Patents by Inventor David Brown

David Brown 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: 11202542
    Abstract: A robotic cleaner includes a housing, a suction conduit with an opening, and a leading roller mounted in front of a brush roll. An inter-roller air passageway may be defined between the leading roller and the brush roll wherein the lower portion of the leading roller is exposed to a flow path to the suction conduit and an upper portion of the leading roller is outside of the flow path. Optionally, a combing unit includes a plurality of combing protrusions extending into the leading roller and having leading edges not aligned with a center of the leading roller. Optionally, a sealing strip is located along a rear side of the opening and along a portion of left and right sides of the opening. The underside may define side edge vacuum passageways extending from the sides of the housing partially between the leading roller and the sealing strip towards the opening.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: December 21, 2021
    Assignee: SharkNinja Operating LLC
    Inventors: Steven Paul Carter, Adam Udy, Catriona A. Sutter, Christopher Pinches, David S. Clare, Andre David Brown, John Freese, Patrick Cleary, Alexander J. Calvino, Lee Cottrell, Daniel Meyer, Daniel John Innes, David Jalbert, Jason B. Thorne, Peter Hutchinson, Gordon Howes, Wenxiu Gao, David Wu, David W. Poirier, Daniel R. Der Marderosian
  • Patent number: 11204136
    Abstract: Light emitting diode (LED) light tubes having rotatable end cap assemblies are described. The LED light tubes include a hollow tube and a circuit board with LED chips thereon. The end cap assemblies are provided on either end of the tube. Each end cap assembly includes a socket cap, a plug having a plug body and at least one connector, and an end cap body, one end of which engages one of the ends of the hollow tube. A cam locking mount that is positioned within the plug body and on the opposite side has projections to be positioned in the bore of the end cap body. A rotation cam is seated in the cam locking mount and provides for controlled rotation of the LED tube relative to the end caps. Methods of installing the LED light tubes in new installations and retrofit installations and for use in sign assemblies are also described.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: December 21, 2021
    Assignee: Keystone Technologies, LLC
    Inventors: Joshua David Brown, Evan Michael Smith
  • Publication number: 20210388809
    Abstract: A method of operating a hydrostatically compensated compressed air energy storage system in a first charging mode including conveying the compressed air at a nearly constant first operating pressure which displaces a corresponding volume of compensation liquid from the layer of compensation liquid out of the accumulator, and a second charging mode including conveying additional compressed air into the accumulator while compensation liquid is not displaced from within the accumulator so that the pressure of the layer of compressed air increases to a second operating pressure that is greater than the first operating pressure.
    Type: Application
    Filed: February 6, 2020
    Publication date: December 16, 2021
    Inventors: Davin Young, David Brown, Cameron Lewis, Timothy Ross
  • Publication number: 20210372380
    Abstract: Broadly speaking, embodiments of the present techniques provide methods for driving shape memory alloy (SMA) actuator wires in a more power-efficient manner.
    Type: Application
    Filed: September 18, 2019
    Publication date: December 2, 2021
    Inventors: Andrew Benjamin David Brown, Daniel Burbridge
  • Patent number: 11187916
    Abstract: A camera assembly comprises a support structure and an image sensor mounted on a carrier that is suspended on the support structure by at least one plain bearing that allows movement of the carrier and the image sensor relative to the support structure in any direction laterally to the light-sensitive region of the image sensor. An actuator arrangement comprising plural shape memory alloy wires is arranged to move the carrier and the image sensor relative to the support structure for providing optical image stabilisation of the image captured by the image sensor.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: November 30, 2021
    Assignee: CAMBRIDGE MECHATRONICS LIMITED
    Inventor: Andrew Benjamin David Brown
  • Patent number: 11184647
    Abstract: An illustrative interactive content delivery system includes an interactive content player device (player device) and an interactive content provider system (provider system). As the provider system transmits a live video stream to the player device, the player device detects a first event marker in the live video stream, accesses an executable data object including data representative of an interactive content instance, and executes, based on the executable data object, the interactive content instance in accordance with interactive input provided by a user of the player device. During the executing of the interactive content instance, the player device detects a second event marker in the live video stream and subsequently discontinues the executing of the interactive content instance. Corresponding methods and systems are disclosed for both the provider system and the player device of the interactive content delivery system.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: November 23, 2021
    Assignee: Verzon Patent and Licensing Inc.
    Inventors: Mohammad Raheel Khalid, William Robert Davey, Vito Joseph Messina, Carl L. Keifer, III, Oliver S. Castaneda, Scott David Brown
  • Publication number: 20210324447
    Abstract: The present disclosure provides methods, systems, devices, kits, and reagents for performing single cell sequencing (e.g., single cell RNA sequencing) from a low volume, capillary blood (or any low volume blood sample which is not obtained from a vein or by venipuncture).
