Abstract: A method for modifying a multistage compressor (101) involves exchanging the rotor blades of the first compressor rotor blade row (LA1) for modified rotor blades which have an identical blade leaf profile (121) to the original rotor blades and the blade angle (B?11) of which is different from the blade angle (B?10) of the original rotor blades. Furthermore, the blades of at least one further blade row (LAN, LEN) arranged downstream of the second compressor stage are exchanged for modified blades which have an identical blade leaf profile (125, 126) to the original blades and the blade angle (B?N1, B?N1) of which is different from the blade angle (B?NO, B?NO) of the original blades. The method makes it possible to increase the mass flow of a compressor and essentially maintain the stability reserve against stall.

Abstract: A turbine rotor blade for use in a gas turbine engine, the rotor blade including a plurality of wavy flow cooling channels extending in the blade chordwise direction from a leading edge supply channel to a trailing edge exit hole. Each wavy flow channel is connected to the leading edge supply passage by a metering hole in order to regulate the cooling air pressure and flow through that channel. The wavy flow channels are formed by ribs that form a sinusoidal flow path for the cooling air to increase the turbulent flow and increase the convective surface area which both lead to a thin rotor blade with increase cooling efficiency and lower cooling air volume than the prior art blades.

Abstract: The balancing flyweight of a turbomachine rotor includes two pyramid shaped end parts each one having a base and an apex, and an intermediate part which connects the two bases of the end parts together. The two apexes are aligned on a longitudinal axis. The two end parts and the intermediate part exhibit, in cross section through a plane perpendicular to said the longitudinal axis, cross-sections having polygonal shapes centered on said longitudinal axis.

Abstract: An array of blades for use in a turbomachine is provided comprising a plurality of blades mounted to a rotor disk. A plurality of first blades form a first set of blades and a plurality of second blades form a second set of blades. A blade-to-blade flow field defined between successive ones of the first set of blades is interrupted by the second set of blades to form an asymmetric blade-to-blade flow field around the array of blades. The trailing edges of the second set of blades are positioned forwardly from a line connecting the trailing edges of the first set of blades such that shock forces in the flow field around the array of blades will generally impinge on a stable region of the first set of blades.

Abstract: A composite vane includes an airfoil portion having an inner core composed primarily of fiberglass epoxy; a carbon epoxy fabric located outward of the inner core; a relatively thin layer of fiberglass epoxy, and an outer metal sheath.

Abstract: An aerofoil 26 for a gas turbine engine (10, FIG. 1) comprises a cavity 38, a cellular material 42 located in the cavity 38 for stiffening the aerofoil 26, and a vibration damping medium 44 located in the cavity 38 for damping the aerofoil. The cellular material 42 is preferably a metal foam bonded to the inner surface 34a, 36a of the hollow aerofoil 26, and the vibration damping medium 44 is preferably a viscoelastic material. Various methods for fabricating the aerofoil 26 are also described.

Abstract: A modular system for the control of at least one compression system for the compression a fluid medium, said compression system comprising compressors (C1-C7) and their controllers (A1-A7) for the compression of the fluid medium, secondary treatment devices for the treatment of the medium delivered from the compressors, and piping systems (17-19, 23) for conducting the fluid medium to a place of consumption (16, 22), said control system comprising a control unit (3) containing a data processing system (34) for controlling the compression system, a user interface (35) including a display associated with it and transmission means for the transmission of control data between the control unit, the controllers and pressure sensors. The transmission means consist of data communication buses, preferably serial communication buses (30-32) and a data communication port unit (33) serving to connect the bus to the control unit (34). The controllers and pressure sensors are connected to common data communication buses.

Abstract: A magnetohydrodynamic pump for pumping a fluid. The pump includes a microfluidic channel for channeling the fluid, a MHD electrode/magnet system operatively connected to the microfluidic channel, and a system for promoting flow of the fluid in one direction in the microfluidic channel. The pump has uses in the medical and biotechnology industries for blood-cell-separation equipment, biochemical assays, chemical synthesis, genetic analysis, drug screening, an array of antigen-antibody reactions, combinatorial chemistry, drug testing, medical and biological diagnostics, and combinatorial chemistry. The pump also has uses in electrochromatography, surface micromachining, laser ablation, inkjet printers, and mechanical micromilling.

