Patents Assigned to Physical Sciences, Inc.
  • Patent number: 7866821
    Abstract: An apparatus for imaging an eye includes a housing and a system of optical components disposed in the housing. The apparatus is capable of operating in a line scanning laser opthalmoscope (LSLO) mode and an optical coherence tomography (OCT) mode. The system of optical components can include a first source to provide a first beam of light for the OCT mode and a second source to provide a second beam of light for the LSLO mode. In the OCT mode, a first optic is used that (i) scans, using a first surface of the first optic, the first beam of light along a retina of an eye in a first dimension, and (ii) descans, using the first surface, a first light returning from the eye in the first dimension to a detection system in the OCT mode. In the LSLO mode, the first optic is used where the second beam of light passes through a second surface of the first optic.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: January 11, 2011
    Assignee: Physical Sciences, Inc.
    Inventors: R. Daniel Ferguson, Daniel X. Hammer, Nicusor V. Iftimia, Chad Bigelow
  • Patent number: 7817699
    Abstract: A laser device includes an optical resonator, a microwave driven discharge device, and a source for a second gas. The microwave driven discharge device is disposed relative to the optical resonator. The microwave driven discharge device operates at a discharge power and gas flow rate to produce a selected amount of energetic singlet oxygen metastables flowing in the direction of the optical resonator. The second source for the second gas is disposed between the optical resonator and the microwave driven discharge device. The second gas reacts with the selected amount of energetic singlet oxygen metastables to form an excited species in an amount sufficient to support lasing of the excited species in the optical resonator.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: October 19, 2010
    Assignee: Physical Sciences, Inc.
    Inventors: W. Terry Rawlins, David B. Oaks, Seonkyung Lee, Steven J. Davis
  • Patent number: 7790135
    Abstract: The present invention is directed to the production of nanostructures, e.g., single wall carbon nanotubes (“SWNT”) and/or multi-wall carbon nanotubes (“MWNT”), from solutions containing a polymer, such as polyacrylonitrile (PAN). In particular, the invention is directed to the production of nanostructures, for example, SWNT and/or MWNT, from mixtures, e.g., solutions, containing polyacrylonitrile, polyaniline emeraldine base (PANi) or a salt thereof, an iron salt, e.g., iron chloride, and a solvent. In one embodiment, a mixture containing polyacrylonitrile, polyaniline emeraldine base or a salt thereof, an iron salt, e.g., iron chloride, and a solvent is formed and the mixture is electrospun to form nanofibers. In another embodiment, the electrospun nanofibers are then oxidized, e.g., heated in air, and subsequently pyrolyzed to form carbon nanostructures.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: September 7, 2010
    Assignee: Physical Sciences, Inc.
    Inventor: John D. Lennhoff
  • Publication number: 20100195048
    Abstract: A first optical module scans a portion of an eye with a line of light, descans reflected light from the scanned portion of the eye and confocally provides output light in a line focus configuration. A detection device detects the output light and images the portion of the eye. A second optical module detects an optical distortion and corrects the optical distortion in the line of light scanned on the portion of the eye.
    Type: Application
    Filed: January 15, 2010
    Publication date: August 5, 2010
    Applicant: Physical Sciences, Inc.
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Nicusor V. Iftimia
  • Patent number: 7763995
    Abstract: An electromechanical connection includes a first conductor disposed in a first non-conductive array and a second conductor disposed in a second non-conductive array capable of mating with the first non-conductive array. The second conductor is capable of mating with the first conductor when the first non-conductive array and the second non-conductive array are mated. A processor associated with the first non-conductive array determines if an electrical connection is formed between the first conductor and the second conductor. The processor can assign a function to the electrical connection.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: July 27, 2010
    Assignee: Physical Sciences, Inc.
    Inventors: Prakash B. Joshi, Brian K. Decker, John C. Magill, Michael F. Hinds
  • Publication number: 20100180443
    Abstract: A vehicle includes at least one polyoxymethylene structural support member. The polyoxymethylene structural support member includes a polyoxymethylene component that is a propellant that provides thrust to the vehicle upon pyrolysis or combustion of the polyoxymethylene component of the product of pyrolysis of the polyoxymethylene component. The vehicle can be a satellite or other type of spacecraft.
    Type: Application
    Filed: January 19, 2010
    Publication date: July 22, 2010
    Applicants: Physical Sciences, Inc., Alliant Techsystems Inc.
    Inventors: Prakash B. Joshi, Bernard L. Upschulte, Alan H. Gelb, B. David Green, Dean M. Lester, W. David Starrett, Ingvar A. Wallace
  • Patent number: 7758189
    Abstract: A system provides an optical image of an object. A first module tracks a reference feature of the object. A second module includes a source for an imaging beam, a scanning device to move the imaging beam along a portion of the object and a detection device receives a signal associated with an image of the portion of the object. The first module controls the position of the imaging beam relative to the reference feature to correct for the motion of the object. A third module detects a distortion of the object and compensates for the distortion.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: July 20, 2010
    Assignee: Physical Sciences, Inc.
