Abstract: A cooling fluid pump includes a casing having a cylindrical pump chamber inside and an outer surface, the pump chamber having an inner surface, an impeller mounted rotatably inside the pump chamber and having a number of pump vanes, the impeller further having an axial end, a fluid path defined around the impeller in the pump chamber so that a fluid flows through the fluid path upon rotation of the impeller, a discharge port formed in the casing for discharging the fluid inside the fluid path and a suction port formed in the casing for suctioning the fluid into the fluid path upon rotation of the impeller, a protrusion formed on a portion of the inner surface of the pump chamber opposed to the axial end of the impeller, thereby separating the fluid discharged from the discharge port and the fluid suctioned from the suction port as well as pressuring the fluid flowing in the fluid path, and a heat receiving portion formed on a part of the outer surface of the casing overlapping the protrusion.

Abstract: A centrifugal fan comprises an impeller, a motor which is connected and rotates the impeller and a housing which has an intake and an air blowing port for housing the impeller. The impeller has a plurality of blades arranged on a circumference. The intake opens opposed to the right end (in FIG. 1) of the impeller. The air blowing port opens opposed to a side of the impeller. A gap enlarged portion, in which the distance between the outer circumference of the impeller and the inner face of the housing starts to increase at a point where the distance between the outer circumferential of the impeller and the surface of a nose portion is smallest therein, the nose portion being a region of the vicinity of an edge portion of the air blowing port, the edge portion being the closest side to the outer circumference of the impeller.

Abstract: A platform cooling system usable in a turbine engine together with an airfoil for preheating cooling fluids before the cooling fluids enter a cooling system in the airfoil in a turbine engine. The platform cooling system includes cooling channels in either the ID or OD platforms, or both, of the airfoil. The channels transfer heat to the cooling fluids flowing through the platform cooling system and thereby heat the cooling fluids. The preheated cooling fluids are particularly useful with cooling composite ceramic airfoils, which are susceptible to damage from large temperature gradients developed between combustion gases outside the airfoil and cooling fluids inside the airfoil. The platform cooling system may be combined with an airfoil cooling system to create a serial cooling system in which cooling fluids may enter the platform and flow through the platform and airfoil without being supplemented with additional cooling fluids along the flow path.

Abstract: A ring seal is mounted in the annular gap between a shroud platform overhanging portion and the surrounding shroud support to minimize cooling air leakage through the shroud.

Abstract: A seal for a rotating machine is designed to be operable when set and cured in situ and one seal arrangement includes a washer having a beveled face and a nut having a beveled face axially spaced therefrom and mounted in a housing, the one seal arrangement is mounted between the bevel faces and assembled to be angularly disposed relative to the rotating shaft. The bottom edge defines a lip that defines a minuscule opening allowing only the air from an air/oil mist to leak downstream thereof. Another seal arrangement also set and cured in situ, is mounted adjacent the rotating inner race of a ball bearing so that the reaction from the seals static relationship and the rotating inner race causes the oil of the oil mist to be slung in a direction complementing the centrifugal force while the air flows axially. When the two seals are mounted in tandem the oil does not leak pass the angularly disposed seal.

Abstract: A method for deicing a rotor blade having a blade root, a blade tip, and a leading edge in which the rotor blade is operably coupled to a hub of a turbine includes circulating heated air through an outflow channel from the blade root towards the blade tip, recirculating the heated air via a return channel from the blade tip to the blade root, whereupon the recirculated heated air becomes returned air, and reheating the returned air for further circulation.

Abstract: An airfoil for a gas turbine engine includes a first sidewall and a second sidewall coupled together at a leading edge and a trailing edge, such that a cavity is defined therebetween. A plurality of rib walls extend at least partially between the first and second sidewalls, wherein the plurality of rib walls define at least one cooling circuit having at least three cooling chambers. At least one row of openings extend through at least one of the rib walls, wherein a first of the cooling chambers supplies cooling fluid to the cavity, and the remaining cooling chambers are coupled in flow communication with the first cooling chamber via the openings.

