Patents by Inventor David A. Walters

David A. Walters 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).

  • Publication number: 20190133399
    Abstract: A mobile robot includes a body configured to traverse a surface and to receive debris from the surface, and a debris bin within the body. The debris bin includes a chamber to hold the debris received by the mobile robot, an exhaust port through which the debris exits the debris bin; and a door unit over the exhaust port. The door unit includes a flap configured to move, in response to air pressure at the exhaust port, between a closed position to cover the exhaust port and an open position to open a path between the chamber and the exhaust port. The door unit, including the flap in the open position and in the closed position, is within an exterior surface of the mobile robot.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 9, 2019
    Inventors: Russell Walter Morin, Harold Boeschenstein, David Orrin Swett, Jude Royston Jonas
  • Patent number: 10282746
    Abstract: A campaign management system may include a data collection subsystem to collect and store data from different sources that may be related to different marketing channels. The system may also include a map generation subsystem to generate a marketing campaign map that includes a visual representation of performance of the marketing channels. A performance metric adjustment factor may be determined for one or more performance metrics to determine an actual value performance metric for each metric. The actual value performance metrics may be aggregated and compared to benchmarks to generate a visual representation of the entire campaign performance across the marketing channels.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 7, 2019
    Assignee: ACCENTURE GLOBAL SERVICES LIMITED
    Inventors: Stephen Denis Kirkby, David Walter Skinner, Robert Lawrence, Warren Hutchinson
  • Patent number: 10268098
    Abstract: Onboard EC window controllers are described. The controllers are configured in close proximity to the EC window, for example, within the IGU. The controller may be part of a window assembly, which includes an IGU having one or more EC panes, and thus does not have to be matched with the EC window, and installed, in the field. The window controllers described herein have a number of advantages because they are matched to the IGU containing one or more EC devices and their proximity to the EC panes of the window overcomes a number of problems associated with conventional controller configurations.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: April 23, 2019
    Assignee: View, Inc.
    Inventors: Dhairya Shrivastava, Anshu A. Pradhan, Stephen C. Brown, David Walter Groechel, Robert T. Rozbicki
  • Publication number: 20190107232
    Abstract: A method is provided for forming a gasket for sealing opposing flange surfaces of a pipe having corrosive fluid flowing therethrough. The method comprises defining a gasket profile incorporating a serrated profile core having a flange extending radially inward therefrom. A deformable pillow extends radially inward from the serrated profile core, to define a gasket intermediate portion about the flange, and a gasket inner portion radially inward from the flange. The deformable pillow material and thickness are selected such that upon compression to a thickness no less than the core thickness, the gasket inner portion exhibits a stress level sufficient to preclude corrosive liquid flowing through the pipe from passing radially outward beyond the gasket inner portion, and the gasket intermediate portion exhibits a stress level sufficient to preclude gas and liquid flowing through the pipe from passing radially outward beyond the gasket intermediate portion.
    Type: Application
    Filed: December 7, 2018
    Publication date: April 11, 2019
    Applicant: ERIKS N.V.
    Inventors: Alan Stubblefield, David Walter Reeves
  • Patent number: 10240165
    Abstract: The invention provides methods and compositions for identifying transgenic seed that contain a transgene of interest, but lack a marker gene. Use of an identification sequence that results in a detectable phenotype increases the efficiency of screening for seed and plants in which transgene sequences not linked to a gene of interest have segregated from the sequence encoding a gene of interest.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: March 26, 2019
    Assignee: MONSANTO TECHNOLOGY LLC
    Inventors: Xudong Ye, Larry A. Gilbertson, Shihshieh Huang, Susan J. Johnson, Michael W. Petersen, David Walters, Paul S. Chomet
  • Patent number: 10238072
    Abstract: A novel maize variety designated X05M941 and seed, plants and plant parts thereof are produced by crossing inbred maize varieties. Methods for producing a maize plant by crossing hybrid maize variety X05M941 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X05M941 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X05M941, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X05M941 are provided. Methods for producing maize varieties derived from maize variety X05M941 and methods of using maize variety X05M941 are disclosed.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: March 26, 2019
    Assignee: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Mario Rosario Carlone, Jr., Michael Phillip Jines, David Walter Whitaker
  • Publication number: 20190062635
    Abstract: Self-aligned liquid crystal materials and structures are disclosed. The structures can exhibit piezoelectric and flexoelectric properties.
