Patents by Inventor Keith Davies

Keith Davies 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).

  • Patent number: 9618164
    Abstract: An adapter is provided for retrofitting a lighting fixture with a light emitting diode (LED) lamp. The adapter includes a pin plate and a retaining ring. The pin plate includes at least one pin extending outward from a distal side of the pin plate. The retaining ring includes a base, at least one arm, and at least one projecting member, each having inward and outward surfaces. The at least one pin restricts movement of the adapter when the adapter is rotated to a restraining position. The at least one projecting member causes the inward surface of the at least one projecting member to face the inward surface of the base. The at least one projecting member restricts movement of the adapter in a direction corresponding to an axis of rotation of the adapter using the at least one projecting member.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: April 11, 2017
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Travis L. Berry, Keith Davis, Theodore E. Kluska, Wei Xiong
  • Patent number: 9583073
    Abstract: A constant current LED driver with adaptive startup voltage control is generally configured to provide output current to an LED load. A controller is configured to sense the output current, and to provide driving control signals as a function thereof to maintain the sensed current at a target current. During startup operation, the controller provides driving control signals further as a function of a first defined maximum output voltage value. During steady state operation, the driving control signals are provided as a function of a second defined maximum output voltage value. The maximum values may be set according to forward voltage drop values for the LED load in association with first and second temperatures, respectively. During transition operations, the maximum output voltage value is continuously adjusted between the first and second maximum output voltage values, such that the LED load exceeds its warm up time prior to steady state operation.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: February 28, 2017
    Assignee: UNIVERSAL LIGHTING TECHNOLOGIES, INC.
    Inventors: Wei Xiong, Keith Davis
  • Patent number: 9572286
    Abstract: A modular thermal isolation barrier for use in sealing gaps in a data processing equipment structure includes an extruded edge seal and a panel. The extruded edge seal has a seal portion and a base portion with one or more channels. An edge of the panel is disposed within one of the one or more channels of the base portion of the edge seal such that the edge seal is seated against the edge of the panel with the seal portion in position to abut, and establish a seal with, an adjacent structure.
    Type: Grant
    Filed: September 26, 2015
    Date of Patent: February 14, 2017
    Assignee: Chatsworth Products, Inc.
    Inventors: Joshua Blaine Greeson, Steven J. Gibble, Joshua James Young, Jared Keith Davis
  • Patent number: 9462655
    Abstract: A surge protection device provides a dimming control signal to an LED driving system upon failure of surge protection components. Impedance networks are coupled between respective first, second and third input lines for an AC mains. The impedance networks include thermal fuses and metal oxide varistors, with a dimming control circuit having a resistive network coupled between each respective series circuit of fuses and MOV's. The resistive network generates a 0-10V analog dimming signal to an LED device controller, wherein a lighting device operates in full lighting mode while the surge protection device is in normal, high impedance mode, but operates in a dimming mode when one or more of the impedance network devices fail and cause the 0-10V signal to drop below 10 volts. Detection of a dimmed but operable lighting device may serve as warning to an operator that the associated surge protection device component should be replaced.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: October 4, 2016
    Assignee: UNIVERSAL LIGHTING TECHNOLOGIES, INC.
    Inventor: Keith Davis
  • Patent number: 9400257
    Abstract: A system includes a polymeric housing and a first connector in electrically conductive connection with a first component within the housing. The first connector includes a first extending member formed from a conductive loaded polymeric material. The first extending member is formed such that an interior thereof includes conductive elements within a matrix of the polymeric material so that the interior is electrically conductive and an exterior surface thereof comprises the polymeric material and is less conductive than the conductive interior. The conductive interior of the first extending member is in electrically conductive connection with the first component. The first connector further includes a first extending conductive element in electrical connection with the conductive interior of the first extending member. The first extending conductive element extends from the first extending member to pass through the polymeric housing.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: July 26, 2016
    Assignee: MSA TECHNOLOGY, LLC
    Inventors: Michael Alvin Brown, Brian Keith Davis, Towner Bennet Scheffler
  • Patent number: 9369050
    Abstract: An LED driver circuit includes circuitry for indirect sensing of an isolated output current. A rectifier circuit produces DC power to a power factor correction circuit including a switch and a primary transformer winding. An LED array is coupled to a secondary winding of the transformer. An auxiliary transformer winding is coupled to a feedback circuit which generates a feedback signal that is representative of the output current without receiving any direct feedback from the secondary side of the transformer. A capacitor may be coupled across the auxiliary winding, which charges and discharges energy as the switch is driven on and off. A controller further drives the switch based on comparison of an average voltage across the capacitor with respect to a reference value corresponding to desired output current through the load. The reference value may be provided to the controller from an external dimming control circuit.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: June 14, 2016
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Wei Xiong, Travis L. Berry, Keith Davis
  • Patent number: 9295143
    Abstract: A lighting system includes circuitry to provide wireless LED driver or fluorescent ballast control without requiring changes to existing wiring setups. A power stage includes a power converter coupled across a first set of power terminals. The first power terminals are coupled to a second set of terminals via the wiring. A load stage is coupled to the second power terminals, wherein power provided across the first set of terminals is received by the load stage and deliverable to lighting devices. The load stage further includes a dimming control signal receiver coupled across the second set of power terminals and configured to receive an encoded dimming control signal. The encoded signal is transmitted across the wiring setup, wherein the power stage further includes a dimming control signal decoder coupled across the first set of power terminals and effective to deliver a decoded dimming control signal to the controller.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: March 22, 2016
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Wei Xiong, Travis L. Berry, Keith Davis
  • Publication number: 20160068735
    Abstract: The invention relates to cementitious or grout compositions and drilling fluids including reinforcement fibers and methods relating thereto. The cementitious or grout compositions include dry blend material and reinforcement fibers. Each of the fibers can have one or more of a pre-selected mean length, denier, diameter and aspect ratio to improve dispersion in dry blending the cementitious or grout compositions.
