mhurhangee/ep-ind-claims huggingface dataset:
A static transfer switch, comprising: a preferred input terminal configured to receive electric power from a preferred voltage source; an alternate input terminal configured to receive electric power from an alternate voltage source, where the electric power from the preferred voltage source and the alternate voltage source has a sinusoidal waveform oscillating between a positive value and a negative value; a load terminal arranged to electrically couple to a transformer; a first switch arrangement electrically connected between the preferred input terminal and the load terminal, wherein the first switch arrangement includes one or more semiconductor switches; a second switch arrangement electrically connected between the alternate input terminal and the load terminal, wherein the second switch arrangement includes one or more semiconductor switches; and a controller configured to monitor operating parameters of at least one of the preferred voltage source and the alternate voltage source, and operates to selectively couple one of the preferred voltage source or the alternate voltage source to the load terminal in accordance with the monitored operating parameters, characterized in that the controller is interfaced with the semiconductor switches and, upon detecting an interruption of electric power at the load terminal, controls conductive state of the semiconductor switches in a startup mode such that amplitude of the voltage at the load terminal is set to a value substantially less than a peak value of the sinusoidal waveform and increases incrementally to the peak value. a preferred input terminal configured to receive electric power from a preferred voltage source; an alternate input terminal configured to receive electric power from an alternate voltage source, where the electric power from the preferred voltage source and the alternate voltage source has a sinusoidal waveform oscillating between a positive value and a negative value; a load terminal arranged to electrically couple to a transformer; a first switch arrangement electrically connected between the preferred input terminal and the load terminal, wherein the first switch arrangement includes one or more semiconductor switches; a second switch arrangement electrically connected between the alternate input terminal and the load terminal, wherein the second switch arrangement includes one or more semiconductor switches; and a controller configured to monitor operating parameters of at least one of the preferred voltage source and the alternate voltage source, and operates to selectively couple one of the preferred voltage source or the alternate voltage source to the load terminal in accordance with the monitored operating parameters, characterized in that the controller is interfaced with the semiconductor switches and, upon detecting an interruption of electric power at the load terminal, controls conductive state of the semiconductor switches in a startup mode such that amplitude of the voltage at the load terminal is set to a value substantially less than a peak value of the sinusoidal waveform and increases incrementally to the peak value.
A process for converting natural gas byproducts to synthetic fuel, comprising: - providing a source of natural gas containing byproducts, wherein the byproducts comprise ethane, propane, butane and pentane plus; - extracting byproduct fractions consisting of propane and/or butane from said natural gas; and - converting a feedstock consisting of the extracted propane and/or butane in a fuel synthesis circuit to a synthetic fuel, wherein said fuel synthesis circuit is a gas-to-liquid plant including a Fischer-Tropsch reactor. - providing a source of natural gas containing byproducts, wherein the byproducts comprise ethane, propane, butane and pentane plus; - extracting byproduct fractions consisting of propane and/or butane from said natural gas; and - converting a feedstock consisting of the extracted propane and/or butane in a fuel synthesis circuit to a synthetic fuel, wherein said fuel synthesis circuit is a gas-to-liquid plant including a Fischer-Tropsch reactor.
A method for operating an anode adjusting device mechanism of an aluminium smelter, in which method an aluminium production cell being used comprises a cathode forming a base of the production tank, and an anode held at a suitable distance above the cathode by lifting and lowering the anode, and wherein some rotating part of the adjusting device mechanism is braked when the anode is being lowered down, char - acterized in that the bearing of the rotating part, such as a toothed shaft, allows movement of the shaft in the axial direction such that the axial force generated by the toothing presses a friction surface of a brake structure coupled to the rotating part in the anode lowering direction, braking the rotating movement.
Plural electrical mechanism carrier applicable to fixed structures, formed by the association of an oblong front panel forming a frame and a prismatic open box which is partially closed by said front panel, said panel and said open box having specific association means (16, 17) which allow them to be mutually associated to one another, characterized in that said frame comprises, on the periphery of its inner side which faces said open box, outer engagement means for engaging into a fixed location structure for the plural carrier, with said frame having on the edge of its opening a short peripheral wall which emerges only from said inner side of said frame and extends in a discrete manner into inner engagement means for engaging into another fixed location structure, with said peripheral wall also forming a step that is orientated inside said opening and which extends into a very short cantilever skirting which extends by emerging at said inner side of said frame in planes parallel to those of said peripheral wall.
