Patents by Inventor William Erwin
William Erwin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11975807Abstract: An aquatic rescue vehicle formed by adding directional and speed controls to a watercraft along with an autonomous control system to guide the vehicle to specified waypoints is disclosed. The rescue vehicle includes search devices such as a radio direction finder (RDF) and an infrared sensor (or camera) to be used to narrow the search for an isolated person (IP). The rescue vehicle may be discharged from a larger watercraft or an airplane and autonomously set out on its rescue mission. The vehicle may first navigate to a designated waypoint near an IP, and then use signals gathered from the RDF and infrared sensor to finally locate, assist, and retrieve the IP. The vehicle also includes a self-righting mechanism so that the vehicle can complete its mission even under the most adverse conditions.Type: GrantFiled: September 20, 2021Date of Patent: May 7, 2024Assignee: United States of America as represented by the Secretary of the Air ForceInventors: Hayk Azatyan, William Erwin, Anthony Ligouri, Travis Rennich, David Shald, Adam Warren
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Patent number: 11967104Abstract: A method of determining the location of an object in a camera field of view is disclosed. The method may utilize a camera system that includes a digital video camera and a computer that runs image analysis software for analyzing images received from the camera. The image analysis software is configured to isolate pixel groups in each image. The method includes the steps of locating an object in the camera's field of view in which the object is represented by a set of pixels; identifying the centroid of the set of pixels representing the object; and calculating the location of the object relative to the camera based upon known parameters including the focal plane and camera lens location.Type: GrantFiled: November 29, 2021Date of Patent: April 23, 2024Assignee: United States of America as represented by the Secretary of the Air ForceInventors: Anthony Ligouri, Hayk Azatyan, William Erwin, Travis Rennich, David Shald, Adam Warren
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Patent number: 11862758Abstract: The present disclosure relates to a lighting component which may comprise a light emitting diode (LED) or laser diode (LD) for generating at least one of blue light or ultraviolet light. A fluoride phosphor matrix may be included, which may be consolidated into a phosphor ceramic structure including at least one of a transparent fluoride ceramic structure or a translucent fluoride ceramic structure, and positioned adjacent to the LED or LD. The phosphor ceramic structure generates at least one of red or orange light when irradiated by the light emitted from the LED or LD. The phosphor ceramic structure exhibits reduced thermal quenching relative to a fluoride particulate structure irradiated by the LED or LD.Type: GrantFiled: November 26, 2019Date of Patent: January 2, 2024Assignees: Lawrence Livermore National Security, LLC, Current Lighting Solutiosn, LLCInventors: Nerine Cherepy, Ross Allen Osborne, Stephen A. Payne, Zachary Seeley, Alok Srivastava, William Winder Beers, William Erwin Cohen
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Patent number: 11477945Abstract: A lighting device is presented. The lighting device includes an LED light source; and a red/far-red emitting phosphor radiationally coupled to the LED light source, wherein the red/far-red emitting phosphor comprises a host material activated with an activator ion, and wherein the activator ion comprises at least one of Sm2+ and Mn2+. Numerous other aspects are provided.Type: GrantFiled: March 12, 2020Date of Patent: October 25, 2022Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: William Winder Beers, William Erwin Cohen, Alok Srivastava
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Patent number: 11114591Abstract: A coated phosphors that include a shell comprising a first Mn4+ doped phosphor of formula I Ax[MFy]:Mn4+??I directly disposed on a core comprising a second phosphor. The second phosphor is a material other than a compound of formula I or formula II Ax[MFy]??II wherein A is, independently at each occurrence, Li, Na, K, Rb, Cs, or a combination thereof; M is, independently at each occurrence, Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; and y is 5, 6 or 7.Type: GrantFiled: August 17, 2016Date of Patent: September 7, 2021Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: James Edward Murphy, William Winder Beers, William Erwin Cohen
