Abstract: A compressor for compressing a gas comprises an impeller wheel (1) mounted within a housing (2) defining an inlet and an outlet (6). The inlet comprises an outer tubular wall (7) extending away from the impeller wheel in an upstream direction and forming a gas intake portion (8) of the inlet, and an inner tubular wall (9) of diameter D extending away from the impeller wheel in an upstream direction within the outer tubular wall (7) and defining an inducer portion (10) of the inlet. An annular gas flow passage (11) is defined between the inner and outer tubular walls (9, 7) and has an upstream end and a downstream end separated by a length L1 measured along its axis. The upstream end of the annular passage (11) communicates with the intake or inducer portions of the inlet through at least one upstream aperture and at least one downstream aperture (13) communicates between a downstream portion of the annular flow passage (11) and the impeller.

Abstract: A fluid flow actuated drive means 10 includes a rotatably mounted impeller 12 which defines a set of circumferentially spaced outer chambers 14 which extend inwardly from openings 16 along a peripheral edge 18 of the impeller 12 and a set of inner chambers 20 which are arranged radially inwards the outer chambers 14, each outer chamber 14 being connected to a corresponding inner chamber 20 via a passage 22 to facilitate the forming of a Venturi between corresponding inner and outer chambers 20 and 14 respectively.

Abstract: A vane assembly for a gas turbine engine is disclosed having lower thermally induced stresses resulting in improved component durability. The stresses in the vane assembly airfoils are lowered by increasing the flexibility of the vane platform and reducing their resistance to thermal deflection. This is accomplished by placing an opening along the vane assembly rail that reduces the effective stiffness of the platform, thereby lowering the operating stresses in the airfoils of the vane assembly. A removable seal is then placed in the opening in order to prevent undesired leakages, while maintaining the benefit of the increased platform flexibility.

Abstract: A compliant seal assembly for a rotating machine is provided. The seal assembly includes a static member, a movable member and a biasing member. The static member is rigidly fixed to the machine at its fore and aft ends. The movable portion has a first sealing surface configured to seal against a rotating member and a rear surface, which may be exposed to a fluid pressure to urge the first sealing surface toward a sealing position with the rotating member. The static and the movable members further include sealing surfaces at their fore, aft and end faces to seal against leakage of gas between the static and the movable members. The biasing member is configured to support the movable member on the static member and to urge the movable member away from the sealing position so as to reduce force on the rotating member during contact of the rotating member with the first sealing surface of the movable member.

Abstract: An integrated duct and baffle arrangement employing a hairpin transition area such that the construction is adapted to flex under thermal conditions.

Abstract: In the blade structure in a gas turbine, front-edge including angles are made large. As a result, a curve of a relative relationship between incidence angles ic1 and is1 and pressure loss becomes mild. Entrance metal angles are made small. As a result, it becomes possible to make the incidence angles small. Chord length of a tip portion of a moving blade is made large. As a result, it becomes possible to make small the deceleration on a rear surface of the tip portion of the moving blade. Accordingly, it becomes possible to make the pressure loss small, and therefore, it becomes possible to improve the turbine efficiency.

Abstract: An interturbine duct for channelling combustion gases between two axial turbine stages. The interturbine duct is made of sheet material to provide a relatively lightweight construction.

Abstract: Pitch control of a variable pitch fan is obtained using pulsed pressure. Pitch is varied incrementally either towards or away from full pitch by pulsed application of fluid to a piston used to drive the blades of the fan into or away from full pitch. Reverse pitch is used to clear debris from the fan. Valves control flow of fluid to the piston. The valve operation is controlled by a controller.

Abstract: A rotor hub fairing system includes an upper hub fairing, a lower hub fairing and a shaft fairing therebetween. The rotor hub fairing system is sized and configured to reduce the overall drag on a dual, counter-rotating, coaxial rotor system. Preferably, the rotor hub fairing is fully integrated. The shaft fairing preferably includes a minimal thickness at the midsection to reduce drag with an increasing thickness adjacent the upper and lower hub fairings to reduce the flow separation on the hub fairing surfaces without overly excessive drag. Other aerodynamic structures, such as a horizontal splitter and/or a plurality of turning vanes may be mounted to the shaft fairing to facilitate flow around the upper and lower hub fairings to reduce flow separation and drag.