Abstract: A rotor blade damper is provided that includes a body having a base, a tip, a first contact surface, a second contact surface, a trailing edge surface, and a leading edge surface. The trailing edge and the leading edge surfaces extend between the contact surfaces. The first contact surface, second contact surface, trailing edge surface, and leading edge surface all extend lengthwise between the base and the tip. The body includes at least one cooling aperture disposed adjacent the base, that has a diameter that is approximately equal to or greater than the width of the trailing edge surface adjacent the tip. The body tapers between the base and the tip such that a first widthwise cross-sectional area adjacent the base is greater than a second widthwise cross-sectional area adjacent the tip.

Abstract: A gas turbine engine blade has a relatively large fillet to improve the characteristics of the air flow thereover. The fillet has a thin wall which partially defines a fillet cavity therebehind, and cooling air is provided to the fillet cavity and is then routed to the outer surface by way film cooling holes. Various design features are provided to enhance the effectiveness of the cooling air being provided to both the fillet cavity and other cavities within the blade.

Abstract: A turbine blade airfoil assembly includes a cooling air passage. The cooling air passage includes a plurality of impingement openings that are isolated from at least one adjacent impingement opening. The cooling air passage is formed and cast within a turbine blade assembly through the use of a single core. The single core forms the features required to fabricate the various separate and isolated impingement openings. The isolation and combination of impingement openings provides for the augmentation of convection and film cooling and provide the flexibility to tailor airflow on an airfoil to optimize thermal performance of an airfoil.

Abstract: A turbine stage includes a row of airfoils and their platforms spaced laterally apart to define flow passages therebetween. Each airfoil is integrally joined to its platform at a corresponding arcuate fillet which is larger along the pressure side of the airfoil and smaller along the suction side as it varies in size around the leading edge. A film cooling root hole is disposed in the root fillet in flow communication with an internal cooling circuit in the airfoil for discharging cooling air along the fillet for energizing boundary layer flow of combustion gases flowing through the flow passages during operation.

Abstract: A turbine blade for a turbine engine having a cooling system in the turbine blade formed from at least one cooling channel. The cooling channel may be a serpentine cooling channel with a flow guide extending from a first turn to a second turn of the cooling channel and formed from a first turn section, a second turn section, and a body coupling the first and second turn sections together. The flow guide substantially eliminates separation of cooling fluid flow in the tip region of the cooling channel, thereby increasing heat transfer. In at least one embodiment, the flow guide extends from a first turn in the cooling channel proximate to the blade tip to a second turn proximate to a root of the blade.

Abstract: A fan assembly has a base portion having a fixed base, a blower portion that includes an oscillating blower mount that is operably coupled to the fixed base, and a blower that is coupled to the blower mount and which oscillates when the blower mount oscillates. The assembly further includes a degree swing setting assembly that controls the degree of oscillation to be experienced by the blower mount.

Abstract: A compressor forward stub shaft comprising a plurality of axially spaced, annular rows of dovetail grooves, at least a first and a second of the plurality of rows having dovetail slots coated in part with an anti-wear coating.

Abstract: A device for holding an annular end plate against a radial face of a rotor disc, the disc having in the radial face an annular recess behind a collar extending radially outwards, and the end plate having, in its radially inner part, an annular base bearing against the radially outer wall of the recess and a foot extending radially inwards in the recess from the base, the device including a split annular retaining ring disposed in the recess. The ring is constituted by a snap ring interposed axially between the foot of the end plate and the collar and the peripheral surface of which butts against the base, the peripheral surface and the collar comprising, when joined, notches, which open radially outwards and are intended to receive compression tools for the snap ring, which tools retract into the contour of the collar during the assembly or disassembly of the end plate.

Abstract: A rotor blade for a gas turbine engine includes a blade root (3) and an aerofoil projecting therefrom, the aerofoil having a leading edge and a trailing edge (5), a generally concave pressure surface (2) and a generally convex suction surface (1). The aerofoil shape of the blade varies in section along the length thereof such that: the chord-wise convex curvature of the rear suction surface decreases towards the tip (4) of the blade; the convex curvature of the early to mid suction surface increases towards the tip; the stagger of the aerofoil section increases towards the tip; and the trailing edge (5) is a straight line.