    Type: Application
    Filed: August 25, 2017
    Publication date: February 28, 2019
    Inventors: CYNTHIA KUTCHKO, ZOUBEIDA OUNAIES, HASSENE BEN ATITALLAH, NICHOLAS WYCKOFF, ANIL KUMAR, ROMAIN STALDER, DAVID WALTERS
  • Patent number: 10209755
    Abstract: A system comprises a first domain 4 and second domain 6 which communicate via an interface 8. The first domain 4 transmits power state commands to the second domain 6 for controlling transitions of power states at the second domain 6. The power state commands include at least a power up command 50 for triggering a transition to a power up state and a power no-operation command 52 in response to which the second domain remains in the current one of the power states. The no-operation command 52 enables the second domain 6 to be left in either the power up state or a different power state even if the first domain 4 is powered down.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: February 19, 2019
    Assignee: ARM Limited
    Inventors: David Walter Flynn, Vasan Venkataraman
  • Publication number: 20190037175
    Abstract: A secure teleconference with a patient treatment room may be initiated by receiving, at a central facility, a request for a conference from a clinician application, and then identifying a virtual meeting room and sending an identifier for a conference to the treatment room. The conference is then be established by receiving a call at the central facility from the treatment room, where the call identifies the conference. The central facility then joins the treatment room and the clinician application to the virtual meeting room. Teleconferences may thus be established without reference to sensitive patient information. For security, no incoming conferencing calls may be made to the treatment room directly, and virtual meeting rooms may be eliminated after single use. A call may further be initiated by receiving a request from the treatment room, e.g., which is processed by the central facility to alert one or more clinicians.
    Type: Application
    Filed: July 26, 2018
    Publication date: January 31, 2019
    Inventors: John Mitchell Vitale, David Walter Galas, Jennifer R. Schell, Philip Brock Purpura, Luke Brown
  • Patent number: 10175549
    Abstract: This disclosure provides connectors for smart windows. A smart window may incorporate an optically switchable pane. In one aspect, a window unit includes an insulated glass unit including an optically switchable pane. A wire assembly may be attached to the edge of the insulated glass unit and may include wires in electrical communication with electrodes of the optically switchable pane. A floating connector may be attached to a distal end of the wire assembly. The floating connector may include a flange and a nose, with two holes in the flange for affixing the floating connector to a first frame. The nose may include a terminal face that present two exposed contacts of opposite polarity. Pre-wired spacers improve fabrication efficiency and seal integrity of insulated glass units. Electrical connection systems include those embedded in the secondary seal of the insulated glass unit.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: January 8, 2019
    Assignee: View, Inc.
    Inventors: Stephen C. Brown, Dhairya Shrivastava, David Walter Groechel, Anshu A. Pradhan, Gordon Jack, Disha Mehtani, Robert T. Rozbicki
  • Patent number: 10159209
    Abstract: A novel maize variety designated PH41BB and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH41BB with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH41BB through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety PH41BB or a locus conversion of PH41BB with another maize variety.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: December 25, 2018
    Assignee: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventor: David Walter Whitaker
  • Patent number: 10161549
    Abstract: A method is provided for forming a gasket for sealing opposing flange surfaces of a pipe having corrosive fluid flowing therethrough. The method comprises defining a gasket profile incorporating a serrated profile core having a flange extending radially inward therefrom. A deformable pillow extends radially inward from the serrated profile core, to define a gasket intermediate portion about the flange, and a gasket inner portion radially inward from the flange. The deformable pillow material and thickness are selected such that upon compression to a thickness no less than the core thickness, the gasket inner portion exhibits a stress level sufficient to preclude corrosive liquid flowing through the pipe from passing radially outward beyond the gasket inner portion, and the gasket intermediate portion exhibits a stress level sufficient to preclude gas and liquid flowing through the pipe from passing radially outward beyond the gasket intermediate portion.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: December 25, 2018
    Assignee: Eriks N.V
    Inventors: Alan Stubblefield, Jr., David Walter Reeves
  • Publication number: 20180345725
    Abstract: The present disclosure relates generally to devices and methods which use the mechanical advantage of a lever and fulcrum along with the use of force from a user's body, foot, and leg muscles, to more ergonomically and safely install wheel assemblies on vehicles while keeping the user's back at a more ergonomic angle and allowing for both of the installer's hands to remain free for stabilizing the wheel assembly during installation. The lifting device provides a foot pedal, a lifting pad and a pivot point to position a wheel assembly on a hub and/or wheel studs.