Abstract: A rotor stage (13, 14, 15, 17, 18, 19) of a gas turbine engine (10) comprises an annular retaining plate (38) capable of preventing axial movement of blades (30). The retaining plate (38) is secured to the disc (32) via a bayonet arrangement (49). A locking assembly (48) is provided to prevent relative rotation between the disc (32) and the retaining plate (38). The locking assembly (48) comprises a locking plug (50) configured in a generally Y-shaped cross section having a channel portion defined by arms (56), which engage upstream and downstream of the retaining plate (38) and a leg part (58) configured to span between bayonet parts (40 and 42), thereby preventing relative rotation between the disc (32) and the retaining plate (38). The assembly (48) further comprises a securing plate (52) configured to span between circumferentially adjacent castellations (40) thereby preventing the locking plug (50) disengaging the disc (32) and retaining plate (38).

Abstract: A metallic component is by at least one peripheral edge. The component includes at least one elongated treated zone having a length substantially greater than its width. This treated zone is spaced away from and disposed generally parallel to the peripheral edge of the component and the entire thickness of the component within the treated zone is in a state of residual compressive stress. Crack growth from the edge due to fatigue or damage is resisted.

Abstract: The invention relates to a turbine comprising at least four stages and to the use of a rotor blade with a reduced mass. In prior art, rotor blades in the fourth stage of a gas turbine, which exceed 50 cm in length, cause problems relating to mechanical strength, as centrifugal forces of too great a magnitude occur during the rotation of the rotor blades. An inventive rotor blade in the fourth row of a gas turbine has a reduced density as a result of a high proportion of a ceramic, thus reducing the centrifugal force.

Abstract: A ceiling fan suspended from a mounting rod and comprising a transverse support. A pair of hanging fans are distally mounted on the transverse support. A motor fixed to the mounting rod and spaced radially therefrom drives a gyro gear about an axis parallel to and spaced from the mounting rod. The gyro gear drives a central hub gear about an axis aligned with the mounting rod. The center gear is fixed to the rotatable hub coupled to the transverse support. The fan may be stopped at any point in its rotation and be pointed to direct air flow at a selection location. And the fan may be controlled by a remote control to allow a user to conveniently point the fan at any selected location.

Abstract: A dual pump apparatus having two pumps mounted in a housing, where the housing comprises two elements mounted on opposite sides of a hydraulic mounting member or center section. The pumps are mounted on one side of the hydraulic mounting member in a pump cavity, and the center section and second housing element form a gear cavity in which gears to connect the two pump input shafts are located. Various charge pumps or auxiliary pump configurations are disclosed, including one embodiment where the input shaft gears themselves may act as a charge pump for the pump assembly.

Abstract: A horizontal type compressor comprising: a differential pressure plate for dividing an inside of a casing into a high pressure chamber and a lower pressure chamber and thus maintaining an oil level of the high pressure chamber to be higher than that of the lower pressure chamber; and a lubricating unit for supplying oil stored in the high pressure chamber to each sliding part in the compressor and making the oil which finished a lubricating operation return to the high pressure chamber from the lower pressure chamber. The compressor smoothly supplies refrigerant oil and minimizes an amount of the refrigerant oil discharged outside the compressor, thereby prolonging a life of the compressor and increasing a reliability of the compressor. Also, the differential pressure plate and the muffler are integrally formed, thereby reducing a fabricating cost and reducing an assembling process.

Abstract: A blood pump has an impeller rotatably disposed and magnetically suspended within a cavity of a stator by a plurality of magnetic bearings (passive permanent and active electromagnetic) having impeller magnets on the impeller and stator magnets or coils/poles on the stator. A motor includes impeller magnets on the impeller and coils/poles associated with the stator. A single, annular blood flow path extends axially through the cavity between the impeller and the stator, and between the impeller magnets on the impeller and the stator magnets or the coils/poles on the stator.