Abstract: A method of displacing a pumping assembly. In a first step, a first current is applied in a first direction through a coil assembly to displace a drive assembly from an initial position to cause a first pumping motion. Then, the drive assembly is returned to the initial position to cause a second pumping motion. At some point nearing the end of the second pumping motion, a second current is applied in the first direction through the coil assembly to decelerate the drive assembly before it reaches the initial position. A third current may be applied in a second direction through the coil assembly to cause or assist a return of the drive assembly to the initial position. An apparatus capable of carrying out the method is also disclosed.

Abstract: A self-attaching pump includes a cylinder, a nozzle attached to the cylinder, a piston installed in the cylinder, a rod connected to the piston, a handle with a first end and an opposite second end, a fastener for pivotally connecting the second end of the handle to the rod and a stressing device arranged on the cylinder for stressing the self-attaching pump. There are defined a first value for the distance between the fastener and the first end of the handle, a second value for the length of the elastic element when the stressing does not stress the self-attaching pump and a third value for the distance between the piston and the nozzle when the first end of the handle reaches the stressing device while the stressing device does not stress the self-attaching pump. The first value is larger than the second value that is larger than the third value.

Abstract: A motor assembly including a body that includes a plurality of cylinders and a plurality of air channels and a conical shaped piston slidably coupled within each of said plurality of cylinders. The motor assembly also includes a rotatable timing shaft positioned concentric to and at least partially housed within the body and in flow communication with an air source and the plurality of air channels and a cam plate coupled to the timing shaft and configured to engage the pistons and generate torque.

Abstract: An apparatus for delivering a fluid includes a housing, an inlet in the housing for receiving the fluid, and an outlet in the housing for discharging the fluid. A piston channel is provided within the housing through which the fluid flows from the inlet to the outlet. An actuator is positioned within the housing and is moveable between a retracted position and a forward position, the actuator defining a piston chamber for storing fluid received through the inlet when the actuator is in the retracted position and for driving the fluid stored in the piston chamber toward the outlet when the actuator transitions from the retracted position to the forward position. The actuator includes an armature and a piston coupled to the armature and moveable within the piston channel. The piston is provided with a groove in an outer surface for conducting fluid from the inlet to the outlet.

Abstract: A vacuum pump evacuates gas from a chamber by coaction of a rotationally driven rotor and a stator. An electrical equipment section that rotates the rotor is housed within a stator column integral with the stator. A cooling water pipe is buried in a wall of the stator column near the electrical equipment section. One end of the cooling water pipe branches into a plurality of water inlet ports and the other end branches into a plurality of water outlet ports. One pair of water inlet and outlet ports opens to the outside of the vacuum pump at a side surface of the stator column and another pair of water inlet and outlet ports opens to the outside at the underside of the stator column.

Abstract: A miniature liquid cooling device includes a casing (10) defining a first chamber (102), a second chamber (104) and a third chamber (106) communicating with the first chamber. The first and the third chambers cooperatively form a work channel for liquid. An impeller (21) is rotatably mounted in the first chamber to circulate the liquid. A filter (17) is mounted in the second chamber and defines a plurality of orifices (1704). When the impeller rotates, first the liquid firstly enters the second chamber via an inlet. (122), and then the liquid flows through the filter within the second chamber, whereby air bubbles in the liquid leave the liquid and escape from the filter via the orifices. The escaped air bubbles enter the second chamber. The deaerated liquid flows into the work channel and finally is driven to low out of the liquid cooling device via an outlet (124).

Abstract: A bolt hole receiving a fixing bolt is formed in a portion of an end plate overlapping an annular piston or a fixed wrap as viewed in a thickness direction of the end plate to open at the back face of the end plate. In fixing a discharge valve to the end plate, the fixing bolt is screwed into the bolt hole.