    Type: Application
    Filed: June 5, 2017
    Publication date: December 6, 2018
    Applicant: Tealcraft, LLC
    Inventor: David Walter Teal
  • Publication number: 20180326661
    Abstract: A three dimensional (3D) printing system includes an ink cartridge providing ink to a printhead and a controller. The ink cartridge also includes a flag material and a sensor component. The ink has a low dielectric constant and defines an upper surface having a vertical position defining an ink level. The flag material has a high dielectric constant and is disposed upon the upper surface of the ink. The sensor component includes a vertical arrangement of electrodes proximate to the ink. The controller is coupled to the sensor electrodes and is configured to: (1) scan sensor electrodes to determine a capacitance between adjacent pairs of electrodes, (2) identify at least one pair of electrodes having a peak capacitance value relative to capacitance values of remaining pairs of electrodes, and (3) estimate the ink level based upon the identification.
    Type: Application
    Filed: April 20, 2018
    Publication date: November 15, 2018
    Inventor: David Walter Johnson
  • Patent number: 10093171
    Abstract: A grill assembly for attachment to a vehicle front end including a base grill portion, having a front surface, a back surface, a perimeter portion, and cross-rail portions. The cross-rail portions define a plurality of grill openings therebetween. A plurality of louvers are configured to communicate with the plurality of grill openings. The assembly is in communication with a controller to effectuate generally linearly reciprocal movement of at least one of the base grill portion or the plurality of louvers in a direction generally defined by a direction of travel of the vehicle to vary an amount of air flow through the plurality of grill openings.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 9, 2018
    Assignee: Lacks Enterprises, Inc.
    Inventor: David Walters
  • Patent number: 10094201
    Abstract: There is described a chemical injection system for a natural gas well. An instrument monitors the production of gas from the well and the flow of chemicals injected into the well. The instrument controls the on and off time of a chemical injection pump that is attached to a chemical injection tank. The control is based for certain chemicals such as a surfactant on the gas flow rate in the production piping. The user of the system inserts in the instrument the setpoints associated with the well's flow rate. These setpoints determine for a given flow rate the on time for the chemical injection pump. Other chemicals can also be injected into the well using the system and the injection for those chemicals may be based on other criteria such as temperature, water rate, oil rate or pipeline flow rate.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: October 9, 2018
    Assignee: ABB Schweiz AG
    Inventor: David Walter Barry
  • Publication number: 20180267380
    Abstract: Onboard EC window controllers are described. The controllers are configured in close proximity to the EC window, for example, within the IGU. The controller may be part of a window assembly, which includes an IGU having one or more EC panes, and thus does not have to be matched with the EC window, and installed, in the field. The window controllers described herein have a number of advantages because they are matched to the IGU containing one or more EC devices and their proximity to the EC panes of the window overcomes a number of problems associated with conventional controller configurations.
    Type: Application
    Filed: May 11, 2018
    Publication date: September 20, 2018
    Inventors: Dhairya Shrivastava, Anshu A. Pradhan, Stephen C. Brown, David Walter Groechel, Robert T. Rozbicki
  • Patent number: D848503
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 14, 2019
    Assignee: AXIS AB
    Inventors: Daniel Ahman, Morten Bergstrom, Mathias Walter, Mariano Vozzi, Alexander Rosenkvist, David Fagerkvist
  • Patent number: D848504
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 14, 2019
    Assignee: AXIS AB
    Inventors: Daniel Ahman, Morten Bergstrom, Mathias Walter, Mariano Vozzi, Alexander Rosenkvist, David Fagerkvist
  • Patent number: D848505
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: May 14, 2019
    Assignee: AXIS AB
    Inventors: David Bull, Daniel Ahman, Morten Bergstrom, Jan Ryzak, Mathias Walter, John Akesson