Abstract: The present invention relates to a flow regulation device for mitigating over travel of a piston in a fluid operated tool. The flow regulation device includes a flow channel through which flows an operating fluid to be supplied to operate the piston within the tool and a movable flow restrictor within the flow channel. The flow restrictor has an internal fluid passageway for regulating the flow rate of the operating fluid being supplied to the tool to operate the piston. The flow restrictor also has a frustoconical portion which mates or seats against a portion of the flow channel as fluid is being supplied to operate the piston. A spring is provided to insure that the frustoconical portion seats against the mating portion of the flow channel. When the piston is retracted and operating fluid is being returned to a supply, the force applied by the spring is overcome and the flow restrictor is moved so that the frustoconical portion is unseated from the mating portion.

Abstract: A precooler for use in a fuel cell system between a thermal reformer and a shift converter includes an atomizing water inlet in combination with a swirling inducing reformed gas inlet which act to increase the resistance time of the reformed gas in the precooler so as to effectively cool same.

Abstract: A plastic article is formed in an injection mold by injecting molten plastic into the injection mold at an elevated temperature, cooling the plastic from the molten condition to a solid condition, and crystallizing a portion of the plastic by slowing down the cooling of said portion.

Abstract: An annular suction valve includes a substantially tubular member having an inner surface defining a valve flow passage having an inlet, a nozzle disposed in the inlet and spaced from the inner surface so as to define an annular passage between the inner surface and the nozzle, the nozzle further defining an interior flow passage and having a nozzle inlet to the interior flow passage; and a power fluid inlet in one of the nozzle and the tubular member for receiving power fluid into the annular passage.

Abstract: Leveling instrument—clamping device for mounting leveling instruments to the tripod platform of a tripod. It is provided with a device plate which can be mounted to the bottom of the leveling system and with a stop provided on the upper side of the tripod platform, as well as a clamping device positioned at a distance from the stop with the device plate being mounted removable on the tripod platform via the stop and the clamping device. This allows a quick and secure mounting of leveling instruments by few operations.

Abstract: A method for performing Earth altimetry comprising the steps of: receiving by an upward-looking antenna onboard a platform above the Earth surface, direct signals having at least two different carrier frequencies transmitted by GNSS satellites in view of the upward-looking antenna, receiving by a downward-looking antenna onboard the platform signals reflected by the Earth surface and having the at least two different carrier frequencies, comparing carrier phases of the direct signals and received reflected signals, at the carrier frequencies, and determining from the phase comparisons a surface height.

Abstract: The invention proposes a step for escalators comprising a tread and an arcuate skirt adjoining the tread, it being the case that the tread and the skirt have reinforcing ribs and/or reinforcing spars arranged on an inner surface for reinforcing purposes, and it being the case that a connecting structure for connecting the step to a drive arrangement is provided between a front edge region of the tread, as seen in the direction of travel, and a remote edge region of the skirt, it being possible for the step to be produced as a light-metal casting, and it being the case that the outer surface of the tread and of the skirt is formed from plastic by injection moulding.

Abstract: The present invention relates to a DRAM structure for reducing row latency for an irregular row access and for improving the effective bandwidth by varying a DRAM cell core structure, specifically, to a pipeline structure of a memory for a fast row cycle, which is different from a structure used in a conventional fast cycle RAM (FCRAM) and is established by modifying a cell core access in the channel structure of a virtual channel memory (VCM) and by introducing a row buffer and a latch to a decoder.

Abstract: A similar polygon, which is larger than a basic polygon and has a similar shape to the basic polygon, is disposed to face the obverse surface of the basic polygon. A different texture from that of the basic polygon is pasted on the similar polygon. Then, a polygon image including the basic polygon and the similar polygon is displayed. When the polygon image is viewed from a certain viewpoint, the similar polygon is seen behind the basic polygon in a ring-like form, which serves as an edge of the basic polygon. As a result, a three-dimensional image using polygons can be provided with an edge.

Abstract: A portable game machine has an input unit and a display which are accommodated in a portable housing. Gauges are composed of a plurality of small areas sequentially arranged in predetermined directions. In the housing, a game processor is provided which selects one of a plurality of preset game elements based on an operation input by a game player and which displays information on game progress on at least one of the gauges.

