Patents Assigned to Physical Sciences, Inc.
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Publication number: 20240344972Abstract: A handheld gas detector comprising a housing including therein a laser beam source for outputting a laser beam, a microelectromechanical mirror in the path of the laser beam and actuatable in one or two angular directions that reflects the laser beam towards a target remote from the housing, a controller configured to actuate the microelectromechanical mirror to direct the reflected laser beam to a predetermined pattern of locations on the target, a photodetector for detecting backscattered laser energy from the target, and a processing subsystem configured to process outputs of the photodetector at selected locations of the pattern. The processed photodetector outputs are utilized to render a visible depiction of a gas plume on a display screen.Type: ApplicationFiled: April 12, 2024Publication date: October 17, 2024Applicant: Physical Sciences Inc.Inventors: SHIN-JUH CHEN, NICHOLAS F. AUBUT, MICHAEL B. FRISH, RICHARD T. WAINNER
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Patent number: 11875964Abstract: A triple-point cathode coating and method wherein electrically conductive NEA diamond particles cast or mixed with the adhesive medium and electrically insulative NEA diamond particles are cast or mixed with the adhesive medium to form a plurality of exposed junctions between electrically conductive diamond particles and electrically insulative diamond particles to reduce any electrical charges on a structure coated with the coating.Type: GrantFiled: July 2, 2021Date of Patent: January 16, 2024Assignee: Physical Sciences, Inc.Inventors: Jonathan D. Rameau, Nicholas R. Craig
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Patent number: 11807545Abstract: A method of separating scandium from a feedstock wherein a scandium enriched solution is produced from the feedstock and the scandium enriched solution is extracted to produce an organic phase of the scandium enriched solution. The organic phase of the scandium enriched solution is re-extracted to produce an aqueous phase including scandium chloride. The aqueous phase is precipitated and calcinated to produce scandium oxide powder.Type: GrantFiled: March 23, 2020Date of Patent: November 7, 2023Assignee: Physical Sciences, Inc.Inventors: Dorin V. Preda, Prakash B. Joshi, Matthew B. Boucher, Aaron R. Rathmell
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Patent number: 11718528Abstract: A method of producing high conductivity carbon material from coal includes subjecting the coal to a dissolution process to produce a solubilized coal material, and subjecting the solubilized coal material to a pyrolysis process to produce the high conductivity carbon material.Type: GrantFiled: December 10, 2020Date of Patent: August 8, 2023Assignee: Physical Sciences Inc.Inventors: Dorin V. Preda, Min K. Song, Jake T. Herb, Christopher M Lang, David P. Gamliel
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Patent number: 11289699Abstract: A method for producing a coated powder including homogeneously mixing an electrochemically active material including electrochemically active particles with nanosize particles in a ratio determined by the surface area of the electrochemically active particles to form a homogeneous powder, adding a polymer and mixing to form a homogeneous solid mixture, adding a solvent to dissolve the polymer and form a viscous slurry, mixing the viscous slurry, and drying the viscous slurry to cause the nanosize particles to become localized adjacent to an outer surface of the electrochemically active particles with the polymer maintaining the proximity between the nanosize conductive particles and the outer surface of the electrochemically active particles.Type: GrantFiled: August 20, 2019Date of Patent: March 29, 2022Assignee: Physical Sciences, Inc.Inventor: Christopher M. Lang
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Patent number: 11109759Abstract: 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: GrantFiled: February 28, 2018Date of Patent: September 7, 2021Assignee: Physical Sciences, Inc.Inventors: Nicusor V. Iftimia, Whanwook Chang
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Patent number: 10806140Abstract: An antimicrobial composition including low molecular weight dendrimers of formula (1): Q is an antimicrobial moiety in monomer or dendritic form, N is a nitrogen atom, L2 is a linker linking each Y1 molecular spacer to the nitrogen atom, Y1 is a molecular spacer spacing each antimicrobial moiety Q from the L2 linker, there are two or more chains of antimicrobial moieties and molecular spacers, X is a linker configured to covalently bond to surface functionalities of the substrate, and Y2 is a molecular spacer between the linker X and the nitrogen atom.Type: GrantFiled: April 4, 2019Date of Patent: October 20, 2020Assignee: Physical Sciences, Inc.Inventors: Dorin V. Preda, Aaron R. Rathmell, Colin M. Hessel, John D. Lennhoff, Mitchell T. Antalek