Abstract: Disclosed herein is a rotary pump in which one or more rotors including rotary cylinders and rotary pistons rotate upon inside a housing having a suction hole and a discharge hole to compress a pump fluid. More particularly, the two rotary pistons are arrange to revolve about a rotating shaft in a state wherein the center of mass of the two rotary pistons coincide with that of the rotating shaft, thereby achieving not only a reduction in the generation of vibrations or noise, but also a variation in the flow of rate of fluid. The rotary pump may have a cover, which is opened or closed in accordance with a pressure, to prevent the generation of backflow and pulsations in accordance with the rotation of the rotary pump when the pressure of the discharge hole differs from that of the suction hole.

Abstract: On screw compressors for extremely high discharge pressures, e.g. for application in refrigeration systems operating with CO2 in a transcritical process, featuring two rotors, a male rotor and a female rotor having a ratio of male-to-female rotor lobes of 4:6, 5:6 or 5:7, with the male rotor having a drive-shaft end, and both rotors are enclosed in a housing, the wrap angle of the profile section of the male rotor is less than 1.5 the lobe-pitch angle, and the working cycle from the beginning of suction till the end of discharge is less than 600° of the angle of rotation of the male rotor, and the length-to-diameter ratio of the profile section of the male rotor lies between 0.3 and 0.5.

Abstract: An apparatus and method for cooling a molten plastic film tube exiting the outlet of an extrusion die is disclosed. The apparatus includes an inlet passage adapted to direct cooling air through the extrusion die to the interior of the plastic film tube. The apparatus includes at least one air dispensing device coupled to the inlet passage. The air dispensing device is configured to receive the cooling air and to direct a flow of the cooling air out of the air dispensing device in an approximately circumferential or tangential direction. The circumferential or tangential flow of the inlet air inside the plastic film tube cools the molten tube while reducing impact on the molten tube.

Abstract: A resin-sealing mold for sealing a semiconductor element with resin includes an upper die (12), a lower die (14) disposed so as to be opposed to the upper die (12), and a plurality of middle dies (13a, 13b) sandwiched between the upper die (12) and the lower die (14), wherein the plurality of middle dies (13a, 13b) are provided with molding faces at tip ends and are placed so that the molding faces are opposed to each other during the sealing. Because of this, the middle dies (13a, 13b) can be opened to the right and left from dividing faces I, and even a resin package of a semiconductor device with a concave part formed in a side surface can be molded.

Abstract: A system in which gravitation and inertial effects on platen verticality and sagging are compensated by an anti-tilt actuator (68, 70). A hydraulic actuator (68, 70) secured beneath the platen is either set to offset only gravitationally-related sagging of the mold half (60, 62) by providing a compensating upward force (relative to a stable clamp base 80), or otherwise its upward force can be dynamically adjusted also to compensate for swaying or tilting of the mold-platen assembly caused by stroke cylinder (98) operation and related inertia/momentum effects. Preferably, a level sensor (94) measures and communicates a degree of horizontalness/verticality of the platen (48, 50) to a machine controller (88) which, in turn, generates a control signal (87) to cause variation in cylinder pressure in the anti-tilt actuator (68, 70), thereby achieving substantially continuous alignment between the mold halves (60, 62) and reduced component wear.

Abstract: A system for flexing a web is disclosed. The web passes over two co-rotating members, such as rollers or belts, which are separated by a small adjustable gap. The web travels around the first rotating member, is peeled off in the vicinity of the gap, bent back on itself in a small radius and reattached on the second co-rotating member. The location of the small radius is fixed with a closed loop control system sensing the radius location and controlling the relative velocity of the two members. Strain in the web is adjusted with the size of the small radius, which is controlled by the adjustable gap and radius location.

Abstract: A device for the moulding of thermoplastic containers by blowing comprises a mould (1) with two half-moulds (2, 3), each having a support (5, 6) and a mould block (7, 8) between which, in one half-mould, a compensating chamber (20) is defined, with elastic return means (26) and abutment means (27) being interposed, which are combined in unitary assemblies (35) each comprising: a bore (36) passing through the support and receiving a pin (38) having one end (39) fastened to the mould block and a first radial shoulder (40) against which bears the end (E) of a sleeve (46) screwed in the bore and having an outer head (47) capped by an axially displaceable housing (49), with the elastic return means being interposed, which are preloaded by a nut (53) screwed on the free end of the pin against a second radial shoulder (54) of the pin, at the same time pushing the housing.

