Abstract: Process for the preparation of abacavir, or its salts or its solvates comprising the step of reacting a compound (IV) where R1 is a (C1-C4)-alkyl radical with anhydrous hydrochloric acid/(C1-C6)-alcohol, and then with tri(C1-C4)-alkyl orthoformate, in the absence of water. The preparation process may include further steps of reacting the compound obtained with cyclopropylamine and subsequently hydrolysis to yield abacavir.

Abstract: A method for managing multicast traffic in a data network, and devices using said method. The hosts store for each multicast group an included source record and an excluded source record, and the network interfaces of the hosts send to the router a message containing information about the included source record and information about the excluded source record. The router also stores for each multicast group an included source record and an excluded source record, and updates them when it receives through its network interface a message from the hosts containing information about an included source list and/or information about an excluded source list. The devices are a router, host equipment and network equipment compatible with the method.

Abstract: Cooking appliance (1A,1B) having an external and control panel (2,2?) equipped with one or more regulating valves, where the rotary regulator organ (6) is equipped with various peripheral openings (16-19) for supplying a flow Q. According to two embodiments (1A, 1B) of the cooking appliance, for the supply of one or another type of gas, NG or LPG, either the control knob (9) or a bezel disk (22) in the external panel (2) are interchangeable on the appliance, being chosen between two different available units, one and the other permitting two different angular position limits A2, A3 of the regulator organ (6) for the supply of a constant flow Qmin through one or another opening (18,19) with calibrated sections, respectively for NG or LP gas. An appendix (14) in the control knob (9) guided in a slide groove (20) on the control panel (2) of the appliance, or a tongue (24) on the bezel disk stopping the rotation of the control knob, determines the travel limit A2 for the supply of Qmin of NG.

Abstract: In one implementation a method of transmitting a file having an advertising portion and a requested portion different from the advertising portion is provided. The method includes receiving a request to transmit the file, via a streaming protocol allowing non-sequential access, transmitting the advertising portion of the file, receiving a request to transmit a portion of the requested portion of the file prior to completing transmitting the advertising portion of the file, completing the transmission of the advertising portion of the file, and transmitting the requested portion of the file. In another implementation a method of transmitting streaming data from a server to the data storage medium of a device having a multimedia player is provided. The streaming data having at least one advertising-sponsored content portion and at least one associated obligatory advertising portion.

Abstract: Optical device that comprises a spatial light modulator and a spectral filter that normally comprise several parts, such that each part of the filter (V; R; A; L) corresponds to at least one part of the modulator. The spectral filter is superimposed to the spatial light modulator such that the transmittance of each part of the filter is coordinated with the phase offset introduced by the corresponding part of the modulator. In one embodiment, the spatial light modulator is a programmable liquid-crystal device. The invention presents several ways in which to coordinate the transmittance of each part of the spectral filter with the programmed time variation of the phase offset introduced by each part of the spatial light modulator, such that each part of the latter receives light at a spectrally filtered wavelength and focuses it in the same plane.

Abstract: A method for managing multicast traffic in a data network, and devices using said method. The hosts store for each multicast group an included source record and an excluded source record, and the network interfaces of the hosts send to the router a message containing information about the included source record and information about the excluded source record. The router also stores for each multicast group an included source record and an excluded source record, and updates them when it receives through its network interface a message from the hosts containing information about an included source list and/or information about an excluded source list. The devices are a router, host equipment and network equipment compatible with the method.

Abstract: A dual fuel vent free gas heater having at least one gas burner with a plurality of gas outlet ports in an upper surface thereof. The gas outlet ports are in flow communication with at least one pilot flame burner. An adjustable fuel injector or at least two fuel injectors feed fuel to the burner providing for introduction of more than one fuel to the burner. Optionally, an oxygen detection system, manual fuel selection control valve, and/or temperature shut off control system may be incorporated into the dual fuel vent free heater.

Abstract: A dual fuel vent free gas heater having at least one gas burner with a plurality of gas outlet ports. The gas outlet ports are in flow communication with at least one pilot flame burner. At least one fuel injector feeds fuel to the burner providing for introduction of more than one fuel to the burner. Optionally, an oxygen detection system, manual control valve, linkage, and/or shut off control system may be incorporated into the dual fuel vent free heater.

Abstract: A system which may be used to replace workover rigs and metallic pipes for the production of hydrocarbon from wellbores uses a non-metallic, substantially continuous, flexible tube comprising a flexible, non-metallic, e.g. resin-based, substantially continuous production tube that can be wellbore deployed and retrieved without the need of onsite rigs. The system's components can be placed inside existing pipes for work in old wells where removal of the existing tube is not economical. The tubes may also be spoolable, thereby increasing installation rates and flexibility. Connectors for the tube may be dimensioned and configured to allow for providing and/or sealing downhole tools to the production tube. In certain embodiments, an onsite power generator will provide a clean alternative to existing diesel burning generators and will typically use a furnace, boiler, steam engine and electrical power generator.

