Abstract: The invention relates to a supply device for compressed air to a plurality of cathodes (100a-100d) of a fuel cell system, characterized in that it comprises a motorized compressor (12) configured to provide a source of compressed air to all of the cathodes (100a-100d), a group of ducts configured to conduct the compressed air to each cathode (100a-100d), for each cathode (100a-100d), a proportioning valve (20a-20d) upstream or downstream of said cathode (100a-100d) which is configured to regulate the flow rate of compressed air passing through said cathode (100a-100d), anti-pumping protection means (30, 32) configured to allow the flow of a minimum flow rate of compressed air leaving the compressor (12), and a control device (24) configured to control the speed of the compressor (12) and the opening or closing of each proportioning valve (20a-20d) and/or the operation of the anti-pumping protection means (30, 32).

Abstract: Disclosed are a pin assembly for providing current to an electrode, e.g. an inert or oxygen evolving anode, and its manufacturing method. The pin assembly is configured to be inserted into an electrode body of an electrode for providing an electric current to the electrode body. The pin assembly comprises a structural support member configured to mechanically support the electrode body, and a protective conductive member configured to embed the structural support member. The protective conductive member comprises at least one metal or alloy thereof adapted for conducting the electric current while protecting the structural support member against corrosion during a given period of time of use of the electrode. The pin assembly enables convenient electrical connection of the electrodes, combines electrical and thermal performance for optimizing cell efficiency, provides structural and corrosion durability for extending pin assembly life, and utilizes robust joining processes for high reliability.

Abstract: A first acoustic transducer has an armature, and the armature moves within a magnetic field. The first transducer also comprises a first coil. A second acoustic transducer has a first outer circumferential edge and an inner circumferential edge. A housing includes at least portions of the first transducer and the second transducer. The first transducer is disposed at least partially within the cavity and within the inner circumferential edge of the second transducer. The first coil is fixed in space relative to the housing.

Abstract: A first acoustic transducer has an armature, and the armature moves within a magnetic field. The first transducer also comprises a first coil. A second acoustic transducer has a first outer circumferential edge and an inner circumferential edge. A housing includes at least portions of the first transducer and the second transducer. The first transducer is disposed at least partially within the cavity and within the inner circumferential edge of the second transducer. The first coil is fixed in space relative to the housing.

Abstract: Various embodiments of the present disclosure can include systems, methods, and non-transitory computer readable media configured to perform a code based technique to identify at least one potential connection for a user. The code based technique comprises generating a code associated with the at least one potential connection; providing the code to a mobile device of the at least one potential connection; and providing information to allow the user to establish a connection with the at least one potential connection.

Abstract: Methods, systems, and products are disclosed for detecting an intrusion to a communications network. One embodiment describes a system for detecting intrusions. The system has a peripheral card coupled to a host computer system. The peripheral card has a communications portion and a processor managing the communications portion. The communications portion has only a capability for receiving data packets via a communications network. The communications portion lacks capability of transmitting the data packets via the communications network. The communications portion of the peripheral card reduces intrusion of the communications network.

Abstract: Process for producing purified hydrocarbon gas from a gas stream comprising hydrocarbons and acidic contaminants, which process comprises the steps: (a) cooling the gas stream to a temperature to form a mixture comprising solid and optionally liquid acidic contaminants and a vapour containing gaseous hydrocarbons; (b) separating the solid and optionally liquid acidic contaminants from the mixture in a vessel, yielding the purified hydrocarbon gas; (c) providing heat to at least a part of the solid and optionally liquid acidic contaminants to melt at least part of the solid acidic contaminants, yielding a heated contaminant-rich stream; (d) withdrawing the heated contaminant-rich stream from the vessel; wherein the process further comprises: (e) reheating at least a part of the heated contaminant-rich stream to form a reheated recycle stream; and (f) recycling at least a part of the reheated recycle stream to the vessel.

Abstract: Process for producing purified hydrocarbon gas from a gas stream comprising methane and acidic contaminants, which process comprises the steps of cooling the gas stream in a first cooling stage to a first temperature to form a first mixture of solid and/or liquid acidic contaminants and a vapour containing gaseous hydrocarbons and a reduced amount of acidic contaminants; separating the solid and/or liquid acidic contaminants from the first mixture, yielding partly purified gas; cooling the partly purified gas in a second cooling step to a second temperature to form a second mixture comprising purified hydrocarbon gas and further solid and/or liquid acidic contaminants; and separating the further solid and/or liquid acidic contaminants from the second mixture, yielding the purified hydrocarbon gas.

Abstract: Methods, systems, and products are disclosed for detecting an intrusion to a communications network. One embodiment describes a peripheral card having a communications portion and a processor. The communications portion has only a capability for receiving data packets via the communications network. The communications portion lacks capability of transmitting the data packets via the communications network. The processor manages the communications portion, and the communications portion reduces intrusion of the communications network.

Abstract: An audio system for use in a passenger compartment of a vehicle. The system includes a front-driver side speaker unit and a front-passenger side speaker unit to cooperatively emit audio sound to the passenger compartment. The driver-side speaker unit includes a primary speaker and a secondary speaker to produce sound in cooperation with a primary speaker and a secondary speaker of the passenger-side speaker unit. An audio control system is configured to compensate for unbalancing of stereo images at front-driver/passenger positions by controlling output from the secondary speakers based on output from the primary speakers.

