Abstract: A continuous impact-driven fastener pack made of ultra-high strength plastic composite materials, for example, thermoplastic or thermoset materials for use in standard impact driving fasteners machines. The individual fasteners have sufficient compressive strength and flexural modulus such that the fastener may be used with commodity woods for construction, furniture making, or for building boats. Further, this fastener pack is non-corrodible and provides plastic fasteners having a length/diameter ratios of a working nail or staple, e.g., heretofore unavailable.

Abstract: A device for rounding and pressing book blocks with a conveying device for the book blocks. The device includes rounding rollers, pressing jaws or similar clamping elements, which are displaceable relative to one another, which act to receive the book block and act with a predefined force upon the book block. The device automatically adjusts the clamping elements to different formats of the book block and, in the event of deviations in the book block thickness, the clamping elements are displaceable relative to one another via articulately connected levers. The levers function to clamp the book block via an operating cylinder acting upon the free ends of the levers and automatically aligning the book block. The point of rotation of the levers being displaceably mounted in a guide aligned with the center of the conveying device of the book block.

Abstract: A vacuum clean box 30 includes a box body 31 having a side aperture 32 and a small hole 33 for intake/exhaust, a side lid 34 for closing the side aperture 32 by a pressure difference between inside and outside thereof, and an additional lid 35 for similarly closing the small hole 33 for intake/exhaust. The vacuum clean box 30 is connected to a gate aperture 42 of a clean room 40 and a vacuum changer 50 evacuates a hermetically closed space outside the box body including the additional lid 35 to cancel the pressure difference between inside and outside of the additional lid 35 and then opens the small hole 33 for intake/exhaust. After the inside of the vacuum clean box 30 is turned into the atmospheric pressure through the small hole 33 for intake/exhaust, the side lid 34 is drawn into the clean room 40 to make communication between the inside space of the vacuum clean box and the inside of the clean room 40, and then objects to be transferred are transferred between the vacuum clean box and the clean room.

Abstract: A parking installation comprising a pallet on which a vehicle is loaded, wherein a guide member is formed on a lower surface of the pallet along its longitudinal center line; a carrier for loading the pallet thereon, the carrier traveling along a traveling rail extending across parking rooms; travel rollers mounted at both ends of the carrier for rolling on the traveling rail; a first driving motor connected to a shaft of the travel roller for supplying a driving force to rotate the travel roller; a pallet transferring unit mounted rotatably to both ends of the carrier, the unit being in contact with the guide member and transferring the pallet longitudinally; and a pallet drawing/pushing assembly mounted adjacent to the pallet having a pivotable arm pivotable along a predetermined arc, the pivotable arm of the pallet drawing/pushing assembly either drawing a stopper formed on a lower surface of the pallet such that the guide member of the pallet comes in contact with the pallet transferring unit or pushing t

Abstract: Trays for temporary reception of accumulations of parallel cigarettes are being introduced into and withdrawn from open-sided containers for groups of trays. The containers are provided with partitions defining tray-receiving compartments in a predetermined distribution, and the trays are assembled into groups wherein the trays are arrayed in such a way that they can be pushed, as a unit, into an empty container whereby each tray of the array enters a discrete compartment. Analogously, a set of mobile suction-operated devices is used to simultaneously withdraw an entire group of arrayed trays from the compartments of a filled container. The introduction of groups of filled or empty trays into containers can take place at a first level, and the evacuation of groups of filled or empty trays from filled containers can take place at a different second level. The second level can receive filled trays from a tray filling unit and the first level can serve for delivery of empty trays to the tray filling unit.

Abstract: A new and improved shopping cart collection vehicle, system, adapter, or device is disclosed for use in collecting, transporting, and storing various types of carts, carriers, or the like. The vehicle may additionally include hydraulic lifters, lights, a slip clutch, an extendable carrying arm, carrying boom, a carrying ram, secondary support rods, rear cart retrieval, holding pins, holding bumps, holding numbs, rollbars, a windshield, an operator weather cover, removable cover, doors, side windows, and back window, and/or the like. In another embodiment of the invention, a cart trailer includes a floor, side rails, loading ramp, holding pin, trailer hitch, and chain lock connector. An improved method of collecting shopping carts is disclosed wherein a shopping cart collection vehicle is used to pickup the shopping carts and return them to the store.