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Patent number: 10511018Abstract: A method for producing a coated powder including homogeneously mixing an electrochemically active material including electrochemically active particles with nanosize particles in a ratio determined by the surface area of the electrochemically active particles to form a homogeneous powder, adding a polymer and mixing to form a homogeneous solid mixture, adding a solvent to dissolve the polymer and form a viscous slurry, mixing the viscous slurry, and drying the viscous slurry to cause the nanosize particles to become localized adjacent to an outer surface of the electrochemically active particles with the polymer maintaining the proximity between the nanosize conductive particles and the outer surface of the electrochemically active particles.Type: GrantFiled: September 8, 2015Date of Patent: December 17, 2019Assignee: Physical Sciences, Inc.Inventor: Christopher M. Lang
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Patent number: 9964834Abstract: In a high power optical system, a thermal waveguide including an optical material having an index of refraction sensitive to changes in temperature, the rectangular optical material having a first dimension and a second dimension in a horizontal plane and a third dimension in a vertical plane, the third dimension being approximately ten times smaller than the first and second dimension, at least one heat sink thermally coupled to the optical material to establish a one-dimensional thermal gradient across the third dimension of the optical material, the thermal gradient having a parabolic profile across the rectangular optical material, and wherein the optical material is configured to act as a waveguide when a laser beam having a power of greater than one watt is incident upon the optical material.Type: GrantFiled: September 2, 2015Date of Patent: May 8, 2018Assignee: Physical Sciences, Inc.Inventor: Peter F. Moulton
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Patent number: 9797798Abstract: An apparatus for detecting leaks from a gas pipeline or storage system includes a light source configured to emit a beam with at least one spectral component capable of interacting with pipeline gas, a reflector configured to reflect a portion of the beam, an optical detector configured to detect the reflected beam, a signal processing module coupled to the output of the optical detector configured to analyze the detected beam and output a measured concentration value that characterizes the amount of target gas in the beam path, and a statistical processing module coupled to the signal processing module configured to store and analyze the measured concentration value. The statistical processing module is further configured to compute a value based on statistical information associated with the stored plurality of concentration values and compare the computed value to a first predetermined threshold, and transmit a first alarm signal if the computed value is greater than the first predetermined threshold.Type: GrantFiled: January 24, 2014Date of Patent: October 24, 2017Assignee: Physical Sciences, Inc.Inventor: Michael B. Frish
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Patent number: 9789016Abstract: A lightweight flexible patient litter includes, in one example, spaced compression longerons each foldable at spaced legs, a bed between the compression longerons, and a longitudinal truss structure on each side of the litter each including a longeron, its spaced legs, and one or more flexible tension members connected thereto. One or more lateral truss structures may each include opposing legs on each side of the litter and one or more flexible tension members connected thereto. A bed truss structure may include one or more tension members.Type: GrantFiled: May 13, 2015Date of Patent: October 17, 2017Assignee: Physical Sciences, Inc.Inventors: Peter A. Warren, David J. Shane
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Patent number: 9655521Abstract: A dual-modality apparatus for imaging of biological tissue includes a reflectance confocal microscopy (RCM) imaging apparatus and an optical coherence tomography (OCT) imaging apparatus. A first optical component reflects a first beam of light provided by a RCM imaging apparatus towards a sample and passes a second beam of light provided by an OCT imaging apparatus towards the sample, such that the first and second beam of lights share at least a portion of an imaging path.Type: GrantFiled: January 31, 2013Date of Patent: May 23, 2017Assignees: Physical Sciences, Inc., Memorial Sloan-Kettering Cancer CenterInventors: Nicusor V. Iftimia, Mircea Mujat, R. Daniel Ferguson, Ankit H. Patel, Milind Rajadhyaksha
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Patent number: 9647414Abstract: A laser and methods for providing a continuous wave output beam. The laser and method includes positioning a micro-plasma chip capable of creating micro-plasmas within a resonant cavity. A gas is input into the resonant cavity and flows around the micro-plasma chip. Micro-plasmas ignite and excite the gas to create metastables. The metastables are further excited by an optical pump having an energy sufficient to cause the metastables to lase.Type: GrantFiled: January 30, 2014Date of Patent: May 9, 2017Assignee: Physical Sciences, Inc.Inventors: W. Terry Rawlins, Steven J. Davis, Kristin Galbally-Kinney, Jeffrey Hopwood, Alan Hoskinson