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Nicusor V. Iftimia, Teoman E. Ustun
  • Publication number: 20100124702
    Abstract: A battery cathode includes carbon particulates, micron-sized particles of vanadium pentoxide modified with poly(pyrrole propanesulphonate), and a polymer binder. The carbon particulates and the micron-sized particles of vanadium pentoxide modified with poly(pyrrole propanesulphonate) are disposed within the polymer binder.
    Type: Application
    Filed: November 17, 2008
    Publication date: May 20, 2010
    Applicant: Physical Sciences, Inc.
    Inventor: Kevin C. White
  • Patent number: 7709139
    Abstract: A battery device includes a cathode current collector and an anode current collector. A fibrous electrode forms a structure defining a plurality of pores. A first portion of the fibrous electrode is in contact with a current collector. An electrolytic polymer is electrodeposited on the fibrous electrode to provide substantial uniform coverage of fibers forming the fibrous electrode. A plurality of electrode particles are disposed within the plurality of pores and separated from the fibrous electrode by the electrolytic polymer.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: May 4, 2010
    Assignee: Physical Sciences, Inc.
    Inventors: Kevin White, Quinn Horn, Edward Salley, John Lennhoff
  • Patent number: 7683357
    Abstract: A gas species monitoring system includes a laser, a fiber amplifier configured to receive an input signal from the laser and generate an amplified signal, and a variable optical attenuation system configured to receive at least a portion of the amplified signal and generate an attenuated signal for delivery to a measurement point, where the measurement point includes a gaseous fluid. The system further includes a detector configured to receive and process a signal from the measurement point so as to obtain a measured signal that correlates with the presence of a gas species within the gaseous fluid at the measurement point, and a processor in communication with at least the variable optical attenuation system and the detector. The processor controls the variable optical attenuation system based upon the measured signal.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: March 23, 2010
    Assignees: American Air Liquide, Inc., Physical Sciences, Inc.
    Inventors: William A. Von Drasek, Shawn D. Wehe, Mark G. Allen
  • Patent number: 7648242
    Abstract: An apparatus for imaging an eye includes a housing and a system of optical components disposed in the housing. The apparatus is capable of operating in a line scanning laser ophthalmoscope (LSLO) mode and an optical coherence tomography (OCT) mode. The system of optical components can include a first source to provide a first beam of light for the OCT mode and a second source to provide a second beam of light for the LSLO mode. In the OCT mode, a first optic is used that (i) scans, using a first surface of the first optic, the first beam of light along a retina of an eye in a first dimension, and (ii) descans, using the first surface, a first light returning from the eye in the first dimension to a detection system in the OCT mode. In the LSLO mode, the first optic is used where the second beam of light passes through a second surface of the first optic.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: January 19, 2010
    Assignee: Physical Sciences, Inc.
    Inventors: R. Daniel Ferguson, Daniel X. Hammer, Nicusor V. Iftimia, Chad Bigelow
  • Patent number: 7647763
    Abstract: A vehicle includes at least one polyoxymethylene structural support member. The polyoxymethylene structural support member includes a polyoxymethylene component that is a propellant that provides thrust to the vehicle upon pyrolysis or combustion of the polyoxymethylene component of the product of pyrolysis of the polyoxymethylene component. The vehicle can be a satellite or other type of spacecraft.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: January 19, 2010
    Assignees: Physical Sciences, Inc., Alliant Techsystems Inc.
    Inventors: Prakash B. Joshi, Bernard L. Upschulte, Alan H. Gelb, B. David Green, Dean M. Lester, W. David Starrett, Ingvar A. Wallace
  • Publication number: 20090320974
    Abstract: A vehicle includes at least one polyoxymethylene structural support member. The polyoxymethylene structural support member includes a polyoxymethylene component that is a propellant that provides thrust to the vehicle upon pyrolysis or combustion of the polyoxymethylene component of the product of pyrolysis of the polyoxymethylene component. The vehicle can be a satellite or other type of spacecraft.
    Type: Application
    Filed: May 12, 2008
    Publication date: December 31, 2009
    Applicants: Physical Sciences, Inc., Alliant Techsystems Inc.
    Inventors: Prakash B. Joshi, Bernard L. Upschulte, Alan H. Gelb, B. David Green, Dean M. Lester, W. David Starrett, Ingvar A. Wallace
  • Publication number: 20090313967
    Abstract: A vehicle includes at least one polyoxymethylene structural support member. The polyoxymethylene structural support member includes a polyoxymethylene component that is a propellant that provides thrust to the vehicle upon pyrolysis or combustion of the polyoxymethylene component of the product of pyrolysis of the polyoxymethylene component. The vehicle can be a satellite or other type of spacecraft.
    Type: Application
    Filed: March 22, 2005
    Publication date: December 24, 2009
    Applicant: Physical Sciences, Inc.