Abstract: A gas turbine engine blade is laser shock peened by laser shock peening a thin airfoil of the blade, forming a laser shock induced twist in the airfoil, and shot peening a portion of the airfoil to counter the laser shock induced twist in the airfoil. The shot peening may be performed before or after the laser shock peening. The shot peening may be applied over a laser shock peened surface formed by the laser shock peening. The shot peening may be performed asymmetrically on asymmetrically shot peened pressure and suction side areas of pressure and suction sides, respectively, of the airfoil. A shot peened patch near a blade tip may be formed on one of pressure and suction sides of the airfoil wherein the airfoil extends radially outwardly from a blade platform to the blade tip of the blade.

Abstract: A system for optimizing compressor output flow when a maximum power consumption limit exists and the compressor inlet pressure can vary. Utilizing the invention the maximum compressor output flow can be obtained even while the inlet pressure to the compressor varies.

Abstract: A system for detecting a collection of liquid, notifying a person or thing that liquid has been detected and pumping the liquid. The system includes a control unit, at least one sensor and relay and a pump. Preferably, the system includes a first sensor that senses a collection of liquid which activates a relay which completes an electrical circuit to activate a notification means, such as a siren, light, telephone dialer or other notification device. Preferably, the system also includes a second sensor that senses an additional collection of liquid and thereby activates a second relay which completes an electrical circuit and delivers DC power to the pump which pumps the additional collection of liquid to its desired location. The control unit includes a transformer, relays and plugs to connect to an AC or DC power supply, typically a standard 110 volt AC, 15 amp power supply.

Abstract: A pump apparatus is provided which comprises a first displacement pump and a ceramic valve construction formed of a ceramic rotor, a ceramic stator having flat surfaces which are positioned in sealing relationship and a second displacement pump having check valves. The first displacement pump comprises a reciprocating first piston within a housing having an interior wall spaced apart from the piston. The position of the first piston and the position of the rotor are controlled to effect desired fluid flow through the stator. The first piston and a second piston of the second displacement pump are reciprocated by a common motor.

Abstract: An electro-hydraulic power steering apparatus includes: a motor having a rotational shaft and provided with a bearing for rotatably bearing the rotational shaft; a hydraulic pump disposed at one end of the rotational shaft of the motor and driven by the motor; a first elastic body for supporting the bearing; and a second elastic body for pressing the bearing in an axial direction.

Abstract: A system and method for protecting a motor for a submersible pumping system. A variety of motor protectors are provided for application in variable temperature environments and multiple wellbore orientations. The motor protectors may include one or more of a positively pressurized bellows, a relatively balanced pressure bellows free of sliding seals, and a multi-orientable labyrinth. Each of these motor protectors also may have various moisture absorbents, filters, particle shedders and various conventional motor protector components.

Abstract: The hose pump comprises an eccentric drive with numerous eccentric discs (21) fastened to a shaft (20). Each eccentric disc (21) drives a crank drive (24) having a connecting rod (25). At the end of the connecting rod (25), a pump finger (11) is borne for compressing a pump hose (10). A sealing diaphragm (27) is disposed between the eccentric drive and the pump hose (10) for preventing liquid from intruding into the interior of the housing (16). The connecting rod (25) sealingly passes through the sealing diaphragm (27). The sealing diaphragm (27) comprises lateral folds (31) so that it does not exert any substantial forces upon the crank drive (24). The hose pump has a low power consumption and permits a small structure.