Abstract: A recess (2) forming a pouring gate (2) is provided in a first half (1a) of the mold (1) so as to open out in the parting face (4) in a housing (5) having a top opening (6) in its top portion. A second recess (8) is provided in the second half (1b) of the mold (1) with an opening (9) in the parting face (4) of dimensions smaller than the corresponding dimensions of the housing. The two mold halves (1a, 1b) are assembled together on the parting face (4) and a filter (12) adapted to filter molten metal is inserted into the housing (5) substantially vertically through the top opening (6) thereof.

Abstract: An optical igniter includes a pyrotechnic substance and an optical fiber, one end of which is connected to a source of laser radiation and the other end of which is inserted in a connector. A removable mechanical connection is provided between the optical fiber connector and the pyrotechnic substance. A glass rod between the optical fiber connector and the pyrotechnic substance has its axis aligned with the axis of the optical fiber and is made of graded index glass in one part or two coaxial parts. It is in contact with the pyrotechnic substance and with the end of the optical fiber. Laser radiation from the end of the optical fiber passes through the glass rod and is focused onto the face of the glass rod in contact with the pyrotechnic substance.

Abstract: Fluid and fuel delivery systems reducing pressure fluctuations and engines including such systems are disclosed. Such systems use a conduit that attenuates pressure fluctuations. Preferably, the conduit attenuates pressure fluctuations by reflecting a portion of a pressure wave within the fluid flow so that reflected pressure waves within the flow interfere with incident pressure waves within the flow, thereby reducing the pressure fluctuations in one embodiment, such a conduit may be formed as a quarter wave stub, in line with the fluid flow. Advantageously, exemplary of the invention, hoot noise in an engine may be reduced by damping pressure fluctuations in the fuel delivery system to the engine.

Abstract: The present invention is directed to a combustor/turbine successive dual cooling arrangement in which the combustor has a one-piece hot combustor wall and front and rear cold combustor walls, and cooling air is forced under pressure through perforations in the cold combustor walls and impinges on the annular front and rear sections of the hot combustor wall for the backside cooling of the hot combustor wall. The exhaust combustor backside cooling air is directed to gain access to the hot end of the engine, that is, the turbine section, to cool the turbine components. The combustor/turbine successive dual cooling arrangement according to the present invention enables all the air typically used to cool the hot end of the engine downstream of the combustor, to be used as combustor backside cooling as well, to significantly reduce the amount of air needed for combustor and turbine cooling.

Abstract: An artificial bone promotive of osteoanagenesis comprising a calcium phosphate cement and a linear polyphosphate, wherein the calcium phosphate cement comprises &bgr;-tricalcium phosphate, monocalcium phosphate, calcium sulfate hemihydrate and other additives. The artificial bone is non-toxic to the body chemically stable, and has an excellent biodegradability. The artificial bone may be applied as substitutes for bone cements, allografts and autografts.

Abstract: A non-carcinogenic corrosion inhibiting additive includes an anodic corrosion inhibitor and a cathodic corrosion inhibitor.

Abstract: The invention concerns a catalytic combustion afterburner made of porous material, comprising in its lower part a substantially axial cavity for receiving a taper designed to convey to the burner a combustible liquid, and in its upper part an annular peripheral zone bearing a catalyst and enclosing a central zone without catalyst forming a vaporizing zone. The afterburner comprises in its upper part an open duct, communicating the cavity upper part with the outside air.

Abstract: The present invention relates to a method for-fabricating an integrally bladed rotor which comprises providing a hub section, preferably formed from a titanium based alloy, and welding an airfoil, also preferably formed from a titanium based alloy, to the hub section. The method further comprises partially aging and cooling the hub section prior to welding and aging the airfoil and the weld joint between the airfoil and the hub section subsequent to welding. The post welding aging step is preferably carried out using a novel encapsulated local airfoil heating device having a plurality of heating elements woven into a jacket made from a high temperature cloth material. The method of the present invention may also be used to repair integrally bladed rotors.

Abstract: A paste formulation for dental use, a paste injector, and a system for detecting paste filling are disclosed. The paste formulation includes electric conductive material. The present invention also discloses the system for detecting paste filling comprising a paste injector containing electric conductive paste and an electric conductive member for electrically connecting the electric conductive paste to an external electrode, a current detector for detecting the current flowing through the electric conductive paste held in the container portion, and a current display device for indicating the current flowing through the electric conductive paste.