    Type: Application
    Filed: March 23, 2021
    Publication date: October 21, 2021
    Inventors: Matthew W. Thomson, Tatyana Dobreva, David Brown, Jong Hwee Park
  • Patent number: 11137130
    Abstract: A condensation management system includes a vehicle lighting assembly with an interior vented to an ambient environment through a conduit, a moisture control assembly with a desiccant assembly positioned such that air passing through the conduit passes through the desiccant assembly, and a heater for heating the desiccant assembly in response to a difference between the interior and the ambient environment.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: October 5, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Alan George Dry, David A. Brown, Brian Robert Spahn
  • Publication number: 20210301678
    Abstract: A gas turbine engine, includes: an engine core including a turbine, compressor, and shaft system connecting the turbine to the compressor, and forming a torque path therebetween. The shaft system is axially located by a thrust bearing located forward of the turbine, and the engine is configured, in the event of a shaft break which divides the shaft system into a front portion located by the thrust bearing and a rear portion unlocated by the thrust bearing, the rear portion is free to move axially rearwardly under a gas load. The engine further includes a shaft break detector having a forward speed sensor configured to measure a rotational speed of the front portion of the shaft system, and a rear microwave sensor configured to measure a rotational speed of the rear portion of the shaft system, wherein a shaft break can be detected based on differences in the measured speeds.
    Type: Application
    Filed: March 12, 2021
    Publication date: September 30, 2021
    Applicants: ROLLS-ROYCE plc, ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Jorge CALDERON, David BROWN
  • Publication number: 20210296012
    Abstract: A method and apparatus for energy production comprising providing reactive material containing, at least, an exothermic double electron capture capable isotope and supplying pair-formation energy to at least part of the reactive material to form at least one irreversible double electron capture capable nuclei-pair to produce a net exothermic reaction is disclosed. The reactive material may comprise a metallic alloy. A method and apparatus for energy production comprising heating a three or more element metallic alloy in a chemically inert atmosphere to initiate and/or sustain an exothermic reaction between at least two of the metallic elements of the alloy is herein disclosed. The pressure at the surface of the metallic alloy may be maintained below 1000 atm. The reaction may be initiated, maintained or re-initiated by temperature cycling within a target temperature range.
    Type: Application
    Filed: August 29, 2017
    Publication date: September 23, 2021
    Inventors: Andras KOVACS, David Brown, Fredrik EK
  • Publication number: 20210295438
    Abstract: Embodiments of the invention provide techniques for improving clarity of disclosure materials provided to investors, by enabling securities issuers, intermediaries and/or other entities to create and disseminate clear and concise summary-level information on individual securities to investors to enable informed investment decisions. The information may include a summary version of the full statutory prospectus (a “summary prospectus”). A summary prospectus may include a concise, “plain English” synopsis and/or representation of certain information contained in the full statutory prospectus, such as a security's investment objectives and strategies, costs, risks and/or other information.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 23, 2021
    Inventors: Russel E. Planitzer, Mark Asdoorian, David Brown, Ying Chen, Leonard Driscoll, Jeffrey B. Levering, Alex Magary
  • Publication number: 20210286492
    Abstract: A computer-implemented method includes generating code for displaying a two-dimensional media programming schedule grid, receiving a command to compress the grid at a first location along a first dimension, and generating code for displaying the grid with visible graphical fold marks defining a fold area near the first location along the first dimension.
    Type: Application
    Filed: June 2, 2021
    Publication date: September 16, 2021
    Inventors: Richard C. Gossweiler, III, Mehran Sahami, Thomas H. Taylor, John Blackburn, David A. Brown, Neha Crosby, Manish G. Patel
  • Publication number: 20210279060
    Abstract: Systems and methods for illumination power, management and control can include lighting fixtures, lighting controllers, databases, and gateways. The lighting controllers can power the lighting fixtures, control the lighting fixtures, and store fixture state data and controller state data. The lighting controllers can be connected to building mains power (e.g., 240 VAC) and provide DC power to the lighting fixtures. The lighting controllers can read state data from and control the fixtures via a digital interface. The Database server can store user profiles, site profiles, fixture property data, and controller property data. The gateway can read and modify the state data stored by the lighting controllers, and can query the database server for the property data. The gateway can also provide a user interface through which users, based on authorization, can read and write the state data (e.g., fixture on/off) and the property data.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 9, 2021
    Inventors: David Brown, Lucas Jackson
  • Publication number: 20210279059
    Abstract: Systems and methods for illumination power, management and control can include lighting fixtures, lighting controllers, databases, and gateways. The lighting controllers can power the lighting fixtures, control the lighting fixtures, and store fixture state data and controller state data. The lighting controllers can be connected to building mains power (e.g., 240 VAC) and provide DC power to the lighting fixtures. The lighting controllers can read state data from and control the fixtures via a digital interface. The Database server can store user profiles, site profiles, fixture property data, and controller property data. The gateway can read and modify the state data stored by the lighting controllers, and can query the database server for the property data. The gateway can also provide a user interface through which users, based on authorization, can read and write the state data (e.g., fixture on/off) and the property data.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 9, 2021
    Inventors: David Brown, Lucas Jackson
  • Publication number: 20210268564
    Abstract: A leveling machine is automatically adjustable. A plurality of blank conditions are presented at a user interface. A selection of a first blank condition is received at the user interface. An arrangement of the rollers is determined based on the selection of the first blank condition. The rollers are moved based on the determined arrangement.