    Type: Application
    Filed: September 10, 2015
    Publication date: March 10, 2016
    Applicant: FORTA CORPORATION
    Inventors: Daniel T. Biddle, Jeffrey B. Lovett, Keith Davis, Christopher P. Lovett
  • Patent number: 9276779
    Abstract: Systems and methods for providing a full fail-safe capability in signal transmission networks are disclosed. For example, a system for providing a full fail-safe capability in signal transmission networks includes at least a first electronic circuit to transmit and receive signals or data, at least one driver unit coupled to the at least a first electronic circuit, and at least one receiver unit coupled to the at least a first electronic circuit and the at least one driver unit. The at least one receiver unit includes at least one offset signal generating unit, a signal comparing unit, and a switching unit to couple an offset signal from the at least one offset signal generating unit to an input of the signal comparing unit.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: March 1, 2016
    Assignee: Intersil Americas LLC
    Inventors: Christopher Keith Davis, Jeffrey David Lies
  • Patent number: 9066906
    Abstract: A method of purifying lunasin or a lunasin-containing complex produced in a plant includes providing a plant material from the plant, and isolating the lunasin-containing complex from the plant material, and/or releasing lunasin from the lunasin-containing complex. A composition for treating a cancer or an inflammation-related disease in a subject includes a lunasin-containing complex. A composition for treating a cancer or an inflammation-related disease in a subject includes a lunasin polypeptide and/or a lunasin-containing complex; and curcumin, wherein the combination of the a lunasin polypeptide or lunasin-containing complex and the curcumin has a synergistic effect. A method for treating a cancer or an inflammation-related disease includes administering a composition including a lunasin-containing complex, or a lunasin polypeptide and/or a lunasin-containing complex, and curcumin.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: June 30, 2015
    Assignee: University of Louisville Research Foundation, Inc.
    Inventors: Keith Davis, Brian Barnett, Jian Cai, Elizabeth McConnell
  • Patent number: 8971387
    Abstract: Systems and methods for providing a full fail-safe capability in signal transmission networks are disclosed. For example, a system for providing a full fail-safe capability in signal transmission networks includes at least a first electronic circuit to transmit and receive signals or data, at least one driver unit coupled to the at least a first electronic circuit, and at least one receiver unit coupled to the at least a first electronic circuit and the at least one driver unit. The at least one receiver unit includes at least one offset signal generating unit, a signal comparing unit, and a switching unit to couple an offset signal from the at least one offset signal generating unit to an input of the signal comparing unit.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: March 3, 2015
    Assignee: Intersil Americas LLC
    Inventors: Christopher Keith Davis, Jeffrey David Lies
  • Publication number: 20150030057
    Abstract: Systems and methods for providing a full fail-safe capability in signal transmission networks are disclosed. For example, a system for providing a full fail-safe capability in signal transmission networks includes at least a first electronic circuit to transmit and receive signals or data, at least one driver unit coupled to the at least a first electronic circuit, and at least one receiver unit coupled to the at least a first electronic circuit and the at least one driver unit. The at least one receiver unit includes at least one offset signal generating unit, a signal comparing unit, and a switching unit to couple an offset signal from the at least one offset signal generating unit to an input of the signal comparing unit.