Abstract: In many types of construction machines, the frame assembly comprises a rear frame that supports the engine and the majority of the drive train components and a front frame that supports the work implement and related structure. In this type of machine, the two frames are normally pinned together and the front frame is articulated with respect to the rear frame by a pair of steering cylinders to provide steering for the machine. In order to provide the required structural support for the components of the work implement and to accommodate the steering forces, the front frame is necessarily quite large. The present invention provides a front frame (12) structure that includes a pair of main side plates (62, 64) that are positioned a preselected distance (W) from one another and mount a lift arm assembly (30) therebetween to minimize the overall width of the frame assembly. The forward end portion of the front frame assembly (12) has a preselected height (H) that permits the front frame to have a low profile.

Abstract: When operating a work vehicle such as a backhoe or wheel loader, it is frequently desirable to utilize auxiliary work equipment with the vehicle such as a pallet fork and a loading bucket. In the course of such operation, it is generally necessary to move the vehicle from one site to another, which requires movement of the auxiliary work equipment as well as the vehicle. The present invention provides a convenient coupling system for securely attaching a second work implement, such as a loading bucket, to a first work implement, such as pallet forks, for transportation purposes so that the connected auxiliary work equipment can be readily transported by the work vehicle from site to site, which is especially important when moving the vehicle over uneven and rough ground or surfaces.

Abstract: A counter-stacker (10) for tortillas includes a housing (12), a perforated belt (16) within the housing (12), the perforated belt (16) adapted and arranged to receive incoming tortillas (42) and form vacuum-lifted tortillas (42A). At least one stacker belt (26) is rotatably mounted within the housing (12). A vacuum housing (28) is sealably mounted to the housing (12), the vacuum housing (28) connected to a means of producing vacuum (30). At least one stacker canister (32) is positioned under a rear end of the perforated belt (16). A bottom perforated plate (36A) has a plurality of bottom perforated plate openings (36AA) therethrough positioned within the perforated belt (16). A top perforated plate (36B) is slidably positioned on top of the bottom perforated plate (36A), the top perforated plate (36B) comprising a plurality of complimentary positioned top perforated plate openings (36BA).

Abstract: A container, such as a transfer trailer, a roll-off container, or other container that can be transported, has expandable side walls. The walls are hydraulically, or otherwise, forced outward to increase the inside width dimension of the container. A loading device, such as a garbage route collection truck or other similar vehicle can then be backed into the container whereby the solid material waste or other commodities can be directly loaded into the container. Once the container has been loaded, the side walls can be retracted to their original positions, such that the container maintains its standard regulated width dimension.

Abstract: A blank feeder includes a blank stack with blanks inclined forwardly in a magazine section and rearwardly in a discharge section so the stack has two effective top ends, one for supply and one for feeding. Blank inclination is reversed intermediate the stack ends without separating blanks in the stack during inclination reversal. Methods and apparatus are disclosed.

Abstract: An environmentally non-intrusive multiple turbine unit for adjustable deployment in water. The turbines are captured in a shroud having an integrally formed augmentor ring and ballasting member to improve efficiency. The multiple turbine arrangement effectively counteracts the rotational counter-torque of individual turbines, thereby enabling stable deployment of the unit without requiring rigid stabilizing structures.

Abstract: The present invention relates to a friction vacuum pump having at least one turbomolecular pump stage (2) joined at its pressure side to a screw pump stage (4). In order to improve the pump properties it is proposed that a filling stage (3) be arranged between the turbomolecular pump stage (2) and the screw pump stage (4) that has blades (13) whose length corresponds at the suction side to the active length of the blades at the pressure side of the turbomolecular pump stage (2), and at the pressure side to the depth of the suction-side region of the screw (14) of the screw stage (4).

Abstract: An annular vane diffuser is disposed within a compressor housing of a turbocharger and employs a wave-type compression spring interposed between the vane diffuser and a backplate to provide a desired pressure loading on the vane diffuser to urge the vanes against the wall of the compressor housing forming one side of the diffuser. The vane diffuser constructed in this manner maintains contact with the compressor housing during turbocharger operation as it moves axially relative to the backplate, thereby providing improved diffuser efficiency.