Abstract: Disclosed, according to an aspect of the present invention, is a molding system that includes a mechanical fuse assembly configured to (i) abut a conduit connection, and (ii) permit movement of a conduit connection.

Abstract: A mold structure (100) includes a press board (20), a lower mold (10) and at least one locking mechanism (40) configured for locking the press board to the lower mold. The at least one locking mechanism includes a locking element (41), a slidable block (46) and a driven apparatus (42). The locking element engages with the press board and the lower mold along a first direction. The locking element defines a locking hole (4124). The slidable block engages in the locking hole along a second direction. The driven apparatus drives the slidable block to move along the second direction for pressing the press board to the lower mold along the first direction.

Abstract: A device for forming optical lenses includes a base, a driving mechanism mounted on the base, a controller connected to the driving mechanism and a roll forming die. The controller is configured for controlling the driving mechanism. The roll forming die includes a roller, a number of mold cores attached to the roller, and a molding material container disposed on the base and spaced with the roller. The roller is mechanically coupled to the driving mechanism such that the roller can be driven to rotate by the driving mechanism, the roller, the mold cores and the molding material container are arranged to cooperatively form workpieces. A number of mounting holes are defined in the roller; each of the mold cores is mounted in a corresponding mounting hole. The device for forming optical lenses can reduce internal stress of produced optical lenses.

Abstract: A method and apparatus for fabricating a flat panel display device is disclosed. A thin film is patterned in a patterning process using a soft mold without using a photo process. A thin film layer and a resist are sequentially formed on a substrate. A designated resist pattern is formed by applying pressure to the resist using a soft mold. The resist has a dipole moment ? value equal to or higher than 2(D), or has a solubility parameter value lower than 6 (cal/cm3)1/2 or higher than 11 (cal/cm3)1/2.

Abstract: An auxiliary position apparatus is adapted for an injection molding machine which includes a nose and the nose has a nozzle at one end thereof. The auxiliary position apparatus includes a position device for being mounted to the nose and at least two light emitting devices adjustably mounted to the position device. The two light emitting devices can emit two adjustable light beams to focus as a light-spot which is substantially in alignment with the nozzle on a mold placed on the injection molding machine. By moving the mold to make the light-spot located at an injecting hole of the mold, the nozzle can be adjustably in alignment with the injecting hole rapidly and precisely before the injection molding operations.

Abstract: A bushing body has an upstream portion and a downstream portion for extending into a channel. The bushing body has a bore therethrough for receiving a valve pin. A contoured sleeve is fit around the downstream portion of the bushing body for guiding a flow of molding material. A cap piece is coupled to the upstream portion of the bushing body for contacting a back plate.

Abstract: Burners in prior art exhibit combustion instabilities in certain ranges. The operating range of burners is restricted by said instabilities. In an inventive burner, the combustible has a concentration distribution, whereby the concentration of the combustible reduces in a radial direction from the interior to the exterior.

Abstract: Apparatus for batch processing source material into charcoal in a battery of kilns, each of which use forced convection of process gases through the source material to shorten the process cycle time, and all of which use an external combustor to burn the process waste gases from each kiln to provide the primary source of applied energy for the process.

Abstract: A non-firing rifle that emulates a semi-automatic or automatic rifle for training in procedures for safe handling, cleaning, and field stripping of such weapons. The non-firing rifle retains the upper receiver assembly, barrel assembly, and ammunition magazine of the emulated rifle, as well as some of the components of the lower receiver assembly of the emulated rifle, but substitutes a modified forging for the lower receiver forging of the emulated rifle. Unlike the lower receiver forging of the emulated rifle, the modified forging has no cutouts to allow a trigger or hammer to be installed. A cutout is provided in a bottom wall of the forging, however, to allow installation of a pseudo-trigger. Accordingly, it is incapable of firing a live ammunition round.

Abstract: To provide: a water-discoloring drawing toy which, when a writing utensil or applicator for water adhesion is applied thereto, produces a multicolor image and which eliminates the monotonous production of monochromatic images in a related-art technique and is rich in unexpectedness and changes; and a water-discoloring drawing toy set including this drawing toy.