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Patent number: 10920938Abstract: The specification and drawings present a new apparatus such as a lighting apparatus, the apparatus comprising at least one LED (or OLED) module, configured to generate a visible light such as white light, and at least one component such as optical component comprising a compound consisting essentially of the elements neodymium (Nd) and fluorine (F), and optionally including one or more other elements. The lighting apparatus is configured to provide a desired light spectrum by filtering the generated visible light using the compound. The at least one component can comprise a NdFxOy compound with values of x and y determining a content ratio F/O, which may be adjusted during manufacturing of the NdFxOy compound to provide desired output light parameters of the apparatus including at least a desired output light spectrum realized by filtering the generated visible light using the NdFxOy compound.Type: GrantFiled: April 14, 2020Date of Patent: February 16, 2021Assignee: Savant Technologies LLCInventors: Kevin Jeffrey Benner, Thomas J. Boyle, Dengke Cai, Thomas Clynne, William Erwin Cohen, Jean-Patrick Ducroux, Jianmin He, Jon Bennett Jansma, Chuan Lin, Juliana P. Reisman, Alok Mani Srivastava, Benjamin James Ward, Zhiyong Wang, William Robert Wright, Qing Yi
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Patent number: 10851293Abstract: A method includes mixing a first fluoride phosphor powder that is doped with tetravalent manganese with a treatment solution for a designated period of time, stopping the mixing to allow the fluoride phosphor powder to settle, removing at least some liquid that has separated from the first fluoride phosphor powder, repeating (a) the mixing, (b) the stopping of the mixing, and (c) removing at least some of the liquid during one or more additional cycles, and obtaining a second fluoride phosphor powder following the repeating of the mixing, the stopping of the mixing, and the removing of at least some of the liquid. The second fluoride phosphor powder includes a reduced amount of the manganese relative to the first fluoride phosphor powder.Type: GrantFiled: January 20, 2017Date of Patent: December 1, 2020Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: Fangming Du, William Winder Beers, William Erwin Cohen, Clark David Nelson
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Publication number: 20200326042Abstract: The specification and drawings present a new apparatus such as a lighting apparatus, the apparatus comprising at least one LED (or OLED) module, configured to generate a visible light such as white light, and at least one component such as optical component comprising a compound consisting essentially of the elements neodymium (Nd) and fluorine (F), and optionally including one or more other elements. The lighting apparatus is configured to provide a desired light spectrum by filtering the generated visible light using the compound. The at least one component can comprise a NdFxOy compound with values of x and y determining a content ratio F/O, which may be adjusted during manufacturing of the NdFxOy compound to provide desired output light parameters of the apparatus including at least a desired output light spectrum realized by filtering the generated visible light using the NdFxOy compound.Type: ApplicationFiled: April 14, 2020Publication date: October 15, 2020Applicant: Consumer Lighting (U.S.), LLCInventors: Kevin Jeffrey BENNER, Thomas J. BOYLE, Dengke CAI, Thomas CLYNNE, William Erwin COHEN, Jean-Patrick DUCROUX, Jianmin HE, Jon Bennett JANSMA, Chuan LIN, Juliana P. REISMAN, Alok Mani SRIVASTAVA, Benjamin James WARD, Zhiyong WANG, William Robert WRIGHT, Qing YI
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Publication number: 20200288642Abstract: A lighting device is presented. The lighting device includes an LED light source; and a red/far-red emitting phosphor radiationally coupled to the LED light source, wherein the red/far-red emitting phosphor comprises a host material activated with an activator ion, and wherein the activator ion comprises at least one of Sm2+ and Mn2+. Numerous other aspects are provided.Type: ApplicationFiled: March 12, 2020Publication date: September 17, 2020Inventors: William Winder BEERS, William Erwin COHEN, Alok SRIVASTAVA
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Publication number: 20200168770Abstract: The present disclosure relates to a lighting component which may comprise a light emitting diode (LED) or laser diode (LD) for generating at least one of blue light or ultraviolet light. A fluoride phosphor matrix may be included, which may be consolidated into a phosphor ceramic structure including at least one of a transparent fluoride ceramic structure or a translucent fluoride ceramic structure, and positioned adjacent to the LED or LD. The phosphor ceramic structure generates at least one of red or orange light when irradiated by the light emitted from the LED or LD. The phosphor ceramic structure exhibits reduced thermal quenching relative to a fluoride particulate structure irradiated by the LED or LD.Type: ApplicationFiled: November 26, 2019Publication date: May 28, 2020Inventors: Nerine CHEREPY, Ross Allen OSBORNE, Stephen A. PAYNE, Zachary SEELEY, Alok Mani SRIVASTAVA, William Winder BEERS, William Erwin COHEN
