Patents Assigned to General Atomics
  • Patent number: 7763457
    Abstract: A system and method are provided for growing algae with improved photoefficiency. The system includes a bioreactor formed with a conduit for growing algae cells in a medium. Further, the system is provided with a paddle wheel for moving the medium through the conduit at a predetermined fluid flow velocity. In order to ensure that algae cells are efficiently converting light energy to chemical energy, a plurality of barriers is positioned in the fluid stream. Specifically, the barriers are separated by predetermined distances to create von Karman vortices in the medium. As a result, algae cells are sequentially flowed to the surface of the fluid stream to receive light energy for predetermined intervals of time.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: July 27, 2010
    Assignee: General Atomics
    Inventors: Eric H. Dunlop, David A. Hazlebeck
  • Patent number: 7746279
    Abstract: Composite structures having an integral intelligent skin are made of one or more plies of a structural base material and an intelligent or smart film by molding one or more plies and the film into an integral unitary body with the intelligent film outermost. The intelligent or smart film contains or bears a functionally active or interactive component such as antennae, electronic sensors, electric and/or electronic circuitry, and/or spectrally tailored coatings. A method of making the composite structure in a very economical manner is disclosed.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: June 29, 2010
    Assignee: General Atomics
    Inventors: Thomas R. McGovern, Ronald N. Hubbard
  • Patent number: 7736471
    Abstract: A system for treating a feedstock for the purposes of waste destruction, energy generation, or the production of useful chemicals is disclosed and includes a reactor vessel. A heating lance is configured to outflow the products of a partial oxidation reaction into a reaction chamber in the vessel. The hot reaction products heat and pyrolyze the feedstock in the chamber generating a process effluent which typically includes gases (e.g. syn-gas) and carbon solids. Glasses and metals in the feedstock accumulate in the chamber in a molten state. The molten materials store thermal energy and provide thermal stability to the treatment system. A recycle loop uses carbon solids from the process effluent as an input to the lance for reaction with an oxidant therein.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: June 15, 2010
    Assignee: General Atomics
    Inventor: David A. Hazlebeck
  • Patent number: 7732769
    Abstract: The present embodiments provide methods, systems and apparatuses that detect, classify and locate flash events. In some implementations, some of the methods detect a flash event, trigger an imaging system in response to detecting the flash event to capture an image of an area that includes the flash event, and determines a location of the flash event.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: June 8, 2010
    Assignee: General Atomics
    Inventors: Robin Terry Snider, Jeffrey Dykes McGee, Michael Dale Perry
  • Publication number: 20100117679
    Abstract: A test apparatus involving a rotor coupled to a drive shaft, wherein the drive shaft is mechanically coupled to a drive system; a stator coupled to a brush holder; a brush held by the brush holder, wherein the brush is held in contact with the rotor; a housing for supporting the rotor and the stator; and a superconducting magnet for providing a magnetic field in the vicinity of the brush, in accordance with one embodiment.
    Type: Application
    Filed: December 15, 2009
    Publication date: May 13, 2010
    Applicant: General Atomics
    Inventors: Zbigniew S. Piec, David E. Corbett, Alan R. Langhorn
  • Patent number: 7687261
    Abstract: A system and method are provided for producing algae with high oil content. The system includes a chemostat formed with a conduit for growing algae, an input port for feeding a medium into the conduit, and an output port for passing an effluence from the conduit. Further, the chemostat includes a paddlewheel or other device that moves the medium around the conduit. Also, the system includes a plug flow reactor for receiving the effluence from the chemostat. In order to trigger high oil production in the algae, a modified nutrient mix is added to the effluence in the plug flow reactor. Specifically, the modified nutrient mix comprises a limited amount of a selected constituent to trigger oil production in the algae. Further, the system includes an algae separator for removing high oil content algae from the plug flow reactor.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: March 30, 2010
    Assignee: General Atomics
    Inventors: David A. Hazlebeck, Eric H. Dunlop
  • Publication number: 20100039933
    Abstract: A sensor network having a first command center and a first access node, comprising a wireless transceiver, coupled to the command center. The sensor network may also include a plurality of nodes individually comprising a wireless transceiver and a directional antenna, wherein each of the plurality of nodes is successively located in a downlink direction relative to the first access node, and is configured to wirelessly communicate via the directional antenna with at least one node of a first neighbor group in a first direction and at least one node of a second neighbor group in a second direction. In addition, a sensor device is individually coupled to at least one of the nodes, and is configured to provide sensor data for the first command center.
