Patents Assigned to Sandia
  • Titanium alkoxide compound
    Patent number: 7256290
    Abstract: A titanium alkoxide composition is provided, as represented by the chemical formula (OC6H5N)2Ti(OC6H5NH2)2. As prepared, the compound is a crystalline substance with a hexavalent titanium atom bonded to two OC6H5NH2 groups and two OC6H5N groups with a theoretical molecular weight of 480.38, comprising 60.01% C, 5.04% H and 11.66% N.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: August 14, 2007
    Assignee: Sandia Corporation
    Inventor: Timothy J. Boyle
  • Waveguide device and method for making same
    Patent number: 7256667
    Abstract: A monolithic micromachined waveguide device or devices with low-loss, high-power handling, and near-optical frequency ranges is set forth. The waveguide and integrated devices are capable of transmitting near-optical frequencies due to optical-quality sidewall roughness. The device or devices are fabricated in parallel, may be mass produced using a LIGA manufacturing process, and may include a passive component such as a diplexer and/or an active capping layer capable of particularized signal processing of the waveforms propagated by the waveguide.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: August 14, 2007
    Assignee: Sandia National Laboratories
    Inventor: Michael A. Forman
  • Reactive ion etched substrates and methods of making and using
    Patent number: 7253008
    Abstract: Disclosed herein are substrates comprising reactive ion etched surfaces and specific binding agents immobilized thereon. The substrates may be used in methods and devices for assaying or isolating analytes in a sample. Also disclosed are methods of making the reactive ion etched surfaces.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: August 7, 2007
    Assignee: Sandia Corporation
    Inventors: Victor C. Rucker, Renée Shediac, Blake A. Simmons, Karen L. Havenstrite
  • Wavelength-doubling optical parametric oscillator
    Patent number: 7248397
    Abstract: A wavelength-doubling optical parametric oscillator (OPO) comprising a type II nonlinear optical medium for generating a pair of degenerate waves at twice a pump wavelength and a plurality of mirrors for rotating the polarization of one wave by 90 degrees to produce a wavelength-doubled beam with an increased output energy by coupling both of the degenerate waves out of the OPO cavity through the same output coupler following polarization rotation of one of the degenerate waves.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: July 24, 2007
    Assignee: Sandia Corporation
    Inventors: Darrell J. Armstrong, Arlee V. Smith
  • Arsenic removal from water
    Patent number: 7247242
    Abstract: Methods for removing arsenic from water by addition of inexpensive and commonly available magnesium oxide, magnesium hydroxide, calcium oxide, or calcium hydroxide to the water. The hydroxide has a strong chemical affinity for arsenic and rapidly adsorbs arsenic, even in the presence of carbonate in the water. Simple and commercially available mechanical methods for removal of magnesium hydroxide particles with adsorbed arsenic from drinking water can be used, including filtration, dissolved air flotation, vortex separation, or centrifugal separation. A method for continuous removal of arsenic from water is provided. Also provided is a method for concentrating arsenic in a water sample to facilitate quantification of arsenic, by means of magnesium or calcium hydroxide adsorption.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: July 24, 2007
    Assignee: Sandia Corporation
    Inventors: Robert C. Moore, D. Richard Anderson
  • MEMS fluidic actuator
    Patent number: 7246524
    Abstract: The present invention comprises a novel, lightweight, massively parallel device comprising microelectromechanical (MEMS) fluidic actuators, to reconfigure the profile, of a surface. Each microfluidic actuator comprises an independent bladder that can act as both a sensor and an actuator. A MEMS sensor, and a MEMS valve within each microfluidic actuator, operate cooperatively to monitor the fluid within each bladder, and regulate the flow of the fluid entering and exiting each bladder. When adjacently spaced in a array, microfluidic actuators can create arbitrary surface profiles in response to a change in the operating environment of the surface. In an embodiment of the invention, the profile of an airfoil is controlled by independent extension and contraction of a plurality of actuators, that operate to displace a compliant cover.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: July 24, 2007
    Assignee: Sandia Corporation
    Inventors: Deepesh K. Kholwadwala, Gabriel A. Johnston, Brandon R. Rohrer, Paul C. Galambos, Murat Okandan
  • Interconnection arrangement of routers of processor boards in array of cabinets supporting secure physical partition
    Patent number: 7246217
    Abstract: A multiple processor computing apparatus includes a physical interconnect structure that is flexibly configurable to support selective segregation of classified and unclassified users. The physical interconnect structure includes routers in service or compute processor boards distributed in an array of cabinets connected in series on each board and to respective routers in neighboring row cabinet boards with the routers in series connection coupled to routers in series connection in respective neighboring column cabinet boards. The array can include disconnect cabinets or respective routers in all boards in each cabinet connected in a toroid. The computing apparatus can include an emulator which permits applications from the same job to be launched on processors that use different operating systems.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: July 17, 2007