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Patent number: 10619803Abstract: The specification and drawings present a new apparatus such as a lighting apparatus, the apparatus comprising at least one LED (or OLED) module, configured to generate a visible light such as white light, and at least one component such as optical component comprising a compound consisting essentially of the elements neodymium (Nd) and fluorine (F), and optionally including one or more other elements. The lighting apparatus is configured to provide a desired light spectrum by filtering the generated visible light using the compound. The at least one component can comprise a NdFxOy compound with values of x and y determining a content ratio F/O, which may be adjusted during manufacturing of the NdFxOy compound to provide desired output light parameters of the apparatus including at least a desired output light spectrum realized by filtering the generated visible light using the NdFxOy compound.Type: GrantFiled: March 16, 2016Date of Patent: April 14, 2020Assignee: Consumer Lighting (U.S.), LLCInventors: Kevin Jeffrey Benner, Thomas J. Boyle, Dengke Cai, Thomas Clynne, William Erwin Cohen, Jean-Patrick Ducroux, Jianmin He, Jon Bennett Jansma, Chuan Lin, Juliana P. Reisman, Alok Mani Srivastava, Benjamin James Ward, Zhiyong Wang, William Robert Wright, Qing Yi
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Patent number: 10563121Abstract: A method includes obtaining particles of a phosphor precursor of formula Ax[MFy]:Mn4+, reducing sizes of the particles of the phosphor precursor by wet milling the particles and annealing the particles that are wet milled by contacting the particles with a fluorine-containing oxidizing agent. Additionally, a manganese doped complex fluoride phosphor prepared by this method is provided. A lighting apparatus and backlight device that include manganese-doped phosphor prepared by this method also are provided.Type: GrantFiled: June 2, 2016Date of Patent: February 18, 2020Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: William Winder Beers, Jianmin He, Fangming Du, James Edward Murphy, William Erwin Cohen, Clark David Nelson, Cynthia Susan Link
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Publication number: 20190086038Abstract: The specification and drawings present a new apparatus such as a lighting apparatus, the apparatus comprising at least one LED (or OLED) module, configured to generate a visible light such as white light, and at least one component such as optical component comprising a compound consisting essentially of the elements neodymium (Nd) and fluorine (F), and optionally including one or more other elements. The lighting apparatus is configured to provide a desired light spectrum by filtering the generated visible light using the compound. The at least one component can comprise a NdFxOy compound with values of x and y determining a content ratio F/O, which may be adjusted during manufacturing of the NdFxOy compound to provide desired output light parameters of the apparatus including at least a desired output light spectrum realized by filtering the generated visible light using the NdFxOy compound.Type: ApplicationFiled: March 16, 2016Publication date: March 21, 2019Inventors: Kevin Jeffrey BENNER, Thomas J. BOYLE, Dengke CAI, Thomas CLYNNE, William Erwin COHEN, Jean-Patrick DUCROUX, Jianmin HE, Jon Bennett JANSMA, Chuan LIN, Juliana P. REISMAN, Alok Mani SRIVASTAVA, Benjamin James WARD, Zhiyong WANG, William Robert WRIGHT, Qing YI
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Patent number: 10047286Abstract: A process for preparing a Mn+4 doped phosphor of formula I Ax[MFy|:Mn+4??I includes gradually adding a first solution to a second solution and periodically discharging the product liquor from the reactor while volume of the product liquor in the reactor remains constant; wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; and y is 5, 6 or 7. The first solution includes a source of M and HF and the second solution includes a source of Mn to a reactor in the presence of a source of A.Type: GrantFiled: November 24, 2015Date of Patent: August 14, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Fangming Du, William Winder Beers, William Erwin Cohen, Clark David Nelson, Jenna Marie Novak, John Matthew Root, James Edward Murphy, Srinivas Prasad Sista