Abstract: A compressor includes a motor having a rotor for driving a shaft, to drive compressor pistons. A lubricant supply system supplies lubrication to the moving elements within the compressor and motor. A suction fluid to be compressed passes over the motor on its way to the compression chambers. The oil is returned from a bearing mounting an end of the shaft intermediate the motor rotor and the compressor pistons. The bearing mount ensures that the lubricant is returned away from the motor rotor, to reduce the amount of oil that is entrained in the fluid to be compressed.

Abstract: An oilless air motor assembly and method useable for driving hydraulic pumps and the like. The air motor assembly comprises a slide valve that moved back and forth relative to a valve sleeve situated about the slide valve. A low friction or lubricious dry seal member is disposed between the slide valve and the valve sleeve, thereby eliminating the need for added oil or lubricant and additionally avoiding the need for precise machining and matching (e.g., honing and lapping) of the slide valve and valve sleeve. Also provided is a kit for converting a previously manufactured air motor assembly that requires oil or added lubricant to an oilless air motor assembly. Such kit comprises the slide valve, valve sleeve and dry seal member as well as other optional parts associated with those elements.

Abstract: A surface of a fixed scroll which is opposed to a end plate of an orbiting scroll existing outside of a lap of the fixed scroll is formed with: a substantially annular seal portion which extends such as to have an outer wall surface of the fixed scroll outwardly extending from an inner wall surface of outermost periphery of the lap substantially along the inner wall surface, and which comes into slide contact with the end plate of the orbiting scroll; a substantially annular recess located outside of the substantially annular seal portion; and a recess which is brought into communication with an intake port of the fixed scroll independently from the substantially annular recess. With this, back pressure of the orbiting scroll is increased, and turning-over phenomenon of the orbiting scroll can be suppressed.

Abstract: A rotary piston pump for fluids, wherein the ends of the housing are configured so as to provide reduced pressure differentials between opposite sides of the rotor end disks.

Abstract: The present teachings describe various aspects of a pressing device for manufacturing of shaped compacts from pulverized or granulated material. In one aspect, the pressing device includes a frame structure, which, via a lower connection device adapter-like, can be connected to a lower press frame means of a press and a die holding plate arranged in the frame structure. Moreover, the pressing device may further include a base body arranged within the frame structure, the die holding plate, and the base body being arranged in the frame structure relatively movable one to each other, a plurality of punch carriers, at least one part of them being mounted on the frame structure being movable in press direction relatively to the die holding plate and relatively to the base body, and supporting devices which support the punch carriers relative to the base body in the final press position.

Abstract: A platen press for pressing loose wood-based material into structural panels at high temperature while exhausting steam generated in the process through vents distributed across the face of a platen to thereby produce an improved product. The vents are periodically cleaned to remove elements of the panel material that have been deposited into the vents with steam flow or mechanical pressure by pins carried within the platen. The pins are positively extended into respective vents by actuating elements housed within the thickness of the body of the platen.

Abstract: A mold for maintaining alignment between mold halves despite a thermal differential between the mold halves. The lock comprises (1) a T-shaped member, consisting of an enlarged, rectangular head and a tongue extending therefrom, and (2) a receptacle with an outwardly opening U-shaped pocket to receive the tongue of the T-shaped member, when the mold halves are pressed together. A vertical conduit is formed in the head and tongue of the T-shaped member, and a horizontal channel, extending through the tongue, intersects the lower end of the conduit. At lest one groove is defined in each side wall of the conduit. A grease fitting is located in a blind hole in the head of the T-shaped member, so that lubricant flows through the vertical conduit, into the horizontal channel, and into the grooves in the opposite side walls of the tongue. The grooves are usually formed in pairs, and are configured in an intersecting X configuration.

Abstract: A die press is described. In one embodiment, the die press includes an alignment mechanism having one or more flexure members coupled to a die to maintain coupling with the die during a pressing operation.