    Type: Application
    Filed: October 14, 2014
    Publication date: January 29, 2015
    Inventors: Christopher Keith Davis, Jeffrey David Lies
  • Patent number: 8911914
    Abstract: A manifold assembly for use with a fuel cell stack for the purpose of ensuring a desired flow distribution to fuel cells within the stack, with the most commonly desired being uniform flow distribution. Said manifold assembly comprising: an external manifold for abutting and sealingly enclosing a face of the fuel cell stack, wherein the manifold comprises an enclosure for one of: providing inlet gas to the fuel cell stack and receiving exhaust gas from said fuel cell stack; and one or more baffles disposed in the enclosure of the external manifold, the one or more baffles one of: (a) controlling gas flow distribution and direction of the inlet gas from the enclosure to fuel cells of the fuel cell stack to achieve a predetermined distribution or a uniform distribution; and (b) controlling gas flow distribution of the exhaust gas flow within the enclosure to achieve the predetermined distribution or the uniform distribution of gas to fuel cells of the fuel cell stack.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 16, 2014
    Assignee: FuelCell Energy, Inc.
    Inventors: Joseph P. McInerney, Louis F. Ernst, Jr., Mohammad Farooque, Ramakrishnan Venkataraman, Eric Hansell, Daniela Nedu, Keith Davis, William Snyder, Michael Quatannens
  • Patent number: 8906966
    Abstract: This invention relates to medicaments and their use in the alleviation of inflammation and pain in joints.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: December 9, 2014
    Inventors: Paul Sherwood, David Keith Davies
  • Publication number: 20140290920
    Abstract: An air to air heat exchanger includes a first and a second cooling air flow passage extending over a core depth of the heat exchanger. A heated air flow passage is arranged between the cooling air flow passages, and extends over a first percentage of the core depth. Thermally conductive separators are arranged between the heated air flow passage and each of the cooling air flow passages. A first structurally reinforced section is provided between the separators, and extends from a cooling air inlet face in the core depth direction over a second percentage of the core depth. A second structurally reinforced section is provided between the separators, and extends from a cooling air outlet face in the core depth direction over a third percentage of the core depth. The sum of the first, second, and third percentages is greater than 100 percent.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicant: Modine Manufacturing Company
    Inventors: Zachary Ouradnik, Keith Davis, Issac Dandan, Kenneth Cornell, Benjamin Ranta, Daniel Richards
  • Publication number: 20140194516
    Abstract: This invention relates to medicaments and their use in the alleviation of inflammation and pain in joints.
    Type: Application
    Filed: August 5, 2013
    Publication date: July 10, 2014
    Applicant: Prototype Bioforum Ltd.
    Inventors: Paul Sherwood, David Keith Davies
  • Publication number: 20140182829
    Abstract: A tube assembly for use in a heat exchanger includes a flat section with broad and flat opposing tube sides. Fin structures are bonded to the broad and flat tube sides in the flat section, and side sheets are bonded to the opposite ends of the fin structures. The flat section of the tube is located between cylindrical end sections adapted to be inserted into grommets. The construction of the tube assembly provides a stiff structure to survive insertion and removal of tube assemblies to and from a heat exchanger, for example, a radiator for heavy duty equipment.
    Type: Application
    Filed: February 7, 2014
    Publication date: July 3, 2014
    Applicant: Modine Manufacturing Co.
    Inventors: Zachary Ouradnik, Girish Mantri, Brian Merklein, Eric Lindell, John Kis, JR., Keith Davis, Michael McGregor, Gregory Hughes
  • Patent number: 8702935
    Abstract: An electrochemical gas sensor includes a housing, a first working electrode within the housing and having a first section of gas transfer medium and a first layer of catalyst on the first section of gas transfer medium, and at least a second working electrode within the housing and having a second section of gas transfer medium and a second layer of catalyst on the second section of gas transfer medium. At least one of the first section of gas transfer medium and the second section of gas transfer medium includes at least one area in which the structure thereof has been irreversibly altered to limit diffusion of gas through the at least one of the first section of gas transfer medium or the second section of gas transfer medium toward the other of the at least one of the first section of gas transfer medium and the second section of gas transfer medium.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: April 22, 2014
    Assignee: Mine Safety Appliances Company
    Inventors: Brian Keith Davis, Towner Bennett Scheffler, Michael Alvin Brown
  • Publication number: 20140060519
    Abstract: A method of generating steam for use in an industrial process is disclosed. The industrial process may for example be power generation or desalination. The method comprises: (a) pressurising a working fluid liquid comprising water to a first pressure; (b) heating the working fluid liquid to a temperature substantially equal to the saturation temperature of the working fluid liquid at the first pressure; and (c) flash evaporating the working fluid liquid to generate steam. The pressurised working fluid liquid is heated in step (b) by direct heating in a solar radiation absorption device. Also disclosed is an apparatus for generating steam for use in an industrial process.
    Type: Application
    Filed: March 26, 2012
    Publication date: March 6, 2014
    Inventors: David Bent, Keith Davies
  • Patent number: D767369
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: September 27, 2016
    Assignee: PROTECTAPET LTD
    Inventor: Simon Keith Davies