Abstract: A stencil printer is provided for depositing solder paste onto a surface of an electronic substrate. The stencil printer includes a frame and a stencil coupled to the frame. The stencil has a plurality of apertures formed therein. The stencil printer further includes a dispenser coupled to the frame. The stencil and the dispenser are adapted to deposit solder paste onto the electronic substrate. The stencil printer further includes an imaging system constructed and arranged to capture an image of the electronic substrate. The imaging system includes a camera assembly, an on-axis illumination assembly adapted to generate light substantially along a first axis generally perpendicular to the surface of the electronic substrate, and an off-axis illumination assembly adapted to generate rays of light substantially along a second axis extending at an angle with respect to the first axis. A controller is coupled to the imaging system to control movement of the imaging system to capture an image.

Abstract: A stencil printer for depositing solder paste onto an electronic substrate includes a frame and a stencil coupled to the frame. A dispenser is coupled to the frame, with the dispenser and the stencil being configured to deposit solder paste onto the plurality of pads of the electronic substrate. An imaging system is configured to capture images of regions of interest of at least one of the electronic substrate and the stencil. The stencil printer further includes a controller coupled to the imaging system, with the controller being configured to control movement of the imaging system to capture images of regions of interest of at least one of the electronic substrate and the stencil extending generally along a first axis before moving the imaging system in another direction. A method for dispensing material on a substrate is further disclosed.

Abstract: A stencil printer for depositing solder paste onto a plurality of pads of an electronic substrate includes a frame and a stencil coupled to the frame. The stencil has a plurality of apertures formed therein. The stencil printer further includes a support assembly coupled to the frame, the support assembly supporting the electronic substrate in a printing position. An imaging system is adapted to capture images of multiple areas of one of the electronic substrate and the stencil. A controller, coupled to the imaging system, is adapted to control movement of the imaging system to capture an image of an area while maintaining a minimum velocity above zero when capturing the image of the area. Methods for dispensing solder paste on a substrate and for inspecting the substrate are further disclosed.

Abstract: An audio system includes a first speaker operable to output sound over a first frequency range, and a second speaker operable to output sound over a second frequency range. A first input device is operable to select a volume of the sound output by the first and second speakers, and a second input device is operable to effect a change in the volume of the sound output by the first and second speakers, independently of each other. A control system is configured to effect a change in the volume of the sound output by the second speaker over a high portion of the second frequency range, while holding substantially constant the volume of the sound output by the second speaker over a low portion of the second frequency range, when the second input device is operated to change the volume of the sound output by the second speaker.

Abstract: A method of inspecting a stencil having apertures through which a substance is deposited onto an electronic substrate includes depositing the substance through the stencil and onto the substrate, capturing a first image of the stencil after the deposit of the substance and detecting variations in texture of the substance in the first image, capturing a second image of the electronic substrate having the substance on its surface and detecting variations in texture of the substance in the second image, defining a region of interest in the first image and in the second image to determine whether at least one feature exists in the region of interest, measuring a first span of the at least one feature in the region of interest in the first image and a second span of the at least one feature in the region of interest in the second image, and correlating the first span of the at least one feature and the second span of the at least one feature to determine whether a threshold span of the at least one feature has bee

Abstract: A muffler for removably installing onto a pneumatic tool. A muffler housing has a deflector plate dividing the tool exhaust gases into streams of gas. The streams impinge upon an airfoil rotatably mounted within the housing mixing the streams and gas pulses in a more uniform mixture which then is emitted from the housing.

Abstract: A vehicle overhead audio system, an electromagnetic transducer assembly for use therein and a computer system programmed with a graphic software control for changing the audio system's signal level and delay are provided where a headliner of the vehicle is a loudspeaker of the system thereby replacing many other loudspeakers and being invisible to the occupants. The headliner is driven in multiple zones that effect proper imaging for all occupants. Supplemental high frequency and subwoofer speakers and signal processing circuitry are included in one aspect of the invention.

Abstract: Methods, systems, and products are disclosed for detecting an intrusion to a communications network. One embodiment describes a peripheral card having a communications portion and a processor. The communications portion has only a capability for receiving data packets via the communications network. The communications portion lacks capability of transmitting the data packets via the communications network. The processor manages the communications portion, and the communications portion reduces intrusion of the communications network.

Abstract: An apparatus and methods for depositing material on a surface of an electronic substrate are provided and include a squeegee device or system for distributing material to be deposited on the electronic substrate. The squeegee device or system can include a first wiping blade and a second wiping blade spaced from and parallel to the first wiping blade. The first wiping blade and the second wiping blade are disposed at an angle relative to a vertical axis, the vertical axis being perpendicular to a surface of an electronic substrate, such that when the first and the second wiping blades contact a surface of a stencil to deposit or print the material onto the electronic substrate, the first and the second wiping blades contact the stencil surface at a rake angle relative to a direction in which the squeegee device traverses the stencil surface.