Abstract: A tablet press with a rotary turret that is driven by a direct drive is described. The rotary turret can be driven by a simple, inexpensive drive having low vibrations, which reduces the stress on the mechanical components and the drive train of the press.

Abstract: A guiding system for guiding a moldset onto a molding machine. The guiding system includes guide grooves on each side of a core plate of the moldset and guide slots on a face of the machine. A slightly raised surface is provided in a top portion of the guide slots and a wedge shaped portion is provided at a base of the guide slots. The moldset is inserted into the machine by guiding the grooves into the guide slots. The slightly raised portion initially moves the core plate away from the face and the wedge shaped portion forces the core plate into firm contact with the face when the moldset is substantially loaded into the machine. The face may be a face of a movable platen or a face of a hot runner.

Abstract: A slide retaining device for an injection mold is disclosed. The slide retaining device has a device body which has a top surface and a bottom surface. A live bearing can be mounted in the device body such that a portion of the live bearing extends above a top surface of the device body. The device is secured such that the live bearing supports the travel of a slide. A shoulder surface is formed where a body head portion interfaces with a body base portion. A spring is disposed is around the body base portion such that a spring top is in communication with the shoulder surface, and a spring bottom extends below the bottom surface of the device body. The spring creates a “pre-load” force that will hold the slide in place. Optional washers can be added to the device to adjust the “pre-load”.

Abstract: A press for flattening dough pieces is provided having a floor supported frame, an endless conveyor belt movably carried on the frame and presenting an upper horizontal surface, and at least one movable platen carried on the frame for pressing the dough pieces against the belt. In an embodiment, a sub frame is adjustably supported by the frame to permit leveling and adjustment of said sub frame relative to the frame. Attachment mechanisms are provided for securing the sub frame to the main frame following adjustment between the two. In an embodiment, at least two movable platens are carried on at least one of said frames, both of the platens being movable in a longitudinal horizontal direction and at least one of the platens is movable in a vertical direction. A linear actuator is drivingly connected to the two movable platens. In an embodiment, a loading system for loading dough balls onto the belt is provided.

Abstract: A process for stretching films is described. The process preferably stretches films in a uniaxial fashion. Preferably, optical films are stretched including multilayer optical films. Other aspects of the invention include a roll of stretched film and an apparatus for stretching films.

Abstract: A device for treating powder for a device for producing a three-dimensional object by means of a generative manufacturing process, in particular by means of laser sintering, is provided, having a supply container (1) for the powder with a base (2) and a side wall (3), characterised in that a chamber, which has a wall (4) which is permeable to a fluid medium towards the container interior, is provided in the container (1), and in that a device (9) for supplying a fluid medium into the chamber is provided.

Abstract: The present invention includes a template comprising a plurality of protrusions and a plurality of recessions with a distance between a zenith of any of the plurality of protrusions and a nadir of any one of the plurality of recessions being less than 250 nm.

Abstract: A tooling system in a press for forming a product from a blank of material disposed between a punch assembly and a die assembly and a method of using the same. The tooling system comprises a knockout and a bushing. The knockout further comprises a shaft having opposed ends, a plate fixed to one opposed end, and a tapered portion. The bushing is supported by one of the punch and die assemblies and defines a lumen configured to slidably receive the shaft for axial movement between an extended position and a retracted position. The lumen has a tapered receiving section at one end thereof configured to mate with the tapered portion of the knockout when the shaft is in the extended position.

Abstract: It is possible to obtain a disk substrate in which an edge of a center hole is free of flash. The disk substrate (23) in which the center hole (24) is provided with a straight portion (24a) and a tapered portion (24b), and an edge on the side of a signal transfer surface (22) of the tapered portion (24b) is provided with an R surface or C surface (24c), a mold apparatus optimum for molding the disk substrate (23), and a disk taking-out apparatus.