Abstract: Centrifugal pump with a pump chamber (18) housing a radial impeller (20) and aspiration port arranged coaxially with the radial impeller, and at least one ventilating conduit (26) that leads from the inner radial area of the pump chamber to the outside, wherein the outer circumferential edge of the pump chamber (18) is fitted with interference contours (32) that are essentially directed tangentially to swirl the liquid flow.

Abstract: Brush seals are employed on steam turbine rotors without the risk of causing thermal rotor bowing and without compromising the sealing performance. In one form, a groove in the rotor has an insert in frictional contact with the brush seal. The non-uniform distribution of heat due to frictional contact between the brush seal and proud portions of the rotor is dissipated within the insert such that adjoining rotor portions are substantially uniformly heated without causing thermal bow. In a further form, a groove or grooves are provided in the rotor surface adjacent to the brush seal and maintain non-uniform heat distribution locally in the rotor without causing thermal bow of the rotor. In another form, a land projects radially outwardly of the rotor surface in contact with the brush seal. The non-uniform distribution of heat due to frictional contact between proud portions of the land and the brush seal dissipates into a uniform distribution of heat in the rotor proper to avoid thermal bowing.

Abstract: A pair of air deflectors attached to the outlet opening of a blower assembly housed within a ventilator housing to accommodate multiple size outlets in the ventilator housing of a ventilation system. The air deflectors include a front portion for attachment to a sidewall flange extending outwardly from the outlet opening of the blower assembly, a transition portion extending rearwardly and inwardly from one side of the front portion, and a flange extending rearwardly from the transition portion for attachment to a sidewall of the blower assembly. The air deflectors attached to the outlet opening of the blower assembly increase air flow, decrease air turbulence and decrease noise within the ventilation system.

Abstract: A helicopter rotor blade includes a main airfoil body (12) and a movable control flap (3) incorporated in the trailing edge profile of the airfoil body. The flap (3) is movably connected to the main airfoil body (12) by a flexibly bendable junction element (4), and is actuated by a piezoelectric actuator unit (5) via a push/pull rod (6) and a lever arm (7), whereby the control flap is deflected relative to the main airfoil body. The junction element (4) is preferably a continuous integral fiber-reinforced composite component having a flexible bending portion (42) with a reduced thickness in comparison to the adjoining portions, whereby the reinforcing fibers extend continuously through the joint in the direction of the connection between the main airfoil body and the flap.

Abstract: In a cooling system for the leading-edge region of a hollow gas-turbine blade, a duct (10) extends inside the thickened blade leading edge (5) from the blade root (1) up to the blade tip (2). The duct (10), via a plurality of bores (9) made in the blade leading edge, communicates with a main duct (3), through which the cooling medium flows longitudinally, and the flow through the duct (10) occurs longitudinally over the blade height, and the duct (10) is formed with a variable cross section. The cross section of the duct (10) increases continuously in the direction of flow of the cooling medium from the blade root up to the blade tip. In the case of blades having a cover plate (11), the duct (10) merges at its top end into a chamber (12), which is mounted below the cover plate and is in operative connection with a pressure source, the pressure of which is lower than the pressure in the main duct.

Abstract: A turbine blade includes an airfoil having a leading edge flow chamber disposed behind a leading edge in flow communication with an isolation flow channel disposed therebehind. The isolation channel is bounded on opposite sides by a pair of side flow channels.

Abstract: A repaired turbine rotor wheel includes a rotor wheel body having an outer rim. A forged ring is disposed about the outer rim and welded to the wheel body. A dovetail is formed in the ring, the arcuate weld between the ring and the wheel body being located radially inwardly of the dovetail.

