intersects the gas bearing strata and has an upper vertical portion, a lower horizontal portion and a curve portion connecting the vertical portion and the horizontal portion. Waste material collects temporarily until pumped to the surface by the pump installed in the bore.

Abstract: A pumping system (13) for oil wells (1) comprises a pump (20) immersed at the bottom of the well (4) and a flow-meter (32) associated with the pump (20), the immersed pump (20) being supplied by an electric supply source (26). The flow-meter (32) is an electromagnetic flow-meter, also electrically supplied by the supply source (26) of the pump.

Abstract: A down-hole tool guide is disclosed for deflecting various down-hole tools having a tendency to hang or bind in uncased bore holes. The down-hole tool guide or ball guide assembly, being adaptive to the down-hole tools, extends forwardly there from and includes an eccentric rotatable ball and high-pressure jets. In cases where the guide is used to guide casing, the ball guide assembly is constructed from a drillable material thereby allowing the hole bore to be extended beyond the last set casing depth without side deviation from the original bore.

Abstract: A wellbore screen includes a base pipe including a wall, an inner bore surface and an outer surface, an opening formed through the base pipe wall and a filter cartridge mounted in the opening. In one aspect, the wellbore screen includes an impermeable layer relative to the opening and the impermeable layer may be selected to be substantially impermeable when in a closed position in the opening to passage of fluids through the opening and, the impermeable layer is at least one of (i) selectively openable to permit fluid flow through the opening and (ii) selectively closeable when triggered to close the opening. In another aspect, the opening may include a tapering diameter from one end to the other and the filter cartridge may include an outer diameter formed to reversibly and substantially correspondingly taper relative to the opening to permit a taper lock fit in the opening.

Abstract: A method and apparatus store energy in an energy storage medium located in an energy storage chamber. As a sampling tool descends into the borehole, the energy storage medium is pressurized with hydrostatic pressure. A sample is collected in a sample chamber by pumping formation fluid into the sample chamber against hydrostatic pressure. The energy storage medium applies the energy stored in the energy storage medium to the sample through a pressure communication member. A pressure multiplier member increases the pressure applied on the sample by the energy storage medium through the pressure communication member to keep pressure on the sample. A biasing water pressure is applied to the sample at the surface so that the energy storage chamber can be removed from the sample chamber.

Abstract: An apparatus (200) and method for repairing an opening (130) in a wellbore casing (110). The apparatus (200) and method couple a floating tubular (250) member in opposing relation to the opening (130) in the wellbore casing (110).

Abstract: An energy storage device for powering a downhole tool may be heated to an effective temperature to improve the operability of the energy storage device. The energy storage device may comprise, for example, a primary battery, a secondary battery, a fuel cell, a capacitor, or combinations thereof. The effective temperature to which the energy storage device is heated may be greater than an ambient temperature in the wellbore near the energy storage device. The energy storage device may be heated using various heat sources such as an ohmic resistive heater, a heat pump, an exothermic reaction, a power generator, a heat transfer medium, the energy storage device itself, a downhole tool, or combinations thereof. A thermal conductor may extend between the heat source and the energy storage device. Further, a thermal insulator may at least partially surround the heat source and the energy storage device.

Abstract: Methods of increasing the permeability of a portion of a subterranean formation may comprise providing a remediation fluid capable of decreasing the tackiness of a tackifying agent, the remediation fluid comprising a surfactant; introducing the remediation fluid into the portion of the subterranean formation, wherein a plurality of tackified particulates at least partially coated with formation fines are located within the portion; and allowing at least a substantial portion of the formation fines to detach from the plurality of tackified particulates.

Abstract: A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

Abstract: An onboard fire suppression system has a distribution network including porous, pressure-responsive nozzles which deliver fire suppression agent in a uniform pattern, without the need for drilling or other machining of nozzle orifices.