    Type: Application
    Filed: October 27, 2008
    Publication date: February 18, 2010
    Applicant: General Atomics
    Inventors: James Laurence Taylor, Venkatagopal Racherla, Jaya L. Jeyaseelan, Naiel K. Askar, Michael D. Perry, David S. Furuno
  • Patent number: 7662616
    Abstract: A system for processing oil from algae is disclosed. Specifically, the system recycles byproducts of the process for use as nutrients during algae growth and oil production. The system includes a conduit for growing algae and an algae separator that removes the algae from the conduit. Also, the system includes a device for lysing the algae and an oil separator to remove the oil from the lysed matter. Further, the system includes a biofuel reactor that receives oil from the oil separator and synthesizes biofuel and glycerin. Moreover, the algae separator, oil separator and biofuel reactor all recycle byproducts back to the conduit to support further algae growth.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: February 16, 2010
    Assignee: General Atomics
    Inventors: David A. Hazlebeck, Eric H. Dunlop
  • Patent number: 7656963
    Abstract: A method for data transmission includes forming a notched radio-frequency (RF) burst according to one or more data values, where a bandwidth of the notched RF burst is at least two percent of the center frequency of the notched RF burst. Forming a notched RF pulse includes altering, according to the data, at least one of the amplitude and phase of one or more selected components, where each of the selected components has a bandwidth within the bandwidth of the notched RF burst.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: February 2, 2010
    Assignee: General Atomics
    Inventors: David A. Humphreys, Gerald D. Rogerson
  • Patent number: 7642806
    Abstract: A magnetic test apparatus, in accordance with one embodiment, comprising a rotor coupled to a drive shaft, wherein the drive shaft is mechanically coupled to a drive system; a stator coupled to at least one brush holder; at least one brush held by the brush holder, wherein the brush is held in contact with the rotor; a housing for supporting the rotor and the stator; and a magnet for providing a magnetic field in the vicinity of the at least one brush.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: January 5, 2010
    Assignee: General Atomics
    Inventors: Zbigniew S. Piec, David E. Corbett, Alan R. Langhorn
  • Publication number: 20090286489
    Abstract: Methods and apparatus are provided for communicating between a host and a peripheral. In one embodiment, a method comprises the steps: establishing, in a manner transparent to the host, a wireless data link between a wireless hub device and a wireless peripheral device coupled to the peripheral, the wireless hub device coupled to and configured to communicate with the host, wherein the host is configured to communicate with peripheral devices over a wireline link at a plurality of data rates when connected via the wireline link; and controlling a flow of data between the host and the wireless hub device so that the host is unaware of the wireless data link, wherein the data is to be communicated between the host and the peripheral.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 19, 2009
    Applicant: General Atomics
    Inventors: Venkatagopal Racherla, Stephan Walter Gehring, Daniel Paul Peters, Arul Kumar Subbiah
  • Patent number: 7611625
    Abstract: A system and method for oxidizing a feed material includes a reactor vessel that forms an enclosed chamber. The vessel includes a port for introducing the feed material into the chamber where it can be oxidized to create salts and particulates, together with a fluid effluent. After their creation, the salts and particulates flow into a brine pool maintained within the chamber. Thereafter, brine, including salts and particulates, can be removed from the chamber through a vessel outlet. Further, the vessel includes a fluid effluent discharge pipe extending from outside the vessel, through the brine pool, into the chamber. As a result of this structure, the fluid effluent can be separated from the salts and particulates and discharged from the chamber through the pipe, passing through the brine pool.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: November 3, 2009
    Assignee: General Atomics
    Inventors: David A. Hazlebeck, John L. Perlman
  • Patent number: 7609608
    Abstract: A method of data transmission according to one embodiment of the invention includes encoding a set of data values to produce a corresponding series of ordered n-tuples. The method also includes transmitting, according to the series of ordered n-tuples, a plurality of bursts over a plurality n of frequency bands. Specifically, for each of the plurality of bursts, a frequency band occupied by the burst is indicated by the order within its n-tuple of an element corresponding to the burst. A bandwidth of at least one of the plurality of bursts is at least two percent of the center frequency of the burst. Information is encoded into an additional modulation, e.g., amplitude, width or polarization modulation, of at least one of the plurality of bursts.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: October 27, 2009
    Assignee: General Atomics
    Inventors: Gerald D. Rogerson, David S. Furuno, Stephan W. Gehring, Michael L. Walker, Jason L. Ellis
  • Publication number: 20090180498
    Abstract: Methods and systems are provided to form a single coherent beam of light from a plurality of smaller beams of light. In one implementation a beam combiner comprising a beam director is configured to direct a seed beam of coherent light and a plurality of pump beams of coherent light; and a nonlinear converter is configured to combine the seed beam and the plurality of pump beams directed by the beam director to produce a substantially coherent wave front.