Abstract: A rotor blade (1) comprises a main blade (2) having a substantially fixed chord length (C), a front tip blade (3) having a chord length (C1) smaller than that of the main blade and connected to the main blade so that a front edge (3a) thereof is continuous with a front leading edge (2a) of the main blade, and a rear tip blade (4) having a chord length (C2) greater than that of the front tip blade and connected to the main blade so that a trailing edge thereof is continuous with a trailing edge of the main blade. The blade incidence angle (&thgr;1, &thgr;2), the washout angle (&dgr;1, &dgr;2) and so on of at least either the front tip blade or the rear tip blade, the respective lengths (R1, R2) of the front tip blade (3) and the rear tip blade (4), and the anhedral angle (&eegr;) of the rear tip blade (4) are determined so that tip vortices generated by the front tip blade (3) and the rear tip blade (4) cancel each other to suppress BVI noise.

Abstract: A novel concept for a propeller blade configuration incorporates the model of the natural wave behavior. The leading edge of the propeller blade is parallel to the trailing edge, but offset by a given amplitude. The surfaces between the leading and trailing edges are rounded so as to promote proper fluid sheet formation along the surface and to reduce undesirable vortice formation. Best results are obtained by modeling the surfaces along a sine or tangent function.

Abstract: A rotary device (11) has a first rotor (12) rotatable about a first axis and having at its periphery a recess (14). A second rotor (13) is counter-rotatable to said first rotor (12) about a second axis, parallel to said first axis, and has a radial lobe (15). The first and second rotors (12,13) are coupled for rotation and are intermeshed such that, for a portion of the rotation of the rotors (12,13), there is defined between the first and second rotors (12,13) a transient chamber of volume which progressively decreases on rotation of the rotors (12,13). Means (27,28) are provided for monitoring the clearance between the rotors (12,13). Means for adjusting the clearance between the rotors (12,13) are provided.

Abstract: A device for injecting a liquid in a compressed gas contains a reservoir for the liquid, sealed by means of a cover which is provided with a passage for the gas in which opens a liquid channel which is connected to the reservoir. The passage is arranged with a jet pipe in the vacuous part from where the liquid channel discharges. The passage, seen in the flow direction, is divided in two separate gas channels by means of a wall, extending from before the place where the liquid enters the passage up to the end of this passage, such that the liquid only enters in one of the two gas channels.

Abstract: A reciprocating pump having an active feedback system is provided. The reciprocating pump includes a reciprocating pump having a pump chamber with a rod reciprocally movable along a longitudinal axis of the pump chamber, with the rod including a ferromagnetic material. An induction coil disposed around the rod wherein relative axial movement between the inductance coil and the ferromagnetic material of the rod varies the inductance of the induction coil. Also provided is a reciprocating pump having an active feedback system in which the rod has an electrically conductive, diametrically tapered portion. A linear displacement sensor is disposed next to the tapered portion which induces a current in the tapered portion and generates an output voltage proportional to a relative position between the linear displacement sensor and the tapered portion.

Abstract: A system and method that permits fluids, such as petroleum, to be pumped from two separate zones. A submergible pumping system, including a submergible electric motor driving a submergible pump, is deployed in a wellbore. The submergible pump intake is located in a first zone to intake a fluid. The fluid is discharged through a fluid-powered pump, such as a jet pump. The jet pump is coupled to a fluid intake disposed in a separate zone within the wellbore. The single system can be utilized to pump fluids from two different zones.

Abstract: In a swash plate type compressor in which a shoe (3) is placed between a swash plate (5) and a reciprocal piston (2), the shoe has a convex curved surface (32) having a specific portion extending along an oblate spheroid defined by a predetermined ellipse. The piston has a concave spherical surface (2a) adaptable to the convex curved surface. The specific portion has a ring-like contact portion which is in contact with the concave spherical surface around a minor axis of the predetermined ellipse to surround a portion spaced from the concave spherical surface. In addition, the shoe has a sliding surface (31) slidable along the swash plate.

Abstract: A dosing pump for dosed liquid conveyance that includes a suction valve built into a suction tube coming out of a suction container, a pump chamber having a displacement volume that can be modified by means of a pumping member, a pressure valve leading to a dosing tube, a deaeration device arranged on the top end of the tube and comprising a return valve and a flow-actuated deaeration and bypass valve built into a deaeration valve having response characteristics dependent upon the state of aggregation of the liquid contained therein. The flow-activated deaeration and bypass valve is open when idle, only closing when pressure is raised in the presence of liquid in the valve, and is provided with a membrane. Faulty pump operation is substantially reduced when the membrane is connected to a remote closing member which closes the deaeration tube when the membrane is moved. A return valve is arranged between the membrane and the closing member.

