Patents Assigned to Physical Sciences, Inc.
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Publication number: 20140031677Abstract: A handheld optical coherence tomography imaging and tissue sampling system and method of imaging and sampling a tissue is disclosed. The method includes inserting a catheter probe into a biopsy needle. The biopsy needle can be attached to a hand-held scanning and sampling device. The biopsy needle is maneuvered to an investigation site. A three-dimensional image of the tissue at the investigation site is captured with the catheter probe.Type: ApplicationFiled: January 17, 2013Publication date: January 30, 2014Applicant: PHYSICAL SCIENCES, INC.Inventor: PHYSICAL SCIENCES, INC.
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Publication number: 20140032167Abstract: A system with multiple sensors is managed to determine which sensors to utilize when forming an estimate of the system state. A list of active sensor subsets is formed from multiple sensors. The list of active sensor subsets is represented by a list of differing vectors with indices enumerating the sensors of each sensor subset. Noise is filtered from a measurement of each sensor. State and covariance for each sensor of the multiple sensors is estimated based on prior measurements. A quality of service (QoS) metric is calculated for each sensor subset based on the estimated sensor state. The QoS metric is recorded in a QoS vector and the list of active sensors subsets is updated with the sensor subsets that have a QoS metric above a QoS threshold. The state and covariance estimates are combined to form the estimates of the system state and covariance.Type: ApplicationFiled: March 30, 2012Publication date: January 30, 2014Applicant: Physical Sciences, Inc.Inventors: Peter Mayer, David Manegold
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Publication number: 20130205751Abstract: A catalyst free method of igniting an ionic liquid is provided. The method can include mixing a liquid hypergol with a HAN-based ionic liquid to ignite the HAN-based ionic liquid in the absence of a catalyst. The HAN-based ionic liquid and the liquid hypergol can be injected into a combustion chamber. The HAN-based ionic liquid and the liquid hypergol can impinge upon a stagnation plate positioned at top portion of the combustion chamber.Type: ApplicationFiled: October 11, 2012Publication date: August 15, 2013Applicant: Physical Sciences, Inc.Inventor: Physical Sciences, Inc.
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Patent number: 8451190Abstract: 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: GrantFiled: July 13, 2011Date of Patent: May 28, 2013Assignee: Physical Sciences, Inc.Inventors: Sergey N. Makarov, Francesca Scire-Scappuzzo
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Patent number: 8444268Abstract: 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: GrantFiled: January 19, 2011Date of Patent: May 21, 2013Assignee: Physical Sciences, Inc.Inventors: Daniel X. Hammer, R. Daniel Ferguson, Nicusor V. Iftimia, Teoman E. Ustun
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Patent number: 8432949Abstract: 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: GrantFiled: September 14, 2010Date of Patent: April 30, 2013Assignee: Physical Sciences Inc.Inventors: W. Terry Rawlins, David B. Oakes, Seonkyung Lee, Steven J. Davis
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Publication number: 20130101770Abstract: A method of forming a metalized polymeric bubble in a space, microgravity environment is described. A liquid polymer bubble having a predetermined diameter is formed from a mixture comprising a liquid polymer and at least one of a UV curing material, a stabilizer, a UV absorber, or a surfactant. The liquid polymer bubble is cured with radiation to form a rigid polymer bubble. The rigid polymer bubble is then metalized with a metal to form the metalized polymeric bubble.Type: ApplicationFiled: October 18, 2012Publication date: April 25, 2013Applicant: Physical Sciences, Inc.Inventor: Physical Sciences, Inc.
