Abstract: A copackaged electronic device comprises a diode device having an anode coupled to a drain electrode of a switching device and a cathode capable of being coupled to an external circuit. The switching device may be controlled by an integrated circuit mounted on a source electrode of the switching device and electrically connected such that the integrated circuit is capable of controlling switching of the switching device. For example, the device is used in a power factor correction circuit. The diode device comprises at least one inverted diode having a solderable anode and a wire-bondable cathode.

Abstract: An eductor having an air gap, a venturi structure, and a non-return valve located in the air gap. The non-return valve is removable and allows the eductor to be operated as an air gap eductor or a non-return valve eductor. A non-return valve cartridge for installing in to the air gap of an air gap eductor, so that the eductor can be operated as a non-return valve eductor. A method of retrofitting a non-return valve in an air gap eductor.

Abstract: A low profile semiconductor device package includes a lead frame with terminal leads and two die pads for receiving at least two semiconductor die that are interconnected to form a circuit. A further low profile semiconductor device package includes a lead frame with two die pads for receiving at least two semiconductor die that are interconnected to form a circuit and also has a reduced height through removal of a mounting tab. An example of such device packages is a package that includes first and second MOSFET die, each connected to a respective die pad. The source of one MOSFET is connected to the drain of the other MOSFET, thereby forming a low profile device package that provides a half-bridge circuit. Other example device packages include different arrangements of two interconnected MOSFET die, two interconnected IGBTs, or a combination of a MOSFET die and a diode.

Abstract: A liquid flow restrictor in the supply line of an eductor or other dilution or dispensing device has a rotatably mounted disc with opposite faces and a plurality of apertures or holes, which provide different flow restrictions between the faces, and a pair of flow conduits sealingly engaging against the faces, whereby on rotation of the member the zones are selectively brought into communication with the conduits to provide a desired flow restriction.

Abstract: The present invention relates to yeast cells containing the SRB1/PSA1 gene and/or the PKC1 gene or functional derivatives thereof operatively linked to a heterologous inducible promoter and also to methods of regulating yeast cell lysis and flocculation and methods of fermentation using such yeast cells.

Abstract: A copackaged electronic device comprises a diode device having an anode coupled to a drain electrode of a switching device and a cathode capable of being coupled to an external circuit. The switching device may be controlled by an integrated circuit mounted on a source electrode of the switching device and electrically connected such that the integrated circuit is capable of controlling switching of the switching device. For example, the device is used in a power factor correction circuit. The diode device comprises at least one inverted diode having a solderable anode and a wire-bondable cathode.

Abstract: Two series-connected diodes which are housed in a power package (such as but not limited to TO220, TO220FP, D2pak, TO247, etc.).

Abstract: Two series-connected diodes which are housed in a power package (such as but not limited to TO220, TO220FP, D2pak, TO247, etc.).

Abstract: A fuel and gas mixer for a gas turbine combustor includes a body member. The body member has a truncated conical annulus, with its smaller end which communicates with a smaller end of a downstream truncated conical chamber. Gaseous fuel is injected into the annulus through hollow spokes arranged radially in the annulus and mixes with air flow introduced from air upstream passages. The velocity of the primary mixture of the fuel and air in the annulus increases when the flow is directed towards the downstream chamber because the truncated conical shape of the annulus reduces the cross-section of the flow passageway downstream-wise. With increased velocity, the primary mixture is diffused when entering the truncated conical chamber and is further mixed with air introduced from downstream air passages.

Abstract: A fuel and gas mixer for a gas turbine combustor includes a body member. The body member has a truncated conical annulus, with its smaller end which communicates with a smaller end of a downstream truncated conical chamber. Gaseous fuel is injected into the annulus through hollow spokes arranged radially in the annulus and mixes with air flow introduced from air upstream passages. The velocity of the primary mixture of the fuel and air in the annulus increases when the flow is directed towards the downstream chamber because the truncated conical shape of the annulus reduces the cross-section of the flow passageway downstream-wise. With increased velocity, the primary mixture is diffused when entering the truncated conical chamber and is further mixed with air introduced from downstream air passages.

Abstract: A premixer for an industrial type gas turbine engine wherein the premixer includes a diffuser ring assembly made up of annular concentric rings and upstream of the diffuser ring assembly in the airflow path is a corresponding fuel manifold ring assembly, each ring in the manifold ring assembly corresponding to a passageway formed between the diffuser rings, and each manifold ring includes a downstream channel for feeding the fuel to the air as the air passes by the ring.

Abstract: A premixer for an industrial type gas turbine engine wherein the premixer includes a diffuser ring assembly made up of annular concentric rings and upstream of the diffuser ring assembly in the airflow path is a corresponding fuel manifold ring assembly, each ring in the manifold ring assembly corresponding to a passageway formed between the diffuser rings, and each manifold ring includes a downstream channel for feeding the fuel to the air as the air passes by the ring.

Abstract: The present invention refers to a paper surface sizing composition comprising a copolymer having: a) structural units derived from ethylenically unsaturated hydrocarbons; structural units derived from monomers selected from esters of ethylenically unsaturated mono-carboxylic acids, half-esters of ethylenically unsaturated dicarboxylic acids, allylethers and vinylethers and mixtures thereof; optionally c) structural units derived from ethylenically unsaturated monomers selected from monocarboxylic acids as well as salts and amides thereof, dicarboxylic acids as well as salts, amides and half-amides thereof, and cyclic anhydrides and imides of dicarboxylic acids and mixtures thereof; and optionally d) structural units derived from alkyl or amino-substituted alkyl acrylates or methacrylates with the proviso, that if no structural units c) are present, the structural units b) are derived from monomers selected from half esters of ethylenically unsaturated dicarboxylic acids.