Abstract: An electric power tool includes a percussion mechanism (15) located in an external housing (12) of the power tool (11) and driven by a driving motor (13) connected with the percussion mechanism (15) by a gear unit (14). An arrangement for cooling the power tool (11) includes a fan element (19) located in the external housing for generating a cooling air flow (26), a cooling air channel (18) extending along a longitudinal extent of the percussion mechanism (15) and a cross-section of which has a constriction (21; 51), a fresh air channel (31; 61) having an intake opening (32; 62) for communicating with atmosphere and formed in the external housing (12; 42) and a connection opening (33; 63) for communicating with the cooling air channel (18; 48) and arranged in an area of the constriction (21: 51) of the cooling air channel (18; 48).

Abstract: A method for pressure- and flow-prevetive fixing of well pipes, preferably liners and casings (14, 54, 60, 66) in a well when drilling the well, wherein the method also may be used in a completed well in order to place a pressure- and flow-preventive barrier in an annulus (16) surrounded by at least one leaking well pipe. The method comprises the use of granular particles of unconsolidated matter which, by means of their particle sorting, are arranged with a suitably small permeability, and wherein the particles of unconsolidated matter thereafter are mixed with water and potential other additives to become a fluidised mixture of unconsolidated matter (22) subsequently being placed, preferably by pumping, as a pressure- and flow-preventive barrier of unconsolidated matter (38, 56, 62, 68) in the pertinent annulus (16).

Abstract: A bit selection method will generate and record or display a sequence of drill bits chosen from among a plurality of bit candidates adapted for drilling an Earth formation in response to input data representing Earth formation characteristics of the formation to be drilled by: comparing the input data representing the characteristics of the formation to be drilled with a set of historical data including a plurality of sets of Earth formation characteristics and a corresponding plurality of sequences of drill bits to be used in connection with the sets of Earth formation characteristics, and locating a substantial match between the characteristics of the formation to be drilled associated with the input data and at least one of the plurality of sets of Earth formation characteristics associated with the set of historical data; when the substantial match is found, generating one of the plurality of sequences of drill bits in response thereto; and recording or displaying the one of the plurality of sequences of

Abstract: A drill bit for drilling a well bore using solid material impactors comprising a nozzle and a cavity for accelerating the velocity of the solid material impactors and directing flow of the solid material impactors through the nozzle. The drill bit may also comprise a junk slot for return flow of the drilling fluid and solid material impactors.

Abstract: An insert for a rock bit that includes tungsten carbide particles, and a cobalt binder disposed around the particles, wherein a grain size of the tungsten carbide particles and a content of the cobalt binder are selected to provide a fracture toughness of at least about 18 ksi (in)0.5, a wear number of at least about 2, and a hardness of 85 to 87 Ra is disclosed.

Abstract: An auger planter for forming small holes in the earth for the planting of flower bulbs, plant seedlings and plants, and for the insertion of termite monitors and baits. The auger includes a central shaft and a single helical flighting having its leading edge configured to have a sickle blade shape with a cutting edge. The opposite end of the flighting has a portion which is directed in an essentially vertical orientation proximating an alignment parallelling the axis of shaft.

Abstract: In one aspect of the invention a drill bit assembly has a body portion intermediate a shank portion and a working portion. The working portion has a recess with a side wall which is substantially coaxial with the shank portion. At least one cutting element is attached to the side wall and an indenting member is disposed within the closed end. In another aspect of the invention a method includes providing a drill bit assembly with a recess formed in a working portion of the assembly. The working portion has a plurality of cutting elements and the recess has at least one cutting element. The method further has steps of cutting a formation with the plurality of cutting elements and also of penetrating a conical profile of the formation which is formed by the recess.