Abstract: This invention relates to an oil pump apparatus which comprises an oil pump housing, a rotor rotatably located in the oil pump housing, the rotor forming a first set of pockets having a capacity increasing toward a rotating direction of the rotor and a second set of pockets having a capacity decreasing toward the rotating direction of the rotor, a plurality of suction ports connected with the first set of pockets, each of the suction ports being isolated from other adjacent suction ports, a discharge port connected with the second set of the pockets, and a control valve which includes a valve member, an urging member for urging the valve member and an urging member's chamber for disposing the urging member, the control valve being operatively positioned to control fluid flow through the plurality of the suction ports and the discharge port, and the control valve is operatively connected to select between a first condition in which the control valve connects with the suction ports and a second condition i

Abstract: An air pump includes an outer casing and a pump unit provided in the outer casing. The pump unit includes a diaphragm, a diaphragm-driving unit for driving the diaphragm, and a pump casing to which the diaphragm is attached. The pump casing has an inside space which is divided into an air-inlet side chamber communicating with an inside space of the diaphragm via an inlet opening with an inlet valve and an air-outlet side chamber communicating with the inside space of the diaphragm via an outlet opening with an outlet valve. The pump unit further includes a silencing unit provided in at least one of the chambers. The silencing unit includes an inner pipe having an opened tip end and an outer pipe having a closed bottom end.

Abstract: A motor-driven radial piston pump assembly has its radial piston pump supported by a base section on one side thereof which likewise supports an electric motor for powering the pump which is supported on that same side coaxially. The electric motor and a hydraulic tank are directly connected to the base section, the motor being surrounded by a cylindrical-shaped motor housing forming an inner wall of the tank and being sealingly connected to the base section, the motor housing being closed by a cover on its outer end opposite the pump. Such arrangement is compact in that the electric motor is simply positioned directly on the base section and is almost completely surrounded by the hydraulic tank such that the separate motor housing of the electric motor can be of simple and light weight construction.

Abstract: A double diaphragm pump driven by alternating charges of air includes air chambers and pump chambers to form pump cavities. Diaphragms extend across the pump cavities and are held by their periphery between the mating pump chambers and air chambers. Elbows are coupled with the pump chambers at the inlets and outlets thereof with each of the elbows being identical and including a valve cavity to receive a ball valve. Each ball valve includes a seat with a threaded portion accommodated in either the elbow when the elbow is used at the inlet or the pump chamber at the outlet. The ball valves further include a ball and a ball cage. The components are sized to insure that when the ball is fully unseated, the minimum cross-sectional flow area is at the pump outlet. Sealing surfaces are associated with the valve seat and the associated structure to receive a compressible seal. Annular bolting flanges allow components to be reoriented for particular applications.

Abstract: A bistable electrostatic actuator with pneumatic or liquid coupling. The actuator has enclosed metallic electrodes. It can be used for a microvalve or micropump. The actuator has buckled membrane sections in pairs and curved substrate electrodes, locally associated with said membrane sections.

Abstract: A fan assembly adapted to be installed into a standard expansion slot of a microcomputer. The assembly comprises a frame, sized to fit into the standard expansion slot, including attachment members adapted to permit attachment of the frame into a standard expansion slot and defining an air passageway through the frame, the air passageway having a first opening coincident to the attachment members and having a second opening positioned away from the attachment members. Additionally, an electric fan is mounted in the frame and positioned to move air through the air passageway from the first opening through the second opening. Finally, an electrical conductor and connector assembly is adapted to be connected to a source of electrical power and to transmit electrical power from the source of electrical power to the electric fan.

Abstract: A squeeze type pump that transfers slurry via an elastic tube by squeezing the elastic tube with pairs of rollers to elastically deform the tube by moving each pair of squeezing rollers. The elastic tube has an outer diameter, an inner diameter, and a thickness. A ratio of the inner diameter to the outer diameter is set within a range of 0.56 to 0.72, and the thickness is set within a range of 23 to 35 mm.