Method for the fail-safe provision of an analogue output value (AW a) for a control process designed for functional safety, wherein the output value is specified by a control unit as a digital output value (AW d) and, in a first step, the digital output value (AW d) is converted into the analogue output value (AW a) by means of a conversion means, in a second step, the analogue output value (AW a) is converted into a fail-safe digital output value (AWf d) using fail-safe criteria, namely in two diverse ways, by means of a read-back means, in a third step, the originally provided digital output value (AW d) is compared with the converted fail-safe digital output value (AWf d), and in the event of the comparison revealing a deviation or of a plausibility criterion being infringed, a safety action is performed, and otherwise, the analogue output value (AW a) is output to the control process with the aid of a release means, wherein the fail-safe digital output value (AWf d) is provided to the control unit and compared with the digital output value (AW d) in the control unit, characterised in that a programmable logic control system designed for functional safety (F-PLC) with a safety program (F-Prog) is used as the control unit, wherein an analogue output assembly is used as the conversion means, which is realised as a standard assembly, namely an assembly not designed for functional safety, an analogue input assembly designed for functional safety is used as the read-back means and a digital output assembly designed for functional safety is used as the release means.
A thermoplastic resin composition, comprising: a first graft copolymer comprising an alkyl (meth)acrylate-based polymer-derived unit, an aromatic vinyl-based monomer-derived unit, and a vinyl cyanide-based monomer-derived unit; a copolymer comprising an aromatic vinyl-based monomer-derived unit and a vinyl cyanide-based monomer-derived unit; a polyester-based elastomer; and a phthalate-based plasticizer, wherein the phthalate-based plasticizer is comprised in an amount of 3 to 20 parts by weight based on 100 parts by weight of the sum of the first graft copolymer, the copolymer, and the polyester-based elastomer. a first graft copolymer comprising an alkyl (meth)acrylate-based polymer-derived unit, an aromatic vinyl-based monomer-derived unit, and a vinyl cyanide-based monomer-derived unit; a copolymer comprising an aromatic vinyl-based monomer-derived unit and a vinyl cyanide-based monomer-derived unit; a polyester-based elastomer; and a phthalate-based plasticizer, wherein the phthalate-based plasticizer is comprised in an amount of 3 to 20 parts by weight based on 100 parts by weight of the sum of the first graft copolymer, the copolymer, and the polyester-based elastomer.
A refrigerated merchandiser for a retail setting comprising: a case defining a product display area having a customer access opening, the case including an air inlet; a canopy disposed substantially above the product display area, the canopy including a first air outlet and a second air outlet located adjacent the first air outlet, the first air outlet and the second air outlet in communication with the product display area; a shelf coupled to the case within the product display area for supporting food product; a first passageway (45, 60, 70) fluidly connecting the air inlet with the first air outlet to direct a first airflow through the first air outlet across at least a portion of the customer access opening, the first airflow discharged from the first air outlet defining a primary air curtain; and a second passageway to direct a second airflow through the second air outlet across at least a portion of the customer access opening, the second airflow discharged from the second air outlet defining a secondary air curtain, the primary and secondary air curtains (180, 200) cooperating with each other to minimize infiltration of ambient air into the product display area; characterized in that the second passageway is in fluid communication with a heating, ventilation, and air conditioning ("HVAC") system by ducting connected to one or more distribution ducts of the retail setting, the ducting coupled between the merchandiser and the HVAC system to direct the second airflow from the HVAC system through the second air outlet. a case defining a product display area having a customer access opening, the case including an air inlet; a canopy disposed substantially above the product display area, the canopy including a first air outlet and a second air outlet located adjacent the first air outlet, the first air outlet and the second air outlet in communication with the product display area; a shelf coupled to the case within the product display area for supporting food product; a first passageway (45, 60, 70) fluidly connecting the air inlet with the first air outlet to direct a first airflow through the first air outlet across at least a portion of the customer access opening, the first airflow discharged from the first air outlet defining a primary air curtain; and a second passageway to direct a second airflow through the second air outlet across at least a portion of the customer access opening, the second airflow discharged from the second air outlet defining a secondary air curtain, the primary and secondary air curtains (180, 200) cooperating with each other to minimize infiltration of ambient air into the product display area; characterized in that the second passageway is in fluid communication with a heating, ventilation, and air conditioning ("HVAC") system by ducting connected to one or more distribution ducts of the retail setting, the ducting coupled between the merchandiser and the HVAC system to direct the second airflow from the HVAC system through the second air outlet.