    Assignee: Sandia Corporation
    Inventors: James L. Tomkins, William J. Camp
  • Inorganic ion sorbent method
    Patent number: 7244359
    Abstract: A process and medium for decontamination of water containing anionic species including arsenic and chromium, wherein compounds comprising divalent and trivalent metal oxides and sulfides are used to form surface complexes with contaminants under pH conditions within the range of potable water. In one embodiment natural and synthetic spinels and spinel-like materials are used as the sorbent substance.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: July 17, 2007
    Assignee: Sandia Corporation
    Inventors: David M. Teter, Patrick V. Brady, James L. Krumhansl
  • Enhanced distributed energy resource system
    Patent number: 7239044
    Abstract: A power transmission system including a direct current power source electrically connected to a conversion device for converting direct current into alternating current, a conversion device connected to a power distribution system through a junction, an energy storage device capable of producing direct current connected to a converter, where the converter, such as an insulated gate bipolar transistor, converts direct current from an energy storage device into alternating current and supplies the current to the junction and subsequently to the power distribution system. A microprocessor controller, connected to a sampling and feedback module and the converter, determines when the current load is higher than a set threshold value, requiring triggering of the converter to supply supplemental current to the power transmission system.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: July 3, 2007
    Assignee: Sandia Corporation
    Inventors: Stanley Atcitty, Nancy H. Clark, John D. Boyes, Satishkumar J. Ranade
  • Method for absorbing an ion from a fluid
    Patent number: 7238288
    Abstract: A method for absorbing an ion from a fluid by using dispersing an organic acid into an anion surfactant solution, mixing in a divalent-metal containing compound and a trivalent-metal containing compound and calcining the resulting solid layered double hydroxide product to form an absorbent material and then contacting the absorbent material with an aqueous solution of cations or anions to be absorbed.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: July 3, 2007
    Assignee: Sandia Corporation
    Inventors: Huizhen Gao, Yifeng Wang, Charles R. Bryan
  • Compact monolithic capacitive discharge unit
    Patent number: 7236345
    Abstract: A compact monolithic capacitive discharge unit (CDU) is disclosed in which a thyristor switch and a flyback charging circuit are both sandwiched about a ceramic energy storage capacitor. The result is a compact rugged assembly which provides a low-inductance current discharge path. The flyback charging circuit preferably includes a low-temperature co-fired ceramic transformer. The CDU can further include one or more ceramic substrates for enclosing the thyristor switch and for holding various passive components used in the flyback charging circuit. A load such as a detonator can also be attached directly to the CDU.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: June 26, 2007
    Assignee: Sandia Corporation
    Inventors: Alexander W. Roesler, George E. Vernon, Darren A. Hoke, Virginia K. De Marquis, Steven M. Harris
  • Authenticating concealed private data while maintaining concealment
    Patent number: 7237115
    Abstract: A method of and system for authenticating concealed and statistically varying multi-dimensional data comprising: acquiring an initial measurement of an item, wherein the initial measurement is subject to measurement error; applying a transformation to the initial measurement to generate reference template data; acquiring a subsequent measurement of an item, wherein the subsequent measurement is subject to measurement error; applying the transformation to the subsequent measurement; and calculating a Euclidean distance metric between the transformed measurements; wherein the calculated Euclidean distance metric is identical to a Euclidean distance metric between the measurement prior to transformation.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: June 26, 2007
    Assignee: Sandia Corporation
    Inventors: Edward V. Thomas, Timothy J. Draelos
  • Gregorian optical system with non-linear optical technology for protection against intense optical transients
    Patent number: 7236297
    Abstract: An optical system comprising a concave primary mirror reflects light through an intermediate focus to a secondary mirror. The secondary mirror re-focuses the image to a final image plane. Optical limiter material is placed near the intermediate focus to optically limit the intensity of light so that downstream components of the optical system are protected from intense optical transients. Additional lenses before and/or after the intermediate focus correct optical aberrations.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: June 26, 2007
    Assignee: Sandia Corporation
    Inventors: Mark R. Ackermann, Jean-Claude M. Diels
  • Nanocluster-based white-light-emitting material employing surface tuning
    Patent number: 7235190
    Abstract: A method for making a nanocrystal-based material capable of emitting light over a sufficiently broad spectral range to appear white. Surface-modifying ligands are used to shift and broaden the emission of semiconductor nanocrystals to produce nanoparticle-based materials that emit white light.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: June 26, 2007