Abstract: A rotary hammerdrill bit for use with a percussion drilling device or a hammer drilling device, with a shank and a drill head attached to or configured on the shank, wherein a front side pointing in the advance direction of the drill head has a main cutting plate forming a main cutting axis. The main cutting plate extends over the diameter of the drill head and has a tip or tip-edge lying in the longitudinal axis of the drill bit and forms drill blades that are substantially roof-shaped and are inclined radially from the tip or tip-edge. The front side of the drill head has at least one pair of cutting pins, wherein the cutting pins are arranged on the drill head in essentially the same radial positions.

Abstract: An omni direction vehicle (ODV) with a frame having a round surface about its perimeter rotatably coupled to a trailer mule hitch assembly having an axle, wheels and a fifth wheel plate located generally above the axle. Two independent drive wheels located on an axis through the center of the ODV frame are mounted at the same distance from a central vertical axis through the frame. Each wheel is powered independently of the other and can rotate at variable speeds in either direction. The ODV is capable of movement in any direction by rotating the axis of the drive wheels to a position which is perpendicular to the desired direction of travel. The ODV can spin about its vertical axis such that the axis of the drive wheels can be oriented at any direction without changing the original footprint of the space that the frame occupies over the ground. Thus, the combined ODV/trailer mule hitch assembly can rotate about the center of the fifth wheel plate.

Abstract: The present invention relates to a device for continuously regulating the erection of a tandem axle of a vehicle or a self-moving working machine having a vehicle frame and at least one drive axle, wherein a tandem drive axle with a movable tandem axle housing is respectively disposed at the ends of the drive axle, and the torque introduced by the drive axle is mechanically distributed to the wheels disposed in the tandem axle housing through the drive tandem axle.

Abstract: A stabilized electric distribution system for use in a vehicle having electric assist. The system electrically couples an electric assist bus to an accessory load bus while protecting the first electrical bus from electric assist and regenerative braking induced voltage variations. An energy management controller selectively controls each of a electric motor/generator, a DC/DC converter, and an alternator to affect electric energy distribution within the system. Preferably, the electric energy distribution is controlled to maintain the first electrical bus voltage within a predefined voltage range.

Abstract: A battery replacement system for an industrial truck has an electrical propulsion drive and at least one battery compartment for holding a battery block. The battery block can be moved essentially in a horizontal direction into the battery compartment or out of the battery compartment. An external holding apparatus independent of the industrial truck is provided for the battery block. The industrial truck can be maneuvered over the holding apparatus such that the holding apparatus is positioned beneath the battery compartment. The battery block located within the battery compartment can be lifted slightly by the holding apparatus. The force required to lift the battery block can be produced by the electrical propulsion drive.

Abstract: Front and rear wheels Tf, Tr of a motor vehicle driven by an engine 10 are connected through a differential control device 15 which is capable of varying the torque to transmit. When the turning radius of a predetermined one wheel or the motor vehicle is equal to or smaller than a predetermined turning radius, the transmission torque of the differential control device is decreased by a control device to prevent the tight-corner braking phenomenon from occurring. When the motor vehicle is stopped momentarily with the transmission torque being lowered, the control device maintains the transmission torque as it is, and the vehicle is then restarted with the transmission torque being lowered. Thus, when the motor vehicle which was stopped momentarily with a large steering angle is then restarted, the tight-corner braking phenomenon can be prevented from occurring from the beginning of the restarting.

Abstract: There is provided a vehicle frame structure for a motorcycle having an appealing appearance, which structure can be assembled lightweight and compact in size and at a reduced cost. The vehicle frame structure includes a head block (2) including a head tube (3), a main frame (11) forked leftwards and rightwards from the head block (2) to form a pair of main frame half portions (11a, 11b) extending rearwardly thereof, and swing arm brackets (8) extending downwardly from rear ends of the main frame half portions (11a, 11b). An inner frame portion (21) of the main frame (11) and the swing arm brackets (8) in their entirety or respective inner portions of the swing arm brackets (8) are integrally formed by an inner member (19) prepared from a metal casting, and at least an outer frame portion of the main frame (11) is formed by an outer member (20) prepared from a sheet metal.