Abstract: Rotation interception mechanisms (10) are mounted to intervene between a drive casing (22) and a substrate (60) of a movable scroll (54), and include a binding member (11) for binding rotation of the movable scroll, a fixed side pin (14) provided with protrusion in the drive casing to get engaged with the binding member, and a swivel side pin (15) provided with protrusion in the movable scroll to get engaged with the binding member for being restrained by the binding member and swiveling around a shaft center of the fixed side pin; and load alleviation means (54h) alleviates a load onto the fixed side pin and the swivel side pin caused by the torque due to the distance between the gravity center (O) and the rotation center (OR) of the movable scroll and the centrifugal force.

Abstract: A rotary compressor for compressing a working fluid includes a housing having an oil sump. A stationary shaft extends into the housing and includes a longitudinal passage. The longitudinal passage has an oil inlet in fluid communication with the oil sump. A working fluid inlet receives the working fluid. A motor has a stator and a rotor. The rotor is rotatably mounted on the shaft within the housing and includes an internal compression chamber in fluid communication with the longitudinal passage. A roller is rotatably mounted on the shaft and eccentrically disposed within the compression chamber. The roller is coupled to the rotor such that rotation of the rotor rotates the roller and thereby compresses the working fluid within the compression chamber.

Abstract: The invention provides a tire vulcanizing apparatus which can reduce time loss and efficiently vulcanize and mold employing a tire loading apparatus for positively loading the green tire, and forming a moving unit in which the tire loading apparatus and the lower mold are integrally connected.

Abstract: The invention is a mold and method for using the mold to make a multi-stage intraocular lens. The mold is provided with a gate in fluid communication with a lens portion and/or haptic portion of the mold core. In addition, a gasket is provided around the mold core. As molding material is introduced into the mold via the gate, a vacuum is drawn around and through the gasket to evacuate air trapped in the mold core and to help pull the material through the mold core.

Abstract: Manufacturing a coating for an impression cylinder whereby a carrier and a cylinder shape is provided. A hollow cylinder is positioned between the carrier and the cylinder shape, and material to form the coating in the spaces is introduced between the carrier and the hollow cylinder (the internal field) and between the hollow cylinder and the cylinder shape (the external field). The hollow cylinder is removed at a certain pre-selected velocity from between the carrier and the cylinder shape.

Abstract: A resin roller (10) is produced by disposing a core body (21) in a forming metal mold (1) having a cylindrical metal mold (13) and core supporting members (14) furnished at both edge parts of the cylindrical metal mold (13) as well as causing the core supporting members (14) to hold said both edge parts, and pouring a forming resin into the metal mold and solidifying it. The resin roller (10) has the core body (21) of the same outer diameter over a full length and a cylindrical resin-formed body (12), sealing members (24, 26) are furnished around the core body (21) in the vicinity of both edge parts of the resin-formed body (12), and the core body (21) is disposed such that the sealing members (24, 26) contact edge faces (14a) at sides of a roller forming space of the core supporting members (14).

Abstract: The present invention relates to a high speed direct mold clamping apparatus. The direct mold clamping apparatus has a grooved channel for the flow of oil inside a clamping cylinder to minimize the flow of oil between inside and outside the clamping cylinder. Then, the clamping ram can perform high speed reciprocation in the clamping cylinder.

Abstract: A guide member having guide faces is mounted on a base frame of an injection molding machine. Adjusting mechanisms are fixed to a platen. The inclination of a moving platen with respect to a stationary platen in a horizontal direction is adjusted by adjusting the projection amount of a member disposed in the adjusting mechanism in abutment against the guide face toward the guide face.

Abstract: The invention relates to arrangements comprising combinations of: a mincer providing a stream of minced meat (V); conveying means with an endless band (T) for transporting the stream (V), exiting from said mincer; and, arranged along said conveyor means (T): means for cutting the stream (V) into portions (P) and means for lateral shaping (/), acting simultaneously on both sides of the stream (V) to shape the contour of the portions (P).

Abstract: A stabilizer kit for a compression head of a concrete block machine is provided, the kit including a stabilizer plate, a fiber disc, a stud, a pair of spacer plates and a set of bolts for attaching the stabilizer plate and a pair of spacer plates to and between an upper portion and a lower portion of a frame of the block machine.