    Assignee: Sandia Corporation
    Inventors: Jess P. Wilcoxon, Billie L. Abrams, Steven G. Thoma
  • Anonymous authenticated communications
    Patent number: 7234059
    Abstract: A method of performing electronic communications between members of a group wherein the communications are authenticated as being from a member of the group and have not been altered, comprising: generating a plurality of random numbers; distributing in a digital medium the plurality of random numbers to the members of the group; publishing a hash value of contents of the digital medium; distributing to the members of the group public-key-encrypted messages each containing a same token comprising a random number; and encrypting a message with a key generated from the token and the plurality of random numbers.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: June 19, 2007
    Assignee: Sandia Corporation
    Inventors: Cheryl L. Beaver, Richard C. Schroeppel, Lillian A. Snyder
  • Portable vapor diffusion coefficient meter
    Patent number: 7229593
    Abstract: An apparatus for measuring the effective vapor diffusion coefficient of a test vapor diffusing through a sample of porous media contained within a test chamber. A chemical sensor measures the time-varying concentration of vapor that has diffused a known distance through the porous media. A data processor contained within the apparatus compares the measured sensor data with analytical predictions of the response curve based on the transient diffusion equation using Fick's Law, iterating on the choice of an effective vapor diffusion coefficient until the difference between the predicted and measured curves is minimized. Optionally, a purge fluid can forced through the porous media, permitting the apparatus to also measure a gas-phase permeability. The apparatus can be made lightweight, self-powered, and portable for use in the field.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: June 12, 2007
    Assignee: Sandia Corporation
    Inventor: Clifford K. Ho
  • Variable focal length deformable mirror
    Patent number: 7229178
    Abstract: A variable focal length deformable mirror has an inner ring and an outer ring that simply support and push axially on opposite sides of a mirror plate. The resulting variable clamping force deforms the mirror plate to provide a parabolic mirror shape. The rings are parallel planar sections of a single paraboloid and can provide an on-axis focus, if the rings are circular, or an off-axis focus, if the rings are elliptical. The focal length of the deformable mirror can be varied by changing the variable clamping force. The deformable mirror can generally be used in any application requiring the focusing or defocusing of light, including with both coherent and incoherent light sources.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: June 12, 2007
    Assignee: Sandia Corporation
    Inventors: Daniel Headley, Marc Ramsey, Jens Schwarz
  • Composition pulse time-of-flight mass flow sensor
    Patent number: 7225683
    Abstract: A device for measuring fluid flow rates over a wide range of flow rates (<1 nL/min to >10 ?L/min) and at pressures at least as great as 2,000 psi. The invention is particularly adapted for use in microfluidic systems. The device operates by producing compositional variations in the fluid, or pulses, that are subsequently detected downstream from the point of creation to derive a flow rate. Each pulse, comprising a small fluid volume, whose composition is different from the mean composition of the fluid, can be created by electrochemical means, such as by electrolysis of a solvent, electrolysis of a dissolved species, or electrodialysis of a dissolved ionic species. Measurements of the conductivity of the fluid can be used to detect the arrival time of the pulses, from which the fluid flow rate can be determined. A pair of spaced apart electrodes can be used to produce the electrochemical pulse.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: June 5, 2007
    Assignee: Sandia National Laboratories
    Inventors: Cindy K. Harnett, Robert W. Crocker, Bruce P. Mosier, Pamela F. Caton, James F. Stamps
  • Heteroporphyrin nanotubes and composites
    Patent number: 7223474
    Abstract: Heteroporphyrin nanotubes, metal nanostructures, and metal/porphyrin-nanotube composite nanostructures formed using the nanotubes as photocatalysts and structural templates, and the methods for forming the nanotubes and composites.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: May 29, 2007
    Assignee: Sandia Corporation
    Inventors: John A. Shelnutt, Craig J. Medforth, Zhongchun Wang
  • Method for generating a mesh representation of a region characterized by a trunk and a branch thereon
    Patent number: 7219039
    Abstract: The present invention provides a meshing method, called grafting, that lifts the prior art constraint on abutting surfaces, including surfaces that are linking, source/target, or other types of surfaces of the trunk volume. The grafting method locally modifies the structured mesh of the linking surfaces allowing the mesh to conform to additional surface features. Thus, the grafting method can provide a transition between multiple sweep directions extending sweeping algorithms to 2¾-D solids. The method is also suitable for use with non-sweepable volumes; the method provides a transition between meshes generated by methods other than sweeping as well.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: May 15, 2007
    Assignee: Sandia Corporation
    Inventors: Jason Shepherd, Scott A. Mitchell, Steven R. Jankovich, Steven E. Benzley