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Publication number: 20180053881Abstract: A coated phosphors that include a shell comprising a first Medoped phosphor of formula I Ax[MFy]:Mn4+??I directly disposed on a core comprising a second phosphor. The second phosphor is a material other than a compound of formula I or formula II Ax[MFy]??II wherein A is, independently at each occurrence, Li, Na, K, Rb, Cs, or a combination thereof; M is, independently at each occurrence, Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; and y is 5, 6 or 7.Type: ApplicationFiled: August 17, 2016Publication date: February 22, 2018Inventors: James Edward Murphy, William Winder Beers, William Erwin Cohen
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Patent number: 9890328Abstract: A lighting apparatus that includes a light source and a phosphor composition radiationally coupled to the light source is presented. The phosphor composition includes a first phosphor that includes a phase of general formula (I): L3ZO4(Br2-nXn):Eu2+ wherein 0?n?1; L is Zn, Mg, Ca, Sr, Ba, or combinations thereof; Z is Si, Ge, or a combination thereof; and X is F, Cl, I, or combinations thereof.Type: GrantFiled: June 23, 2015Date of Patent: February 13, 2018Assignee: General Electric CompanyInventors: Samuel Joseph Camardello, Alok Mani Srivastava, Fangming Du, Holly Ann Comanzo, William Winder Beers, William Erwin Cohen
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Publication number: 20170298273Abstract: A method includes mixing a first fluoride phosphor powder that is doped with tetravalent manganese with a treatment solution for a designated period of time, stopping the mixing to allow the fluoride phosphor powder to settle, removing at least some liquid that has separated from the first fluoride phosphor powder, repeating (a) the mixing, (b) the stopping of the mixing, and (c) removing at least some of the liquid during one or more additional cycles, and obtaining a second fluoride phosphor powder following the repeating of the mixing, the stopping of the mixing, and the removing of at least some of the liquid. The second fluoride phosphor powder includes a reduced amount of the manganese relative to the first fluoride phosphor powder.Type: ApplicationFiled: January 20, 2017Publication date: October 19, 2017Inventors: Fangming Du, William Winder Beers, William Erwin Cohen, Clark David Nelson
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Publication number: 20170286965Abstract: A protection system for tracking and securing the purchase and sale of a controlled substance. The system includes a network and a database that stores information of a plurality of customers. The information regarding each customer is stored in an individual account, and the database further stores the information regarding government regulations on purchase and sale of the controlled substance. Also, the system includes a plurality of end user terminals to record transactions of the controlled substance. There is a server in communication with the database and the end user terminals over the network. The server includes a compliance reporting system. The compliance reporting system executes instructions to compare, in real time, information about one customer and the transaction to information stored in the database regarding the government regulations and the customer. In one embodiment, the system prevents the purchase of the controlled substance based on the comparison.Type: ApplicationFiled: March 31, 2016Publication date: October 5, 2017Applicant: Shield Compliance, LLCInventors: William Erwin, Noah P. Carey
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Patent number: 9633830Abstract: Coating systems suitable for use in generating fluorescent visible light, and lamps provided with such coating systems. The coating systems includes a phosphor-containing coating that contains at least a first phosphor that is predominantly excited by ultraviolet radiation of a first wavelength to emit visible light and absorbs but is less efficiently excited by ultraviolet radiation of a second wavelength. The coating system further includes a second phosphor that absorbs the ultraviolet radiation of the second wavelength and little if any of the ultraviolet radiation of the first wavelength.Type: GrantFiled: August 28, 2014Date of Patent: April 25, 2017Assignee: GENERAL ELECTRIC COMPANYInventors: Alok Mani Srivastava, William Winder Beers, Fangming Du, William Erwin Cohen
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Patent number: 9605199Abstract: Blue and green-emitting Eu2+-activated oxyhalide phosphors of formula A-E may be used in devices for lighting or display applications: A. M3SiO3X4:Eu2+; B. M5Si3O9X4:Eu2+; C. M1.64Si0.82O3.1X0.36:Eu2+; D. M10Si3O9X14:Eu2+; E. M2SiO3X2:Eu2+; and wherein M is Ba, Ca, Sr, or a mixture thereof; X is Cl or Br, or a mixture thereof.Type: GrantFiled: March 31, 2016Date of Patent: March 28, 2017Assignee: General Electric CompanyInventors: Sam Joseph Camardello, Alok Mani Srivastava, Holly Ann Comanzo, William Winder Beers, Fangming Du, William Erwin Cohen