    Type: Application
    Filed: February 28, 2020
    Publication date: September 2, 2021
    Inventors: Byron Wade MACDONALD, Matthew David BROWN, David NAUGHTON, Chanakya CHAUHAN, Paul Adams THOMPSON
  • Publication number: 20210244700
    Abstract: The present invention relates to methods of reducing ischemic damage to a surgical incision in a tissue of subject, enhancing tissue viability and vascularity following an ischemic event, and preconditioning tissue to resist an ischemic insult, which comprises contacting the relevant tissue topically with an effective dose of a HIF-1 potentiating agent, thereby reducing ischemic damage to a surgical incision, enhancing tissue viability and vascularity following an ischemic event, and preconditioning tissue to resist an ischemic insult.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 12, 2021
    Inventors: David BROWN, Scott HOLLENBECK
  • Patent number: 11081618
    Abstract: Methods for fabricating semiconductor devices incorporating an activated p-(Al,In)GaN layer include exposing a p-(Al,In)GaN layer to a gaseous composition of H2 and/or NH3 under conditions that would otherwise passivate the p-(Al,In)GaN layer. The methods do not include subjecting the p-(Al,In)GaN layer to a separate activation step in a low hydrogen or hydrogen-free environment. The methods can be used to fabricate buried activated n/p-(Al,In)GaN tunnel junctions, which can be incorporated into electronic devices.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: August 3, 2021
    Assignee: Gallium Enterprises Pty Ltd
    Inventors: Ian Mann, Satyanarayan Barik, Joshua David Brown, Danyu Liu
  • Publication number: 20210231651
    Abstract: Embodiments provided herein relate to methods, compositions and systems for rapid determination of the bioavailability of a therapeutic biologic in a sample from a subject.
    Type: Application
    Filed: April 29, 2019
    Publication date: July 29, 2021
    Applicant: Genalyte, Inc.
    Inventors: David BROWN, Martin Anthony GLEESON
  • Publication number: 20210219798
    Abstract: Vacuum cleaning devices include foldable wands to provide a storage configuration and/or facilitate use. A vacuum cleaning device includes a wand having a first end coupled to a vacuum unit and a second end coupled to a vacuum head or surface cleaning head. The wand defines an air passage allowing air to pass from the surface cleaning head to the vacuum unit and includes a flexible air passage along at least a portion of the wand. The wand also includes a plurality of segments pivotably connected together such that the wand is foldable about 180° in a forward direction until the vacuum unit is positioned proximate a top of the surface cleaning head, thereby providing a storage configuration.
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Inventors: Daniel John INNES, Jason THORNE, Andre David BROWN, Gary PALLADINO, Catriona C.A. SUTTER, Lee COTTRELL, Scott NIEDZWECKI, Junghwan CHEI
  • Publication number: 20210226663
    Abstract: A Global Navigation Satellite System (GNSS) receiver demodulates code shift keying (CSK) data utilizing a binary search. The GNSS receiver receives a signal including a pseudorandom noise (PRN) code modulated by code shift keying (CSK) to represent a symbol (i.e., CSK modulated symbol). The GNSS receiver maintains a plurality of receiver codes each representing a different shift in chips to the PRN code. The GNSS receiver performs a linear combination of portions of the receiver codes. In an embodiment, the GNSS receiver compares correlation power level value for respective portions of the receiver codes to demodulate the CSK data. In a further embodiment, the GNSS receiver compares the correlation power level values for portions of receiver codes with power detection threshold values to demodulate the CSK data. In a further embodiment, the GNSS receiver utilizes signs of the correlation power level values to demodulate the CSK data.
    Type: Application
    Filed: April 7, 2021
    Publication date: July 22, 2021
    Inventors: Patrick C. Fenton, David Brown