A computer-implemented method for retrieving data for use on a mobile communication device (402,404,406,408), the method comprising: determining whether the data is accessible from one or more storage devices over a first wireless data network, the first wireless data network allowing the mobile communication device to connect with the one or more storage devices; and characterised in that if it is determined that the data is not accessible from the one or more storage devices, retrieving the data over a second wireless data network of a type different to the first wireless data network, the second wireless data network allowing the mobile communication device to connect with a data host, and sending the data to the one or more storage devices over the first wireless data network. determining whether the data is accessible from one or more storage devices over a first wireless data network, the first wireless data network allowing the mobile communication device to connect with the one or more storage devices; and characterised in that if it is determined that the data is not accessible from the one or more storage devices, retrieving the data over a second wireless data network of a type different to the first wireless data network, the second wireless data network allowing the mobile communication device to connect with a data host, and sending the data to the one or more storage devices over the first wireless data network.
Water-resistant watch case, particularly for a diving watch, the case comprising at least one crystal mounted on a portion of a middle, a fastening gasket of the crystal being disposed between an annular inner wall of the middle and an annular outer wall of the crystal, - the case being arranged so that, between the annular outer wall and the centre of the watch case, the crystal comprises an annular peripheral surface inclined at a defined angle smaller than 90° in relation to an axis perpendicular to a plane of the watch case and coming into direct contact against an annular inner surface of the middle, the annular inner surface being inclined at an angle similar to the angle of inclination of the annular peripheral surface and disposed below the annular inner wall of the middle, - characterised in that the annular peripheral surface comprises a domed contact surface portion with a convex curvature having a first radius defining an annular contact line against the annular inner surface of the middle. - the case being arranged so that, between the annular outer wall and the centre of the watch case, the crystal comprises an annular peripheral surface inclined at a defined angle smaller than 90° in relation to an axis perpendicular to a plane of the watch case and coming into direct contact against an annular inner surface of the middle, the annular inner surface being inclined at an angle similar to the angle of inclination of the annular peripheral surface and disposed below the annular inner wall of the middle, - characterised in that the annular peripheral surface comprises a domed contact surface portion with a convex curvature having a first radius defining an annular contact line against the annular inner surface of the middle.
A gas safety device comprising: a flow path through which a gas flows; an ultrasonic sensor for measuring a flow rate of the gas flowing through the flow path; a flow rate calculator for calculating a flow rate measurement data piece from a measurement value of the flow rate measured by the ultrasonic sensor; a leakage detector for detecting a minor leakage of the gas; a pulsation recognizer for recognizing that pulsation is occurring, when a fluctuation in the flow rate measuring data piece calculated by the flow rate calculator is greater than or equal to a predetermined value; characterized by: a pulsating flow rate corrector for correcting the flow rate measurement data, when the pulsation recognizer is determining that pulsation is occurring, the pulsating flow rate corrector is correcting the flow rate measurement data to a value confirmed in advance at the time of designing, the value being a value at which the average value of the flow rate measurement data is shifting from the flow rate of 0 L/h, wherein when the pulsation recognizer is determining that the pulsation is occurring, the leakage detector is determining whether a leakage is present using the flow rate measurement data piece corrected by the pulsating flow rate corrector. a flow path through which a gas flows; an ultrasonic sensor for measuring a flow rate of the gas flowing through the flow path; a flow rate calculator for calculating a flow rate measurement data piece from a measurement value of the flow rate measured by the ultrasonic sensor; a leakage detector for detecting a minor leakage of the gas; a pulsation recognizer for recognizing that pulsation is occurring, when a fluctuation in the flow rate measuring data piece calculated by the flow rate calculator is greater than or equal to a predetermined value; characterized by: a pulsating flow rate corrector for correcting the flow rate measurement data, when the pulsation recognizer is determining that pulsation is occurring, the pulsating flow rate corrector is correcting the flow rate measurement data to a value confirmed in advance at the time of designing, the value being a value at which the average value of the flow rate measurement data is shifting from the flow rate of 0 L/h, wherein when the pulsation recognizer is determining that the pulsation is occurring, the leakage detector is determining whether a leakage is present using the flow rate measurement data piece corrected by the pulsating flow rate corrector.