    Inventors: Prakash B. Joshi, Bernard L. Upschulte, Alan H. Gelb, B. David Green, Dean M. Lester, W. David Starrett, Ingvar A. Wallace
  • Patent number: 7581507
    Abstract: An embodiment of a launch/recovery device for both surface and underwater vehicles includes a plurality of driven wet-traction members arranged to form a low drag (e.g., water flow-through) ramp design. The wet-traction members provide traction even when wet between the water vehicle and the launch/recovery device. As a result of utilizing driven wet-traction members, the use of conventional hoists, special capture devices such as hooks and tow lines, and personnel located within the water to attach the capture devices to the water vehicle is eliminated. The wet-traction members provide both strength and flexibility to the launch/recovery device. That is, while the wet-traction members are strong enough to support the weight of the water vehicle, they are at the same time flexible enough to deflect a distance (e.g., about 6 to 15 inches) to accommodate a soft landing of the water vehicle on the ramp, while providing recovery forces and motion.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: September 1, 2009
    Assignee: Physical Sciences, Inc.
    Inventor: Fred Robert Kern
  • Publication number: 20090096704
    Abstract: Described is an apparatus and method for reducing noise in an information bearing signal is provided. A feeding element receives dual-polarized wideband electromagnetic signals. The feeding element is coupled to a Non-Cutoff Frequency Selective Surface ground plane. The Non-Cutoff Frequency Selective Surface ground plane allows for a line-of-sight signal and a surface wave to cancel. The Non-Cutoff Frequency Selective Surface ground plane can be a metal plate with a plurality of corrugations. The corrugations can be concentric rings, each corrugation having a predetermined height and a predetermined spacing from adjacent corrugations.
    Type: Application
    Filed: September 17, 2008
    Publication date: April 16, 2009
    Applicant: PHYSICAL SCIENCES, INC.
    Inventors: Sergey N. Makarov, Francesca Scire-Scappuzzo
  • Publication number: 20090088766
    Abstract: Methods and devices for distraction osteogenesis are disclosed employing an energy storage device and a controlled release of energy to provide a separating force. For example, bone expansion devices can include a first anchor element attachable to a first segment of bone, a second anchor element attachable to a second segment of bone, and an actuator for applying a separating force between the first and second anchor elements. The actuator can include a potential energy storage device and a controller for releasing energy from the energy storage device to provide the separating force.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 2, 2009
    Applicants: Physical Sciences, Inc., THE GENERAL HOSPITAL CORPORATION d/b/a MASSACHUSETTS GENERAL HOSPITAL
    Inventors: John C. Magill, Joseph R. Morency, Leonard B. Kaban, Maria Troulis
  • Patent number: 7450234
    Abstract: A light scattering sensor is provided with a cylindrical lens focusing received light along substantially parallel lines, or bands, that correspond to a range of scattering angles and a linear detector that detects the light intensity along the substantially parallel lines. By using a cylindrical lens, the lens serves as an auto-collimator, whereby light scattered at a specific angle from the collimated light beam strikes the linear detector at a corresponding specific location regardless of the location from where the light was scattered. Embodiments of the cylindrical lens-based light sensor can be applied to a number of different applications and industries that analyze light scattering intensity as a function of scattering angle. For example, embodiments of the cylindrical lens-based light scattering sensor can be used for monitoring a target fluid for contaminants.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: November 11, 2008
    Assignee: Physical Sciences, Inc.
    Inventors: Michael A. White, Christopher L. Templeman, Michael B. Frish, Peter E. Nebolsine
  • Publication number: 20080241490
    Abstract: An insulation structure and a method for forming an insulation structure on a surface provide both mechanical integrity and insulative capabilities in applications and environments involving extreme temperatures and compressive forces. The insulation structure includes aerogel agglomerates formed by combining ceramic particles with aerogel particles. The insulation structure may further include ceramic particles. The aerogel agglomerates and ceramic particles are thermally sprayed on a surface to form a graded or layered structure. The method for forming an insulation structure includes spray-drying and post-drying a mixture of ceramic particles, aerogel particles, water, and a binder.
    Type: Application
    Filed: April 2, 2008
    Publication date: October 2, 2008
    Applicant: Physical Sciences, Inc.
    Inventors: Aron Newman, Fred Lauten
  • Publication number: 20080202405
    Abstract: An embodiment of a launch/recovery device for both surface and underwater vehicles includes a plurality of driven wet-traction members arranged to form a low drag (e.g., water flow-through) ramp design. The wet-traction members provide traction even when wet between the water vehicle and the launch/recovery device. As a result of utilizing driven wet-traction members, the use of conventional hoists, special capture devices such as hooks and tow lines, and personnel located within the water to attach the capture devices to the water vehicle is eliminated. The wet-traction members provide both strength and flexibility to the launch/recovery device. That is, while the wet-traction members are strong enough to support the weight of the water vehicle, they are at the same time flexible enough to deflect a distance (e.g., about 6 to 15 inches) to accommodate a soft landing of the water vehicle on the ramp, while providing recovery forces and motion.
    Type: Application
    Filed: July 3, 2007
    Publication date: August 28, 2008
    Applicant: Physical Sciences, Inc.
    Inventor: Fred Robert Kern