Abstract: The invention relates to fastener molding. In one aspect, a molding apparatus for forming a sheet-form fastener product includes a first ring defining a plurality of voids extending inwardly from a circumferential surface of the ring. The voids are circumferentially spaced apart from one another by portions of the ring including recessed regions that partially define molding cavities. The molding apparatus also includes multiple plug members configured to be disposed within the voids. The plug members and the portions of the ring therebetween cooperate to define the molding cavities when the plug members are disposed within the voids. The molding cavities are shaped to mold, from molten resin forced into the molding cavities from a peripheral surface of the molding apparatus, an array of fastener elements having overhanging heads for releasable engagement with a mating fastener product.

Abstract: Hot runner nozzles and a method of assembling a hot runner nozzle. The invention provides a hot runner nozzle including a material tube having a tube cavity therethrough, a tip insertable into the tube cavity, and a cap threadably connected to the material tube, the cap engaging the housing and the tip to secure the tip to the material tube. Also, the invention provides a hot runner nozzle including a material tube having a tube cavity therethrough, the tube cavity defining a first portion having a first diameter and a second portion having a second diameter greater than the first diameter, a tip insertable into the tube cavity, wherein the tip engages the material tube in the first portion of the tube cavity and is spaced from the material tube in the second portion of the tube cavity to provide an air space between the tip and the material tube.

Abstract: This invention relates to a method and apparatus for improved process control in combustion applications, and particularly those relating to the steelmaking industry. An apparatus is provided for process control in a combustion application comprising a laser to transmit a near-infrared laser beam through off-gas produced by the combustion application, a detector to detect the transmitted laser beam and convert the detected laser beam to an electrical signal, and a control system for providing adjustment of select inputs to the combustion application in response to the electrical signal from the detector. The method of this invention comprises transmitting a near-infrared laser beam through off-gas produced by the combustion application, detecting the transmitted laser beam, and adjusting select inputs of the combustion application in response to the detected transmitted laser beam.

Abstract: The candle wick snuffer is mounted on a baseplate which is at the bottom of the candle. The baseplate carries a swing arm which is released when the temperature rises to critical point in the bottom of the candle. The baseplate may also carry a wick retainer to maintain the correct relative position between the swing arm of the candle wick snuffer and the wick. When the swing arm is released, it pulls the remaining wick down to snuff the candle flame.

Abstract: A cooled furnace wall comprises a furnace shell with an inner and an outer side and cooling plates lining the inner side of the furnace shell. Each of the cooling plates has a plate body and protruding connection pieces for supplying the cooling plate with a coolant. The furnace shell has connection openings therein for interconnecting the connection pieces of adjacent connection plates from the outer side of the furnace shell. At least one of the connection pieces is formed by a tube bend that protrudes from an edge face of the plate body and that has a connection end to extending through one of the connection openings in the furnace shell.

Abstract: Articles including an orthodontic bracket having a base for bonding the bracket to a tooth are disclosed. A first part of an at least two-part adhesive is on the base of the bracket and a release substrate is in contact with the adhesive.

Abstract: An orthodontic appliance includes a latch that comprises at least one clip with a region for receiving an archwire. The clip also includes a recess for receiving a post of the appliance and for coupling the clip to remaining components of the appliance. The clip includes at least one protrusion that extends between the post-receiving recess and the archwire-receiving region, and the protrusion serves to retain the clip in place on the post.

Abstract: A hand-held dental mirror carrying a sharpening stone for a dental instrument such as a curette, comprising a shaft supporting a mirror, a hand grip coupled to the shaft, and a sharpening stone coupled to the shaft.

Abstract: A switching device for an irrigation line includes two flexible supply tubes (4a, 4b), each of the tubes connecting a flask containing an irrigation fluid to a handpiece via a peristaltic pump. The device includes at least one compression element (34a, 34b) and control members (32) which can apply the compression element alternatively to each of the flexible supply tubes (4a, 4b) in such a way as to squeeze and block the tube. The control members (32) are designed such that, when one of the tubes is being squeezed in order to block the passage of the fluid through same, the other tube is not being squeezed so that the fluid can flow through the other tube.