Abstract: A drive axle assembly includes a pair of axleshafts connected to a pair of wheels, and a drive mechanism for selectively coupling a driven input shaft to one or both of the axleshafts. The drive mechanism includes first and second drive units that can be selectively engaged to control the magnitude of the drive torque transferred and the relative rotary speed between the input shaft and the axleshafts. Each drive unit includes a planetary gearset disposed between the input shaft and its corresponding axleshaft, and a pair of mode clutches that may be activated to cause the planetary gearset to establish different speed ratio drive connections between the input shaft and the axleshaft. A control system including an electronic control unit (ECU) and sensors are provided to control actuation of the clutches so as to control the side-to-side traction characteristics of the drive axle assembly.

Abstract: A seat belt system includes webbing having a solid material that is configured to effect a shape or dimensional change in response to an activation signal. In a preferred embodiment, the webbing includes a first part and a second part, each having a wide end and a narrow end. The webbing is mounted with respect to a vehicle seatback so that the webbing is positionable across an occupant between the occupant's neck and the occupant's pelvis, and is characterized by the absence of an over-the-shoulder portion.

Abstract: A seat belt apparatus includes a buckle configured to be attached to a seat frame of a vehicle seat, a seat belt including a first portion configured to be secured to a vehicle body by an anchor and a second portion having a tongue configured to engage the buckle, a first connector connecting the first and second portions of the seat belt, and a second connector disposed on the seat frame. The first and second connectors are configured to engage.

Abstract: A device for warning occupants in a vehicle is proposed which is connectible to a passenger-compartment sensory system and which has a warning device for an occupant, the warning device being activated as a function of signals from the passenger-compartment sensory system. As a warning device, a display, and/or a loudspeaker, and/or haptic means can be used. The vehicle occupant is warned, in particular, if he/she is in the so-called out-of-position situation. In the process, it is checked whether the occupant has been in the out-of-position situation, without interruption, for a predefined time period. Only then does a warning also follow.

Abstract: An air bag safety system for motor vehicles comprising at least one bumper designed to house a plurality of airbags within blow away compartments that allow for the individual air bags to be deployed. Further comprising said invention are a plurality of pressure sensors as actuating means for discharging the gas cartridges, which are further coupled to the air bags of said invention.

Abstract: A two or more person RUV (recreational utility vehicle) is provided with a multi-place multi-planar saddle seat assembly, multi-place multi-planar foot board assemblies, and grip handles.

Abstract: A vehicle steering system includes a steering input device, a front steering subsystem, a rear steering subsystem, a first force transmission route, a steering control mechanism, a second force transmission route, and a third force transmission route. The front steering subsystem is coupled to front motive members to steer the front motive members based upon movement of a front steering subsystem input shaft. The rear steering subsystem is coupled to rear motive members to steer the rear motive members based upon movement of a rear steering subsystem input shaft. The first force transmission route extends from the steering input device to the front steering subsystem input shaft, wherein force is transmitted from the input device to the front steering subsystem input shaft to steer the front motive members. The steering control mechanism has a movable input member and a movable output member.

Abstract: An electromagnetic holding brake comprising a switchable electromagnet (4) for holding a movable sheet (6) in a predetermined position, wherein said brake further comprises a second fixated sheet (5) which is arranged substantially parallel to the movable sheet (6), such that said movable sheet (6) is clamped between the electromagnet (4) and the second sheet (5) when the current is switched on.

Abstract: A silencer or sound attenuator for gas flows that makes use of noise baffles is provided with a lateral movement mechanism which allows the baffles to be moved perpendicular to the direction of the gas flow within the silencer. A silencer provided with the lateral movement mechanism allows personnel to have access to the interior of the silencer so that the baffles can be cleaned without having to remove the baffles from the silencer. The lateral movement mechanism may include a roller assembly installed at the top of each baffle which operates within a corresponding track that is provided to the inner upper surface of the housing. The lateral movement mechanism may also include a caster assembly, which is provided to the bottom of each baffle to aid in lateral movement.