Abstract: A piston pump comprising at least one working space, which is surrounded by a cylinder and which is adapted to be varied by a piston arranged in said cylinder, and at least one inlet valve as well as at least one outlet valve, said valves being lifting valves and being adapted to be controlled and driven by a control and drive means. In order to provide a piston pump which can be cleaned more easily and which includes the smallest possible number of dead spots, a first teaching according to the present invention suggests that, when closed, the inlet valve should be located nearer to the working space than when it is open. Alternatively, the underlying technical problem is solved according to a second solution of the present invention by the feature that the valve surface of the inlet and/or outlet valve(s) facing the working space merges without any steps with the inner surface of said working space at the closed position of the valve or of each valve.

Abstract: A shot piston device for molten plastic material with a force-operated piston guided in a cylinder provided with an inlet and an outlet, wherein valve arrangements ensure that the cylinder is filled during the return stroke of the piston and the cylinder content is discharged during the work stroke of the piston. The piston is fixedly connected by a drive bolt to a differential piston arranged upstream or in front of the piston. At least in its rearward extreme position, the differential piston covers and closes the outlet arranged in the corresponding differential cylinder. The circumference of the piston has at least one groove located underneath the inlet and extending from the end face of the piston facing the differential piston. The length of the groove is shorter than the length of the piston. A closing ring is arranged so as to be axially slidable on a cylindrical portion of the drive bolt arranged in front of the end face of the piston facing the differential piston.

Abstract: A check valve module includes a body having a first fluid communicating surface and a second fluid communicating surface, and two one-way check valves in the body controlling flow between the first and second surfaces. One of the valves permits flow from the first surface to the second surface, and the other valve permits flow from the second surface to the first surface. The body also has an outer sealing surface between the first and second fluid communicating surfaces.

Abstract: An hydraulic conveying device, in particular for conveying diesel fuel for an internal-combustion engine in motor vehicles, with a housing provided with at least one conveying chamber as well as a displacement unit rotor arranged in the conveying chamber. Rotation of the displacement unit forms pump chambers with varying volumes by means of which a fluid is conveyed from a suction connection of the conveying device to a pressure connection of the conveying device. The conveying devices includes a screen or wall with openings for retaining a quantity of the fluid to be conveyed in the conveying chamber when a supply of fluid by way of the suction connection is interrupted.

Abstract: The invention relates to a scroll-type compressor which will not exert an undesirable influence on a power source of a rotation shaft, even if seizing occurs between an orbiting scroll member and a fixed scroll member. A power transmission mechanism P is provided between a rotation shaft 7 and an eccentric drive pin 25 for transmitting power to an orbiting scroll member 14. An inner wall of a bore of a closed ended cylindrical member 40 with an eccentric drive pin 25 protruding from a base end thereof is formed in the height direction of the cylinder with a plurality of grooves 44 of semi-circular cross-section. Moreover, a cylindrical resilient roller 43 is centrally provided on the closed end with a height approximately the same as that of the closed ended cylindrical member 40. Rollers 42 are provided so as to be inscribed in each groove 44 and so as to come into contact with an outer peripheral surface of the resilient roller 43.

Abstract: A unique bearing system for particular use in scroll compressors includes a pair of spaced tapered portions. Upon misalignment of the shaft, the tapered portions contact the bearing and provide surface contact between the shaft and the bearing. This allows the bearing to more easily distribute the loads that are placed onto the bearing during shaft misalignment.

Abstract: A scroll compressor assembly including a first scroll device having a first involute wrap element projecting from a first substantially planar surface, a second scroll device having a second involute wrap element projecting from a second substantially planar surface and a third surface facing oppositely the second surface, the first and second scroll devices adapted for mutual engagement with the first involute wrap element projecting toward the second surface and the second involute wrap element projecting toward the first surface, the first surface positioned substantially parallel with the second surface, whereby relative orbiting motion of the first and second surfaces compresses fluids between the involute wrap elements, a first source of a first fluid under a pressure intermediate suction pressure and discharge pressure and located between the first and second scroll wrap elements, a frame partly defining a chamber containing a quantity of a second fluid under pressure, and a valve in fluid communicatio