A power converter assembly comprising: a first self-oscillating resonant half bridge power converter comprising: a first controllable semiconductor switch and a second controllable semiconductor switch connected in series between a first DC supply rail (V cc) and a second DC supply rail, a first gate inductor connected between a control input of the first controllable semiconductor switch and a first bias voltage, such as the first DC supply rail, a second gate inductor connected between a control input of the second controllable semiconductor switch and a common output node of the first and second controllable semiconductor switches (S1, S2), a resonant network connected to the common output node, wherein a switching frequency of the first self-oscillating resonant half bridge power converter is larger than 1 MHz; and a start-up circuit configured to inject a first voltage pulse into the control input of the first controllable semiconductor switch for switching the first semiconductor switch from a non-conducting state to a conducting state to switch the first self-oscillating resonant half bridge power converter from an inactive state to an active state; characterised in that a duration of the first voltage pulse is less than a duration of one switching cycle of the first self-oscillating resonant half bridge power converter, such as between 1 % and 50 % of the duration of the one switching cycle; said one switching cycle representing a switching frequency of the first self-oscillating resonant half bridge power converter in its active state. a first controllable semiconductor switch and a second controllable semiconductor switch connected in series between a first DC supply rail (V cc) and a second DC supply rail, a first gate inductor connected between a control input of the first controllable semiconductor switch and a first bias voltage, such as the first DC supply rail, a second gate inductor connected between a control input of the second controllable semiconductor switch and a common output node of the first and second controllable semiconductor switches (S1, S2), a resonant network connected to the common output node, wherein a switching frequency of the first self-oscillating resonant half bridge power converter is larger than 1 MHz; and a start-up circuit configured to inject a first voltage pulse into the control input of the first controllable semiconductor switch for switching the first semiconductor switch from a non-conducting state to a conducting state to switch the first self-oscillating resonant half bridge power converter from an inactive state to an active state; characterised in that a duration of the first voltage pulse is less than a duration of one switching cycle of the first self-oscillating resonant half bridge power converter, such as between 1 % and 50 % of the duration of the one switching cycle; said one switching cycle representing a switching frequency of the first self-oscillating resonant half bridge power converter in its active state.
An apparatus comprising: a capacitive bulk acoustic wave disk gyro operated in a closed loop mode, the capacitive bulk acoustic wave disk gyro comprising a plurality of electrodes having pickoff electrodes and forcing electrodes; a self-calibration system operatively coupled to the capacitive bulk acoustic wave disk gyroscope; and wherein the self-calibration system is configured to implement self-calibration of gyro bias of the gyro by interchanging an anti-nodal axis with a nodal axis of the gyro by interchanging anti-nodal forcer electrodes with nodal pickoff electrodes and by interchanging the anti-nodal pickoff electrodes with the nodal forcer electrodes. a capacitive bulk acoustic wave disk gyro operated in a closed loop mode, the capacitive bulk acoustic wave disk gyro comprising a plurality of electrodes having pickoff electrodes and forcing electrodes; a self-calibration system operatively coupled to the capacitive bulk acoustic wave disk gyroscope; and wherein the self-calibration system is configured to implement self-calibration of gyro bias of the gyro by interchanging an anti-nodal axis with a nodal axis of the gyro by interchanging anti-nodal forcer electrodes with nodal pickoff electrodes and by interchanging the anti-nodal pickoff electrodes with the nodal forcer electrodes.
An optical system comprising: an irradiation device comprising wavefront correction optics, configured to irradiate a target external to the system with first light via a first optical path; an atmospheric characteristics obtaining system comprising a laser light source and an atmospheric model chamber in which the atmosphere in the first optical path is reproduced whereby the atmospheric model chamber and the reproduced atmosphere therein define a second optical path through which second light from the laser light source passes, whereby the second optical path is separated from the first optical path; and a controller for adjusting the wavefront correction optics based on the characteristics obtained by the atmospheric characteristics obtaining system, wherein an internal space of the model chamber is isolated from outside, wherein the wavefront correction optics are configured to correct the wavefront of the light and wherein the first light is outputted to travel via the wavefront correction optics to the target after the wavefront correction optics is adjusted by the controller. an irradiation device comprising wavefront correction optics, configured to irradiate a target external to the system with first light via a first optical path; an atmospheric characteristics obtaining system comprising a laser light source and an atmospheric model chamber in which the atmosphere in the first optical path is reproduced whereby the atmospheric model chamber and the reproduced atmosphere therein define a second optical path through which second light from the laser light source passes, whereby the second optical path is separated from the first optical path; and a controller for adjusting the wavefront correction optics based on the characteristics obtained by the atmospheric characteristics obtaining system, wherein an internal space of the model chamber is isolated from outside, wherein the wavefront correction optics are configured to correct the wavefront of the light and wherein the first light is outputted to travel via the wavefront correction optics to the target after the wavefront correction optics is adjusted by the controller.