Abstract: An ultrasonic dental insert for an ultrasonic dental tool is provided. The ultrasonic dental insert includes a transducer, a connecting body, a hand grip, at least one O-ring and a removable tip. The transducer generates ultrasonic vibrations. The connecting body has a proximal end attached to the transducer and a distal end. The distal end has an engagement portion formed thereon. The hand grip envelopes at least a portion of the connecting body. At least one O-ring is for shock absorption, and is mounted between the connecting body and the hand grip and around the engagement portion. The removable tip engages the engagement portion.

Abstract: The invention relates to a medical or dental-medical handpiece having a rotary part, in particular a turbine rotor. In order to improve the handpiece with regard to small construction, running noise and economical construction, there is provided a roller bearing for the purpose of mounting the rotary part, having at least two roller body rows arranged next to one another.

Abstract: A prosthesis mounting device and assembly for securing a prosthesis on an implant supported in bone tissue. A metallic appendage or “preppable abutment” is carried by a dental implant and is milled or “prepped” into a shape suitable to accept a dental prosthetic. A recess extends axially upwardly from an axial bottom end of the appendage and is shaped to fit over an O-ring receiver abutment or “O-ball” of a dental implant.

Abstract: Methods and kits of materials and supplies for forming a dental prosthesis by an injection molding process in situ in a patient's mouth so as to correct the imperfect teeth of the patient's dentition. The imperfect teeth are corrected by injection molding the dental prosthesis in situ in the patient's mouth using a mold of a corrected model of the patient's dentition placed over the imperfect teeth. Adjacent teeth are covered with a polymer release material prior to injection molding of teeth to be corrected, such that the teeth to be corrected have at least one tooth between them draped with the polymer release material to provide a space adjacent to each of the corrected teeth. The corrected teeth are then covered with the polymer release material in a second round of treatment to complete the procedure on the remaining teeth.

Abstract: A unique educational medium for teaching children to recognize various objects by sight and touch including animals, vegetables, minerals, articles, items, and environmental features according to a thematic scene associated with the medium. The medium is preferably at least one sheet of material having a surface with a plurality of objects thereon and forming a part of the thematic scene, the objects representing at least two of the group consisting of images, shapes, forms, and numbers. Tactile material forms at least a part of each object and is used to represent the actual object such that a user may touch the tactile material and recognize the object. The sheet is of a size sufficient to allow a user to walk on the sheet, cover themselves with the sheet, and identify objects on the sheet by touch.

Abstract: A therapy-based method for increasing the communications skills of children diagnosed with Pervasive Development Disorder (“PDD”) through a combination of therapy steps performed in a particular order and for specific amounts of time. The method makes use of integrating language scripting, sensory integration, occupational and speech therapies, visual supports, and a structured routine, which teaches children diagnosed with PDD specific social-based interactions that improve the ability of those diagnosed with PDD to interact with others in common social settings.

Abstract: Methods for designing an assessment and providing accessibility features for a test taker profile are disclosed. A test taker profile, including multiple knowledge, skill and other attribute(s) (KSAs), is defined in which each KSA has a specific level. Each KSA is designated as either a focal KSA (an essential part of the targeted proficiency to be measured) or an ancillary KSA (not an essential part). For each focal KSA, a focal value (the value that the test taker must have to possess a high level in the targeted proficiency) is defined. For a particular test design alternative (which may include an accessibility feature), a requirement is determined for each KSA. An accessibility feature is selected which avoids indications of invalidity, including: a mismatch between the targeted proficiency and the expected proficiency; the test taker profile does not satisfy all ancillary requirements; and focal requirements are either excessive or insufficient.

Abstract: An electronic educational toy designed to teach letters, words and numbers and stimulate the development of a child's mind using audio feedback, the educational toy including an enclosure enclosing a processor, a data storage medium and a speaker and having a substantially planar surface, at least a portion of which comprises a contact-sensitive display screen for being contacted by a child.