Abstract: A quiet, inexpensive pump especially adapted for transporting fluid having particulate matter entrained therein comprises a one-piece housing having a chamber therein with an epitrochoidal planform satisfying the equation: x=(a+b)·cos(t)−c·cos((a/b+1)·t), and y=(a+b)·sin(t)−c·sin((a/b+1)·t), x and y being plotted from a center of said chamber, wherein 0≦t≦2&pgr;, a/b is an integer defining the number of lobes of said chamber, and b/c=2. A stator gear at the center of the chamber has (a/b)·n teeth, wherein n is an integer. A one-piece rotor, with a generally polygonal planform having a/b+1) curved sides, rotates eccentrically within the chamber. Apexes of said rotor are spaced from walls of said chamber to maintain a clearance between said apexes and said walls as said rotor rotates in said chamber, for permitting fluid flow through said clearance.

Abstract: Disclosed is a yarn-forming filament cooling apparatus mainly including a stand-up air compartment defining a cooling air channel and a quick-cooling air-converge compartment located above the cooling air channel. Inner tubes are provided in the air-converge compartment corresponding to filament guiding ports provided on a top of the cooling air channel. Each inner tube is provided on a circumferential surface with a plurality of throttle pores, such that when filaments are directed to pass filament guiding ports and inner tubes at high speed, air flowing through the cooling air channel is radially drawn into inner tubes to cool the filaments in all directions while the filaments keep moving forward at full speed. Meanwhile, cooling air is supplied into an upper portion of the air-converge compartment in horizontally opposite directions without producing lateral resistance to the moving filaments. Whereby, high yield rate of yarns with stable quality can be achieved.

Abstract: A golf ball mold includes a pair of mold sections which are removably mated along a parting line to define a spherical cavity by their concave surfaces which are provided with a plurality of dimple-forming projections. Some dimple-forming projections are located across the parting line, and molding material injecting gates or fin-forming pits are located near the respective projections. After a seamless golf ball having dimples on the parting line Is molded, any abrasion of the dimples on the parting line can be effectively avoided in the subsequent step of grinding off the fins and burrs.

Abstract: An apparatus for manufacturing composite parts produced by resin transfer molding (RTM) is configured to operate in controlled flow-rate mode or controlled pressure mode to use the RTM technique for manufacturing large-sized composite parts with a low fiber content. In both modes, control is by means of a fuzzy logic control card. In controlled flow-rate mode the resin is injected alternately by two injection cylinders (40a and 40b) controlled by motors whose speed is controlled. In controlled pressure mode the resin is injected directly from resin supply vessels (16) subjected to pressure controlled by an air regulator (30).

Abstract: Apparatus for making two component fibers or continuous filaments which includes a pre-die plate having first openings through which a component flows to aligned second openings in a die juxtaposed the pre-die plate, and a flexible tube member extending from the first openings into the second openings to accommodate any misalignment of the first openings relative to the second openings without adversely affecting the flow of the two fiber components.

Abstract: Apparatus for the expansion and/or heat treatment of oleo resinous material of the type which includes a tubular housing having a rotatably driven screw for conveying material to be treated towards the outlet end of the tubular housing. An outlet discharge device is adjacent the outlet end of the housing for providing for the discharge of the material from the outlet end. The outlet discharge device includes a main ring attached to the housing at the outlet end. The head in the preferred embodiment has a plurality of teeth and depressions around the periphery of the head and the main ring also has a plurality of matching teeth and depressions in the inner circumference thereof. Alternatively, the peripheral face of the head and the inner circumference of main ring may be without depressions and teeth, but instead may respectively be in the form of a continuous face.

Abstract: The present invention includes a filtration apparatus for an injection molding machine where the injection molding machine includes a screw housed within a bore for generating molten polymer. A tip member extends axially from the screw. The tip member has radially extending upstream and downstream flanges positioned axially apart from each other. A filter encircles the tip member and is capable of filtering the molten polymer. An annular ring member encircles the tip member and is slidably positioned within the bore between the upstream and downstream flanges. The ring member is capable of sliding between the flanges for directing the molten polymer through the filter or preventing back flow of the molten polymer past the upstream flange.