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Publication number: 20120294328Abstract: A product critical temperature during freeze drying is determined. The product is imaged using optical coherence tomography (“OCT”). The product is freeze dried while the temperature of the product is measured. The product critical temperature is the temperature at which a product structure event occurs during freeze drying.Type: ApplicationFiled: April 24, 2012Publication date: November 22, 2012Applicant: Physical Sciences, Inc.Inventors: Mircea Mujat, William J. Kessler
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Publication number: 20120209125Abstract: An apparatus for photodynamic therapy (PDT) includes a light source configured to provide excitation light for a photosensitizer, an optical system configured to direct the excitation light to a target region and receive light emitted by the photosensitizer and/or singlet oxygen generated in the target region, and a detection system configured to receive the light emitted by the photosensitizer and/or the singlet oxygen. The apparatus also includes a filter system configured to spectrally discriminate between emission from the photosensitizer and the singlet oxygen and a processor configured to determine concentrations of the singlet oxygen and/or the photosensitizer based on an emission signal measured by the detection system.Type: ApplicationFiled: February 10, 2012Publication date: August 16, 2012Applicant: PHYSICAL SCIENCES, INC.Inventors: Steven J. Davis, Seonkyong Lee
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Patent number: 8201943Abstract: 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: GrantFiled: January 15, 2010Date of Patent: June 19, 2012Assignee: Physical Sciences, Inc.Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Nicusor V. Iftimia
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Publication number: 20120091000Abstract: An electrolytic filtration method and apparatus for the concentration and collection of suspended particulates from aqueous solutions is disclosed. The electrolytic cell contains at least an anode and a cathode, and in one embodiment contains a plurality of anodes and cathodes. The electrolytic cell also contains a filter, and in one embodiment the filter is a moving belt filter. While not bound by theory, the electrolytic filtration method and apparatus is based on the electrophoretic movement of algae particles suspended in an aqueous solution away from the filter under the influence of an electric field. In one embodiment the electric field is a pulsed waveform with unidirectional voltage or current pulses. In another embodiment, the electric field is a pulsed waveform with bidirectional voltage or current pulses.Type: ApplicationFiled: September 30, 2011Publication date: April 19, 2012Applicants: FARADAY TECHNOLOGY, INC., ALGAEVENTURE SYSTEMS, PHYSICAL SCIENCES, INC.Inventors: E. Jennings Taylor, Maria I. Inman, Joseph Kell, Heather McCrabb, Anthony Ferrante, Ross Youngs, John Nicholas Meister, James Robert Cook
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Publication number: 20120086154Abstract: A near field electrospinning system includes a spinneret that provides a plurality of fibers and a collector positioned relative to the plurality of spinnerets. The electrospinning system also includes a coagulant flowing along the collector. The coagulant is configured to receive a plurality of fibers from the spinneret(s) and move the plurality of fibers away from the spinneret(s). The electrospinning system also includes a roller configured to collect the plurality of fibers from the coagulant as a substantially untwisted bundle of continuous fibers.Type: ApplicationFiled: October 7, 2010Publication date: April 12, 2012Applicant: Physical Sciences, Inc.Inventor: John D. Lennhoff
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Publication number: 20110319643Abstract: A method of forming an azido energetic alcohol includes converting an energetic diol to a cyclic sulfite, oxidizing the cyclic sulfite to a cyclic sulfate, and opening the cyclic sulfate. The cyclic sulfate is opened, followed by hydrolysis, to form an azido energetic alcohol.Type: ApplicationFiled: June 23, 2010Publication date: December 29, 2011Applicant: Physical Sciences, Inc.Inventors: Alicia Thompson, Ana Racoveanu, David Skyler
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Publication number: 20110267252Abstract: 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: ApplicationFiled: July 13, 2011Publication date: November 3, 2011Applicant: Physical Sciences, Inc.Inventors: Sergey N. Makarov, Francesca Scire-Scappuzzo
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Patent number: 8033021Abstract: 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: GrantFiled: January 19, 2010Date of Patent: October 11, 2011Assignees: 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
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Patent number: 8033665Abstract: 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: GrantFiled: December 9, 2010Date of Patent: October 11, 2011Assignee: Physical Sciences, Inc.Inventors: R. Daniel Ferguson, Daniel X. Hammer, Nicusor V. Iftimia, Chad Bigelow
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Patent number: 8004474Abstract: 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: GrantFiled: September 17, 2008Date of Patent: August 23, 2011Assignee: Physical Sciences, Inc.Inventors: Sergey N. Makarov, Francesca Scire-Scappuzzo
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Publication number: 20110117436Abstract: A carbon nanofiber can have a surface and include at least one crystalline whisker extending from the surface of the carbon nanofiber. A battery anode composition can be formed from a plurality of carbon nanofibers each including a plurality of crystalline whiskers.Type: ApplicationFiled: November 17, 2010Publication date: May 19, 2011Applicant: Physical Sciences, Inc.Inventors: Junqing Ma, Aron Newman, John Lennhoff
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Patent number: 7896496Abstract: 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: GrantFiled: June 17, 2010Date of Patent: March 1, 2011Assignee: Physical Sciences, Inc.Inventors: Daniel X. Hammer, R. Daniel Ferguson, Nicusor V. Iftimia, Teoman E. Ustun
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Publication number: 20110006957Abstract: A wide-bandwidth antenna (e.g., a rib-dipole antenna) includes a first pole formed by a first conductive member and/or a second pole formed by a second conductive member. The antenna also includes an antenna feed between the first conductive member and the second conductive member. The antenna also includes at least one electrically conductive element including a surface. A portion of the surface is electrically connected to, and extends from, the first conductive member or the second conductive member. The at least one electrically conductive element is capable of conducting a current that generates a magnetic field. The magnetic field lowers a total reactance of the antenna, thereby resulting in enhanced performance of the antenna and more efficient use of volume.Type: ApplicationFiled: July 13, 2009Publication date: January 13, 2011Applicant: Physical Sciences, Inc.Inventors: Francesca Sciré-Scappuzzo, Sergey N. Makarov