Abstract: An apparatus, system and method is provided facilitating the planning and tracking of nutrient consumption and expenditure by humans, especially children, including various indicators such as graphical images pertaining to potential dietary intake of foods and liquids like vegetables, fruits and water and physical activities like running, dancing and the like, wherein the various indicators are uniquely charted to accomplish the monitoring and/or projecting of nutrient utilization.

Abstract: There is provided systems and methods for a reorientable electrical outlet. In one embodiment, a system includes a housing configured to be coupled to an electrical power source, the housing having a first rotation stop, and an electrical plug receptacle, mountable within the housing, the insert having a second rotation stop, the first and second rotation stops configured to cooperate with each other to limit rotation of the insert within the aperture at a number of degrees, wherein the plug receptacle is configured to receive an electrical plug.

Abstract: The invention relates to a headrest system for a vehicle seat. The headrest system includes a headrest supported by at least one holding rod, a guide component which can be secured in a backrest of the vehicle seat and is configured to accommodate the holding rod, a first electric connector disposed on a free end of the holding rod, and a second electric connector which cooperates with the first electric connector and can be secured in the backrest. The joining direction of the first and second electric connectors runs approximately coaxially to a central longitudinal axis of the free end of the holding rod. Each of the first and second electric connectors includes at least two contact elements, each of the contact elements designed in a rotationally symmetrical manner in relation to the central longitudinal axis.

Abstract: A connecting device includes at least one connector and a base. The connector includes a connecting slot for electrically connecting to an electronic device, a first pivoting structure disposed on the connecting slot, and a first positioning structure disposed on the connecting slot. The base includes at least one second pivoting structure pivoted to the first pivoting structure so that the connector is capable of rotating relative to the base, at least one second positioning structure for connecting with the first positioning structure so as to fix the connector and the base, and at least one pin set electrically connected to a circuit board and the connector so as to transmit signals between the circuit board and the electronic device.

Abstract: An entirely wearable electrical connector for power/data connectivity. The principal element of a modular network is the wearable electrical connector, which is integrated into a personal area network with USB compatibility. Several wearable connector embodiments are disclosed. An enhancement to the wearable connector includes OSI Layer 2 (and potentially Layer 3) functionality. Data Link layer functionality is supported by including electronic serial numbers at wearable snap-connector points.

Abstract: The present invention relates to a velcro connector, which uses a hook of a velcro tape attached to a garment, etc. and a loop to transfer electric signals by being electrically connected upon coupling the hook and the loop. With the present invention, the difficulty of the line connection upon implementing electronic circuits on a garment can be solved by providing an integrated connector rather than separately mounting a mechanical connector on a garment. Therefore, it makes it possible to easily implement a wearable computer by using an integrated connector on a garment, etc. In addition, a plurality of electronic circuits mounted on a garment, etc. and the existing electronic devices are freely connected to each other by providing the connector that can be easily separated and coupled, thereby making it possible to increase user convenience.

Abstract: A socket connector has a pick up cap (3) cooperated with lateral shields (4) is provided. The pick up cap (3) has a base plate (30) and a plateau (31) surrounded by the base plate (30). The main purpose of the lateral shields is used for covering seams both on a base plate (30) and under raised portions (32) on opposite sidewalls of the plateau (31). As soon as the seams are covered by the lateral shields (4), paths of particles in air possibly contaminating a plurality of contact terminals restrained in passageways of an insulative housing are able to effectively blocked. Therefore, problems either about reliability or circuit open caused by contaminated socket connector is successfully solved.

Abstract: A bridge connector assembly may provide access to signals of a circuit that includes an integrated circuit. The bridge connector assembly may include first and second circuit boards that are mated edge to edge, structural members that maintain the position of each circuit board in relation to each other and connectors to carry signals from edge connectors on one board to corresponding connectors on the second board.

Abstract: A plug connector for mating with a complementary connector includes a mating plug connector and an electrical connector. The mating plug connector includes a housing, a plurality of contacts received in the housing and spaced apart from each other, and a grounding shield surrounding the housing. The electrical connector is perpendicular to the mating plug connector and includes a metal cover, and an electric substrate received in the metal cover and electrical connected to the contacts of the mating plug connector.

