Patent application number | Description | Published |
20110200495 | Cartridge for controlled production of hydrogen - A reaction hydrogen production control mechanism is provided that includes, a solid sodium borohydride mixture, a liquid fuel reactant, at least one liquid delivery medium (LDM), a movable boundary interface (MBI) and a reaction zone, where the MBI is disposed to provide a constant contact between a reacting surface of the solid fuel mixture and the primary LDM to form the reaction zone. A reaction in the reaction zone includes a hydrolysis reaction. The MBI moves according to a spring, gas pressure, or an elastic membrane. Product paths are disposed to transfer reactants from the system. The product paths can include a channel on a surface of the solid fuel mixture, a channel disposed through the solid fuel mixture, a channel disposed about the solid fuel mixture, a contained region disposed about the solid fuel mixture, or a conduit abutting the solid fuel mixture. | 08-18-2011 |
20120017439 | METHOD OF FABRICATING A REACTION CHAMBER FOR A FUEL STORAGE ASSEMBLY - A method for manufacturing a reaction chamber comprising a fuel insert and an elastic enclosure with a body and an opening, the method including the steps of stretching the body of the elastic enclosure to define a working lumen, orienting the metal hydride insert within the working lumen, and restituting the elastic enclosure over the insert. | 01-26-2012 |
20130147276 | SYSTEMS AND METHODS FOR MANAGING A FUEL CELL - A method of operating a power adapter that includes an energy storage device and a fuel cell system including a fuel supply and a fuel cell stack, the method including determining a connectivity state of an auxiliary power source and a load with the power adapter, and selecting a power adapter operation mode based on the connection states of the auxiliary power source and the load. The operation modes of the power adapter include at least an auxiliary mode when the auxiliary power source and the load are connected to the power adapter, and a fuel cell mode when the auxiliary power source is disconnected from the power adapter and the load is connected to the power adapter. The auxiliary mode includes providing power from the auxiliary power source to the load, and the fuel cell mode includes providing fuel cell power to the load. | 06-13-2013 |
20130149626 | SYSTEM AND METHOD FOR DEVICE POWER MANAGEMENT - A method for controlling fuel cartridge supply for a device powered by a fuel cell system, the fuel cell system including a fuel cell stack that converts fuel from the fuel cartridge into electrical power, the method including receiving operation data from each of a plurality of devices at a first time period, calculating a future fuel cartridge demand from the operation data, the future fuel cartridge demand associated with a second time period after the first time period, calculating a target fuel cartridge manufacturing volume from the future hydrogen cartridge demand, and sending the target fuel cartridge manufacturing volume to a manufacturing facility. | 06-13-2013 |
Patent application number | Description | Published |
20090079564 | MICROWAVE DIRECTION OF TRAVEL DETECTOR BY PARALLEL SAMPLING - A microwave direction of travel detector and method of detecting the direction of an intruder in a protected region. The microwave direction of travel detector transmits and receives, by a microwave transceiver a microwave signal directed toward a protected area. The microwave return signal is modulated by a moving target to produce a Doppler signal. The received Doppler signal is amplified by a chain of amplifiers having two or more amplifiers coupled to the microwave transceiver. A controller monitors the output of each chain of the amplifiers. The microwave sensor is configured for parallel sampling an amplified Doppler signal output from each amplifiers having a low signal output and each successive chain of the amplifiers a successively higher signal output. The controller determines if there is a direction of travel motion from the intruder and sends an alarm. | 03-26-2009 |
20090079615 | DIRECTION OF TRAVEL MOTION DETECTOR WITH AUTOMATIC GAIN CONTROL - Disclosed is a microwave direction of travel detector and method of doing the same. The microwave direction of travel detector comprising, a microwave transceiver for transmitting and receiving a microwave signal directed toward a protected area for outputting a Doppler signal when a moving target is detected, an amplifier chain including one or more amplifiers coupled to the microwave transceiver for receiving and amplifying the Doppler signal from the microwave transceiver, wherein at least one amplifier having variable gain and; a controller for sampling an output gain of each variable gain amplifier and for controlling each variable gain amplifier by adjusting a gain of each variable gain amplifier to keep the Doppler signal level constant and to avoid saturation of each said variable gain amplifier. If the output gains of each variable gain amplifier is increasing or decreasing the controller indicates a direction of travel. | 03-26-2009 |
20090121958 | MICROWAVE MOTION SENSOR WITH A REFLECTOR - A microwave motion sensor including a patch antenna having a plurality of microwave radiating elements for transmitting and receiving a microwave signal where each microwave radiating element is of the antenna in an array configuration. A reflector is disposed above the antenna for downward shaping the radiating signal, where the microwave radiating elements together with the reflector provide a radiation pattern where a main beam is transmitted in a direction orthogonal to a surface of said antenna and a sided lobe transmitted downward in amplitude below the microwave motion sensor. | 05-14-2009 |
20090160698 | ANTI-INTERFERENCE MICROWAVE MOTION SENSOR - A microwave motion sensor for protecting an area comprises an oscillator configured to generate a plurality of microwave signals, a random pulse generator configured to set a random pulse period for each transmitted microwave signal, an antenna configured to transmit the microwave signals and to receive reflected signals, and a signal processor coupled to the antenna through other circuitry, said signal processor is configured to process the reflected signals to determine a presence of a moving object in the protected area. | 06-25-2009 |
20100283660 | ANTI-MASK MOTION SENSOR - A motion sensing method and apparatus includes a housing enclosing a microwave motion sensor including an antenna, and a security system. The antenna may be a patch antenna which includes microwave radiating elements for transmitting and receiving a microwave signal for sensing motion. A reflector is attached to the housing and positioned above the antenna for downward shaping of the microwave signal. The microwave radiating elements together with the reflector provide a radiation pattern where a main beam is transmitted in a direction orthogonal to a surface of the antenna and a sided lobe is transmitted downward in amplitude below the microwave motion sensor. An alarm circuit indicates when the microwave sensor detects motion in armed mode, and a masking circuit indicates when the microwave sensor detects motion in a mask zone when the security system is unarmed. A second sensor may be positioned beneath the microwave motion sensor. | 11-11-2010 |