Abstract: Optical remote node (NR) device which is situated at a remote point in a fiber-optic metropolitan or access network, carries out the functions of connecting, and transmitting information between, various sections of the network in a passive manner without a power supply using various optical components which extract the necessary optical signals and optical pumping power from the network to which the remote node is connected, and introduces the optical signals from the sections which it connects into said network, and support equipment which is situated at a point in the network with a power supply, uses the network to provide the pumping power required by the remote nodes and has the electronics needed to carry out functions of monitoring the operation of the remote nodes and regulating their activity.

Abstract: A gas cooking appliance having a plurality of spaced-apart taps situated in fixed and non-moveable locations within the gas cooking appliance, each of the taps having a rotatable operating shaft coupled to an associated control knob situated on a pivoting control panel. The pivoting control panel is connected to a pivot shaft and is pivotal between a first angular position and a second angular position. Each of the control knobs is coupled to its associated tap by a coupling, each of the couplings including a stationary transmission, a pivoting transmission shaft having a first end and a second end and a joint that couples the pivoting transmission shaft to the stationary transmission shaft. The pivot shaft, by means of which the control panel pivots, being situated proximate the coupling joints.

Abstract: The invention is directed to a method of transmitting a file having an advertising portion and a requested portion different from the advertising portion. The method includes receiving a request to transmit the file, via a streaming protocol allowing non-sequential access, transmitting the advertising portion of the file, receiving a request to transmit a portion of the requested portion of the file prior to completing transmitting the advertising portion of the file, completing the transmission of the advertising portion of the file, and transmitting the requested portion of the file.

Abstract: Auxiliary electromagnetic valve for its incorporation into a main valve of a gas servo valve, which comprises a body with an auxiliary outlet conduit connected to an outlet conduit of the servo valve, a pivoting arm that comprises a closure member of a valve seat of the auxiliary outlet conduit, a ferromagnetic armature that closes the magnetic circuit opening the valve seat, and a return means, supported by a plate, that returns the pivoting arm in order to keep the seating closed. The body is configured by means of a peripheral surface fitted to a cavity of the main valve, a lower surface supported against the cavity by means of fitting means, an intermediate transverse surface on which the valve seat is fitted, a transverse perimetral rim upon which the plate is fixed, and an auxiliary hole that connects the valve seat to the outlet conduit.

Abstract: Temperature sensor device inserted into a radiant heater (1) that incorporates at least one heating resistance (2) and is adapted to a glass ceramic cooking hob (4), comprising a film-type resistive sensor element (11) with metal wires (12) for its connection to terminals (18) and a support element (13) that passes through the radiant heater (1), at least in part. The sensor element (11) is inserted into the free end of said support element (13) so that the top and bottom faces are exposed in relation to said support element (13), and the sensor device also comprises an insulating element (14) disposed beneath the sensor element (11), separated from the support element (13) at least in the area in which the sensor device passes through the radiant heater (1).

Abstract: An electromagnetic safety valve that includes a reel, a support that has a first segment that is inserted in the interior of the reel and which acts as a fixed core, a movable core that moves in the interior of the reel, a sealing member connected to one end of the movable core that opens a passage of gas overcoming the opposition of a spring when the valve is energised, and a casing that encloses the reel. The support has a second segment that includes a base upon which the reel is supported, the base including axial through holes for the respective passage of a phase wire and a mass wire. The second segment also includes a coaxial housing wherein a male terminal is inserted.

Abstract: The invention is directed to a probe-type imaging device useful to visualize interior surfaces, e.g., the lumen of blood vessels. Specifically, the probe-type device is particularly useful for direct tissue imaging in the presence or absence of molecular imaging agents.

Abstract: A device and method for controlling a drainage pump of a washing machine. The drainage pump is powered by a synchronous motor that is connected to a mains voltage bus by a switch. During one or more stages of a washing program the switch is operated to apply in each half cycle of the mains voltage a delay time from the zero setting of the mains voltage to cause the motor to operate in a cut-wave mode.

Abstract: The invention is directed to a method of transmitting a file having an advertising portion and a requested portion different from the advertising portion. The method includes receiving a request to transmit the file, via a streaming protocol allowing non-sequential access, transmitting the advertising portion of the file, receiving a request to transmit a portion of the requested portion of the file prior to completing transmitting the advertising portion of the file, completing the transmission of the advertising portion of the file, and transmitting the requested portion of the file.