Abstract: An L-shaped coaxial connector manufactured with a relatively small number of processes and a method of manufacturing the L-shaped coaxial connector are provided. A housing of the L-shaped coaxial connector is connected to an outer conductor. A bushing is attached to the housing. A socket is attached to the bushing, and the socket is insulated from the housing through the bushing. The housing includes a crimping portion. The crimping portion is bendable, in a state in which a part of the bushing is exposed, so that the crimping portion is in pressed contact with the bushing. The bushing is in pressed contact with the insulating film with a force from the crimping portion. The socket pierces the insulating film with a force from the bushing to connect to a center conductor of a coaxial cable.

Abstract: The present disclosure is directed to conductive connector attachments for use in electrically connecting printed circuit boards to absorbent products such as diapers, training pants, incontinence products, feminine hygiene products, and the like. Specifically, various configurations and methods of securely attaching conventional conductive hook and loop attachments to printed circuit boards are disclosed.

Abstract: A socket connector comprises an insulative housing defining a plurality of passageways and a receiving cavity for receiving an electrical package, and a plurality of contact respectively disposed in said passageways. The receiving cavity comprises a first cavity, and a second cavity smaller than the first cavity. The second cavity is in communication with the first cavity and outer space, the second cavity defining standoffs for positioning the electrical package when the electrical package is inserted into the receiving cavity.

Abstract: An electrical connecting apparatus uses a plurality of contacts each of which includes: a principal portion having an outer face curved and directed to a conductive portion of a base plate and received in a recess and a slit of a housing; a front end portion continuous to the front end side of the principal portion and projected upward from the slit so as to be relatively pressed against an electrode of a device under test; and a rear end portion continuous to the rear end side of the principal portion and located in the recess. The front end portion of each contact is projected upward from the slit by the dimension of the thickness of the front end portion or more than that and has an arc-shaped front end face extend in the longitudinal direction of the slit.

Abstract: A stacked card connector (100) adaptor for receiving cards includes a first electrical card connector (1), a second electrical card connector (2) under the first electrical card connector and a retaining member (4) integral with the second insulating housing. The first card connector includes a first insulating housing (12) received a plurality of first terminals (13). The second card connector includes a second insulating housing (22) received a plurality of second terminals (23). The retaining member defines a plurality of slots (41), said first and second terminals partially passing through the slots.

Abstract: A socket connector, for electrically connecting an IC package and a printed circuit board, comprises a base having a plurality of through holes, a cover mounted on the base and having a top plate, a plurality of wire-shape contacts bent from a metal haulm and an adapter assembled below the base. The contact has a contacting portion inserting into the top plate of the cover, a tail retained to the base and an elastic center portion connecting the contacting portion and the tail, the center portion is located between the base and the top plate of the cover. The adapter receives the tails of the contacts and has a plurality of exposed solder balls electrically connecting the tails.

Abstract: The document discusses, among other things, apparatuses, assemblies, and methods for facilitating the installation of an implantable lead into a subject. In one example, the apparatus includes a housing having a lead terminal passageway on a first end and having an introductory opening on a second end. The lead terminal passageway is adapted to be inserted over a lead terminal end. The introductory opening is adapted to accept a stylet and guide it into a pin lumen. In another example, the apparatus includes one or both of at least one protective terminal contact device and a securing contact device allowing electrical contact to be made with a lead terminal ring or a lead terminal pin without damaging or bridging between such elements of the lead terminal end. The securing contact device is also adapted to mechanically engage the lead terminal pin thereto for facilitating actuation of fixation devices.

Abstract: An electrical connection (1) for electrically interconnecting adjacent first and second metal parts (2, 3) that are electrically insulated from each other, includes clamping elements (30) together with first and second metal inserts (10, 20) that are arranged respectively in first and second openings (4, 5) formed in the first and second metal parts (2, 3), the first and second inserts (10, 20) being secured to each other by the clamping elements (30) so as to be electrically in contact.

Abstract: A conductive band for an electrical connector that includes an elastic metal strap with first and second ends and an array of flexible members extending between the first and second ends. Each of the first and second ends has a terminal lead. A clip is coupled to the terminal leads of the first and second ends.