Abstract: A scaffold bracket apparatus removably attaches to a screen enclosure framework. A pair of scaffold brackets are attached to an aluminum frame for a screen enclosure for supporting a plurality of planks thereacross to support a person thereon. The scaffold bracket has a plank supporting arm having a pair of brace members which grip each side of a generally perpendicular frame member for attaching the plank supporting arm to the generally vertically extending frame member. A locking spline is removably attached to one of the brace members for engaging a groove in the vertically extending frame member to lock the scaffold bracket against slipping sideways.

Abstract: A perimeter net system with the capability of rotating between an open and a close position is described. The perimeter net system includes a support arm, a lock arm, a support arm storage lock, a support cable, a pivot bracket, and a net. These components work together to allow a safety net system to easily be folded against a building for repairs or in inclement weather conditions. The support arm rotates to a closed position on the pivot bracket, and the lock arm adjusts with the support arm. Once in the closed position, the support arm storage lock secures the support arm and the lock arm in place.

Abstract: A multilevel access platform comprising a plurality of stackable modules. Each module includes elongated column members that are generally parallel and coextensive, and a plurality of levels of elongated lateral members that extend transversely between and are connected to the column members. Each level of the lateral members is located at vertically spaced positions relative to the column members and each of the lateral members border a side of the module. At least one platform section is provided for each level and is supported by one level of the lateral members. The stackable modules include a staircase that extends between each level of the lateral members. The multilevel access platform includes a base assembly provided to stabilize and independently secure the multilevel platform. A method for erecting the multilevel access platform includes the step of stacking each module to meet a desired height of a building construction.

Abstract: A tree stand includes a platform having a tree engaging end; a pair of hollow support arms pivotally connected to the sides of the platform; a belt having ends slidable in the support arms for forming a loop around a tree trunk to connect the platform to the tree; latches on the arms for locking the ends of the belt in position; and a bungee cord or spring connecting one end of the belt to the platform or support arms, whereby when one latch is released the belt is pulled into one arm to shorten the loop around the tree.

Abstract: A skirt for use on an applicator bar, wherein the applicator bar includes a body and a flow passageway having an exit end defined in the body, and wherein a second section of the skirt defining a lip is adapted to coact with the body so that the second section is positioned adjacent the exit end of the body.

Abstract: The invention provides an elevator having a car movable along guide rails mounted in a shaft. The elevator comprises an inspection control station mounted on top of the car and accessible via a movable control station cover, blocking means for selectively preventing movement of the car into a safety space within the shaft and actuation means for actuating the blocking means. The actuation means is configured for concurrent movement with the control station cover. Accordingly, a temporary safety space is automatically created within the shaft as the maintenance technician opens the control station cover to move the car using the inspection control station.

Abstract: The present invention relates to a method for controlling the elevators of an elevator group in a building divided into zones comprising different floors in such manner that, at the passenger's departure floor, the elevators are given calls to floors beyond the zone limits of the departure zone. According to the invention, the aforesaid call is divided into two or more calls.

Abstract: A guide device guides a load carrier of an elevator installation along a guide surface and comprises a guide element contacting the guide surface and connected by a connecting element with the load carrier such that the guide element is movable relative to the load carrier in a first and/or a second positional range. The connecting element comprises first and second resilient elements in a serial arrangement, wherein movement of the guide element in the first range deforms both resilient elements and movement of the guide element in the second range exclusively deforms the second resilient element. The overall stiffness of the connecting element is a function of the respective position of the guide element. Stiffness of the second resilient element increases during compression in the second range, wherein the overall stiffness is substantially constant at a transition between the first and the second ranges.