Abstract: The present invention provides a manufacturing method for manufacturing an outer tube of an injector having a barrel portion having an excellent circularity, while preventing generation of distortion or warp. A molten resin is injected into a cavity 17 of a metal mold 11 including: a fixed mold 13 having a hole portion 12 having a shape along the outer shape of the injector outer tube 1; a movable mold 14 closing the hole portion 12; and a core 15 inserted into the hole portion 12. A cylindrical vacant portion is provided communicating with a flange forming portion 20 of the hole portion 12. The molten resin R is injected from a sprue 22 and a runner 23 via a submarine gate 24 into the cylindrical vacant portion 21 and the molten resin R is introduced into the cavity 17. The cylindrical vacant portion 21 has a push pin 25. When the molten resin has become half-molten state, the resin in the cylindrical vacant portion is introduced with pressure into the cavity 17 by the push pin 25.

Abstract: A reciprocating mold plate food patty-forming machine is provided that includes a mold plate that reciprocates between a cavity fill position and a patty discharge position. The mold plate is movable beneath a mold cover. A mold cover lifting apparatus is provided as part of the machine and comprises a primary threaded drive that is configured to support and elevate the mold cover and which elevates or lowers upon input of rotary power to raise or lower the mold cover. A motor is operatively connected to the primary threaded drive to input rotary power to the primary threaded drive. A secondary threaded element follows the primary threaded drive and is configured to support the mold cover if the primary threaded drive fails.

Abstract: A control system for controlling an oil or gas burner heating system comprises an ultraviolet flame sensor. Flame is detected and preanalyzed by the control for flame quality factors reflecting the degree of drift from optimal operating conditions including the average flame intensity, and the peak intensity frequencies. Other sensors detect other drift indications including exhaust-gas-stack temperature. A modem can automatically transmit data to a remote computer used by fuel providers and service personnel or upon a call request from the personnel to the control. Software installed in the remote computer calculates the next fuel delivery date and next servicing date based on data transmitted from the control system and from the service personnel.

Abstract: A combustion chamber subassembly for a vehicle heating device, includes a housing with a housing wall and a fuel feed through the housing wall, a fuel distribution element covering the housing wall on the side facing toward a combustion chamber and together with the housing wall bounding a fuel distribution channel arrangement, a plurality of fuel inlet apertures being formed in the fuel distribution element for conducting fuel from the fuel distribution channel arrangement toward the combustion chamber.

Abstract: The present invention relates to melting plate candles which employ heat conductive elements to distribute heat from a burning flame at a wick to a support plate for a solid fuel and to the body of said solid fuel, so as to more rapidly liquefy the solid fuel, such as paraffin wax, and to more uniformly and intensely heat such fuels to increase the efficiency of consumption thereof and to more rapidly release volatile materials contained within said fuels. The heat conductive support plate is configured so as to have a capillary pedestal upon the surface thereof, which magnetically engages a wick holder comprising a preferably consumable wick and heat conductive fins which conduct heat from a flame upon said wick to said support plate, said magnetic engagement of said wick holder preventing accidental removal thereof from said pedestal. The fuel may be provided in various forms, configured to cooperatively engage said wick holder and support plate, and may comprise various volatile materials.

Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.

Abstract: Computer analysis is made of individual patient related data in order to select standard or pre-manufactured orthodontic appliances or appliance components (10) that are most likely to provide orthodontic treatment suitable for the individual patient. This analysis can be made by the software of a custom orthodontic appliance designing system, without actually manufacturing the custom appliance. Geometric parameters (21-24, 28, 29) of a custom designed appliance may be compared with corresponding parameters of alternative standard appliances or appliance components so that the closest standard component can be used. The custom appliance can be designed to accommodate the geometries of one or more appliance components. Where custom mounting instructions that modify otherwise standard installation of an appliance or component will render the standard component more compatible with a custom appliance design, such instructions are provided to the orthodontist along with the selection.

Abstract: A dental cast scanning apparatus is comprised of a base; a single-tooth cast rotating device having a detachable and rotatable first cast-holding jig; a full-teeth cast rotating device having a detachable and rotatable second cast-holding jig; a scanning unit having a scanning probe, an elevator, and a slide rail mounted on the base, for slidable movement along the slide rail; and two swing drivers connected with the single-tooth and full-teeth cast rotating devices. Accordingly, the first and second cast-holding jigs can be driven to swing and rotate with respect to the scanning probe for a predetermined angle to cause efficient and effective scanning outcome.