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Patent number: 9546101Abstract: An apparatus for the concentration of suspended algae particles in an aqueous solution. The apparatus includes an electrolytic cell containing at least an anode and a cathode, and a filter. The electrolytic cell receives a solution containing suspended algae particles therein. A power supply is near the filter. A zone of depleted suspended algae particles is near the filter, formed under the influence of an applied electric field from the power supply.Type: GrantFiled: June 24, 2015Date of Patent: January 17, 2017Assignees: FARADAY TECHNOLOGY, INC., PHYSICAL SCIENCES, INC.Inventors: E. Jennings Taylor, Maria E. Inman, Joseph Kell, Heather McCrabb, Anthony Ferrante, Ross Youngs, John Nicholas Meister, James Robert Cook
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Publication number: 20160301182Abstract: A laser and methods for providing a continuous wave output beam. The laser and method includes positioning a micro-plasma chip capable of creating micro-plasmas within a resonant cavity. A gas is input into the resonant cavity and flows around the micro-plasma chip. Micro-plasmas ignite and excite the gas to create metastables. The metastables are further excited by an optical pump having an energy sufficient to cause the metastables to lase.Type: ApplicationFiled: January 30, 2014Publication date: October 13, 2016Applicant: Physical Sciences, Inc.Inventors: W. Terry Rawlins, Steven J. Davis
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Patent number: 9466939Abstract: A method of operating a Tm:doped fiber amplifier including selecting a length of Tm:doped optical fiber to be less than one hundred meters, doping the optical fiber with active ions at a doping level of greater than one percent, optically pumping the doped optical fiber with a first laser beam having a wavelength longer than the wavelength where a maximum absorption cross section is provided by the active ions, and creating a population inversion between two active ion energy levels with the first laser beam, the active ions providing a gain to a second laser beam.Type: GrantFiled: September 2, 2015Date of Patent: October 11, 2016Assignee: Physical Sciences, Inc.Inventors: Peter F. Moulton, Robert Stegeman
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Patent number: 9394586Abstract: The coal ash can be sorted into groups of substantially unburned carbon and substantially burned carbon. The substantially unburned carbon or the substantially burned carbon can be magnetically treated to cause separation into a substantially magnetic portion and a substantially non-magnetic portion. The substantially magnetic portion or the substantially non-magnetic portion can be filtered into a substantially course portion and a substantially fine portion. The substantially coarse portion or the substantially fine portion can be treated with a mineral acid to form an aqueous mineral acid solution. The aqueous mineral acid solution can be extracted to form an organic solution that includes the rare earth salts. The organic solution can be mixed with water to form an aqueous solution that includes the rare earth salts. The rare earth salts can be separated from the aqueous solution.Type: GrantFiled: October 8, 2014Date of Patent: July 19, 2016Assignee: Physical Sciences, Inc.Inventors: Prakash B. Joshi, Dorin V. Preda, David A. Skyler, Anait Scherer, B. David Green, William J. Marinelli
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Patent number: 9388090Abstract: 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: GrantFiled: October 11, 2012Date of Patent: July 12, 2016Assignee: Physical Sciences, Inc.Inventors: Prakash B. Joshi, Lawrence G. Piper, David B. Oakes, Justin L. Sabourin, Adam J. Hicks, B. David Green, Anait Tsinberg, Allan Dokhan
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Publication number: 20150291455Abstract: An apparatus for the concentration of suspended algae particles in an aqueous solution. The apparatus includes an electrolytic cell containing at least an anode and a cathode, and a filter. The electrolytic cell receives a solution containing suspended algae particles therein. A power supply is near the filter. A zone of depleted suspended algae particles is near the filter, formed under the influence of an applied electric field from the power supply.Type: ApplicationFiled: June 24, 2015Publication date: October 15, 2015Applicants: Faraday Technology, Inc., Algaeventure Systems, Physical Sciences, Inc.Inventors: E. Jennings Taylor, Maria E. Inman, Joseph Kell, Heather McCrabb, Anthony Ferrante, Ross Youngs, John Nicholas Meister, James Robert Cook
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Patent number: 9108370Abstract: 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: GrantFiled: October 18, 2012Date of Patent: August 18, 2015Assignee: Physical Sciences, Inc.Inventors: Prakash B. Joshi, David B. Oakes, Edward J. Salley, Allan Dokhan, Kophu Chiang, Alan Gelb, John Hagge, B. David Green