Abstract: A power tool includes a braking system that minimizes a stopping time for a cutting blade of the power tool. The braking system includes a roller bearing clutch mechanism combined with a positive stop pin. The stop pin is provided at an end portion of a cable assembly. The cable assembly is coupled to a trigger through a lever on one end, with the stop pin and a return spring inserted into a gear box on the other end. When the trigger is in a released position, the stop pin fully engages into a positive stop on a bearing cage at a top portion of the drive assembly. The coiled return spring keeps the stop pin in position. When the trigger is pulled, the cable pulls the stop pin out of the positive stop.

Abstract: An electronically controlled disc brake with self-servo effect comprises a ramp plate provided with a brake pad for engagement with a brake disc, an actuator for applying a control force on the ramp plate substantially transverse to the brake disc, a ramp bridge, and rollers movable in ramps in surfaces facing each other of the ramp plate and the ramp bridge. The arrangement of these members is such that a movement of the ramp plate in the tangential direction of the brake disc will cause it to move towards or away from the brake disc.

Abstract: An automatic shoe clearance adjustment apparatus having a ratchet wheel 124b and a driving member 127 comprising a pawl section 127f making a ratchet engagement with the ratchet wheel 124b and an arcuate leaf spring section 127e developing a resilient force for adjusting the automatic shoe clearance adjustment apparatus. The leaf spring section 127e is made of bi-metal. When the temperature of the leaf spring section 127e exceeds the predetermined degree, the arcuate leaf spring section 127e thermo-deflects so as to weaken the resilient force, thereby the automatic shoe clearance adjusting operation is suspended.

Abstract: A brake (10) which is adapted to be rotationally coupled with an output shaft includes a housing (11). An inner shaft (33) is adapted to be attached to the output shaft for rotation therewith. A disc assembly (64) includes a plurality of stationary discs (63) carried by the housing (11) and a plurality of rotating discs (62) carried by the inner shaft (33). The rotatable discs (62) are positioned to be engaged by the stationary discs (63). A least one spring (26) biases the stationary discs (63) to engage the rotatable discs (62). A piston (53) is movable to oppose the force of the spring (26). A spacing assembly (80) is positioned on the inner shaft (33) and rotatable therewith. The spacing assembly (80) includes a plurality of o-rings (83) to separate the rotating discs (62) a predetermined axial distance from an adjacent rotating disc (62).

Abstract: A brake drum includes a ring-shaped drum body, and a friction member secured to the inner circumferential surface of the drum body. Because the drum body is formed of a lightweight Al alloy and the friction member is formed of an Al-base composite material, the brake drum can be reduced in weight as a whole. Further, because the friction member, having projection portions formed on its outer periphery, is cast enveloped by molten metal of the Al alloy, the friction member and the drum body can be firmly fastened together. Thus, even when a great braking force is applied to the drum brake, the friction member can be prevented from being undesirably detached from the drum body.

Abstract: A disc brake comprising a caliper, one or more brake discs and one or more brake pads. The brake pads are received on back plates or other pad support. The caliper and the pad supports are designed to take up resulting re-action forces during braking in a plane perpendicular to a contact surface between the caliper and each pad support.

Abstract: A rotary damper having an oil chamber within a housing which is divided into two by a vane, and generates a damping force by passing operating oil between the two oil chambers when the vane oscillates, has a shaft supporting the vane to allow oscillation in relation to the housing, fixed to a base part of the vane, and seal washers for dividing in a fluid-tight manner between a bearing rotatably supporting the shaft on the housing shaft, and the oil chamber, is provided on the base part of the vane.

Abstract: In an automatic transmission having multiple oil pressure control valves for controlling friction engagement elements, a first and second pressure modulating valves are provided between an oil pressure generating means (pump) and the oil pressure control valves. A switching valve is further provided between the pressure modulating valves and the oil pressure control valves. In case that one of the pressure modulating valves becomes out of order, the oil pressure of a working oil is supplied to the oil pressure control valves from the other pressure modulating valve, so that the automatic transmission can be continuously operated even in the case that one of the pressure modulating valves becomes out of order.