Abstract: A dental articulator capable of finely adjusting a three-dimensional articulation posture and exerting a secure fastening force by a lever is provided. The dental articulator includes a lower grip plate, a column, an arm, and an upper grip plate, wherein a first ball and a second ball are disposed between the arm and the upper grip plate, and wherein the dental articulator further comprises: a first clamp block having spherical recesses contacting with the first and second balls; a second clamp block having spherical recesses contacting with the first and second balls; a lever disposed on an outer surface of the second clamp block; an engaging bolt passing through the lever and the second clamp block into the first clamp block; and fastening bolts engaged into the lever to shorten a distance between the first and second clamp blocks.

Abstract: A method and device for identification of surgical instruments, in particular of dental instruments, uses a stationary geometric arrangement of instrument holders and a suitable positional allocation of the instruments to these holders. The holders are provided in an arrangement of raster modules which cooperate with a base unit, only a single raster module being accessible in each case for removal and fitting of instruments.

Abstract: A dental construct according to the present invention includes a glass-ceramic coping having a resin composite material in the form of a veneer bonded or otherwise affixed to at least a portion of the coping. A method according to the invention of preparing the dental construct includes the step of bonding or otherwise affixing a resin composite material in the form of a veneer to at least a portion of a glass-ceramic substrate coping.

Abstract: A neuropsychological assessment includes cards having a first indicium on a top face and an index indicium on a bottom face. A display includes an arrangement of images, each image corresponding to one of the first indicia, the image number fewer than or equal to the card number. A receptacle has depressions for holding a card, each having an aperture therethrough positioned commensurate with the index indicium's location. At least some of the depressions are positioned analogously to the display arrangement. A trial is administered by revealing the display to an examinee. The display is removed from examinee view, and the examinee is instructed to reproduce the arrangement of the images by selecting a card having a first indicium corresponding to an image and placing the selected card within a selected depression on the receptacle in a position that corresponds to a position of the corresponding image on the display.

Abstract: Provided are a method, system, and program for providing information on a promoted product to a user. A virtual environment is rendered and a virtual customer is rendered within the virtual environment, wherein the virtual customer utilizes the promoted product by receiving input control signals from the user indicating movement of the virtual customer through the virtual environment. Interactions are rendered between the virtual customer and the virtual environment in response to the input control signals to enable the user to virtually experience how the promoted product is capable of impacting daily activities of the user and to promote the product.

Abstract: A signal connecting apparatus of a mobile communication terminal is disclosed. A signal connecting apparatus comprises a plurality of connectors for providing reciprocal rotation to exchange signals between a main board of a first portion of the folder type mobile terminal, and a display portion of a second portion of the folder type mobile terminal, wherein the second portion is rotatably connected to open and close relative to the first portion.

Abstract: An interface card includes a circuit board including an opening, a connector installed on an edge of the circuit board, a covering means including a first shield installed on a side of the circuit board and including a hole, and a second shield installed on the other side of the circuit board including a pin for passing through the opening of the circuit board and inserting into the hole of the first shield so as to combine the second shield with the first shield for covering the connector.

Abstract: Multiple small conductive and flexible hollow rings, each of which is made from a pliable material, provide a flexible connection medium for use between a substrate and a microelectronic device package. Each ring is soldered to both the substrate and the device. A portion of the sidewall of each ring is not soldered thus insuring that at least part of the ring stays flexible. The rings accommodate elevation differences on a substrate and electronic device package. They also provide a vibration resistant and flexible joint.

Abstract: An interconnect assembly is presented. The assembly includes an interconnect structure including a plurality of interconnect layers disposed in a spaced relationship, where each of the plurality of interconnect layers comprises a plurality of conductive traces disposed thereon. Furthermore, the assembly includes a redistribution layer disposed proximate the interconnect structure, where the redistribution layer is configured to facilitate coupling the interconnect structure to the one or more transducer elements on the transducer array.