    Type: Application
    Filed: January 16, 2008
    Publication date: July 16, 2009
    Applicant: General Atomics
    Inventor: Bodo Schmidt
  • Patent number: 7536425
    Abstract: A persistent archive of a collection of data objects comprises a self-describing, infrastructure-independent representation of a logical structure for the collection and a self-describing, infrastructure-independent representation of the data objects. The archive is persistent in that it may be instantiated at an indefinite point in time in the future regardless of the state of technology at that time. A knowledge-based persistent archive of a collection of data objects comprises the foregoing two elements but also a self-describing, infrastructure-independent representation of knowledge relevant to the collection.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: May 19, 2009
    Assignees: General Atomics, Regents of the University of California
    Inventors: Reagan W. Moore, Arcot Rajasekar, Chaitanya K. Baru, Bertram Ludaescher, Amarnath Gupta, Richard J. Marciano
  • Patent number: 7517887
    Abstract: The present invention provides compositions and methods for reversibly inhibiting S-adenosyl-L-homocysteine (SAH) hydrolase. The compounds of the present invention can be used as an anti-hemorrhagic viral infection agent, an immunosuppressant, a homocysteine lowering agent, or an anti-neoplasm agent. The compositions and methods of the present invention can be used for the prevention and treatment of hemorrhagic virus infection, autoimmune diseases, autograft rejection, neoplasm, hyperhomocysteineuria, cardiovascular disease, stroke, Alzheimer's disease, multiple sclerosis or diabetes.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: April 14, 2009
    Assignee: General Atomics
    Inventor: Chong-Sheng Yuan
  • Patent number: 7514820
    Abstract: Capacitor based pulse forming networks and methods are provided which require fewer inductors are that pulsed more frequently to provide a smaller, lower mass, and lower inductance pulse forming network having better pulse shaping characteristics than conventional pulse forming networks. In one implementation, the invention can be characterized as a capacitor based pulse forming network comprising a plurality of inductors adapted to be coupled to a load, a plurality of capacitor units, and a plurality of switches. Each switch couples a respective capacitor unit to a respective inductor, wherein multiple capacitor units are coupled to each inductor by separate switches. The plurality of switches are adapted to non-simultaneously discharge at least some of the multiple capacitor units to provide non-simultaneous pulses through a given inductor to the load and not through other inductors. The non-simultaneous pulses form at least a portion of an output pulse waveform to the load.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: April 7, 2009
    Assignee: General Atomics
    Inventors: Frederick W. MacDougall, Geoffrey W. Staines
  • Patent number: 7503249
    Abstract: A gun barrel for firing a projectile and particularly a rail gun barrel that comprises a pair of spaced apart rails and a pair of spaced apart insulators, which separate the rails, and together define a composite bore, all disposed centrally within an outer rigid tube. A prestressed filament-wound polymeric resin shell immediately surrounds and applies compressive stress to this composite, bore-defining structure. A pressure medium, positioned between the shell and the interior surface of the outer tube, is operative to apply compressive stress to the shell at least at locations generally radially outward of the rails. The compressive stresses applied by the combination of the prestressed shell and the pressure medium are additive and effectively preload the rails and the composite bore structure to resist overall forces encountered during projectile firing which, in a rail gun, include asymmetric loads upon the rails from electromagnetic repulsion forces and also axisymmetric bursting forces.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: March 17, 2009
    Assignee: General Atomics
    Inventors: Thomas R. Jackson, Thomas W. Hurn
  • Publication number: 20080305507
    Abstract: This invention relates generally to the field of homocysteine detection. In particular, the invention provides a method for determining homocysteine presence or concentration in samples, which method comprises: contacting a sample containing or suspected of containing Hcy with a Hcy co-substrate and a Hcy converting enzyme in a Hcy conversion reaction to form a Hcy conversion product and a Hcy co-substrate conversion product; and assessing the Hcy co-substrate conversion product to determine the presence, absence and/or amount of the Hcy in the sample. The Hcy co-substrate conversion product may be assessed directly, or it may be assessed by further conversion of the Hcy co-substrate conversion product into another material by the action of one or more additional enzymes. A kit for assaying homocysteine based on the same principle is also provided.
    Type: Application
    Filed: January 4, 2008
    Publication date: December 11, 2008
    Applicant: General Atomics
    Inventors: Chong-Sheng YUAN, Abhijit Datta, Chao Dou
  • Patent number: 7453180
    Abstract: A system for generating an electrical current in a circuit includes a rotor, a stator and a motor for rotating the rotor about a rotation axis. A plurality of permanent magnets are mounted on the rotor and radially distanced from the rotation axis. With this structure, the permanent magnets rotate with the rotor to establish a time-varying magnetic field. A winding is attached to the stator, connected to the circuit and immersed in the time-varying magnetic field generated by the permanent magnets. In one implementation, a switch is provided to reconfigure the circuit between a first, open-circuit configuration in which little or no current flows through the circuit, and a second closed-circuit configuration in which a current is generated at the winding for flow through the circuit.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: November 18, 2008
    Assignee: General Atomics
    Inventors: Hugo H. van den Bergh, Robert Kratz