Patents by Inventor Keith Walters

Keith 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).

  • Patent number: 11808063
    Abstract: A method and device for unlatching a door from a frame, using a keyless door latch system, is provided. In one embodiment, a secondary unlocking component receives a signal and derives power from the signal to provide a power source for the keyless door latch system. A microcontroller generates a control signal and an actuator, in response to receiving the control signal, actuates the secondary unlocking component, which allows an energy source, from an exterior of the door, to be transferred to the keyless door latch system for the unlatching of the door.
    Type: Grant
    Filed: March 3, 2023
    Date of Patent: November 7, 2023
    Assignees: STMicroelectronics S.r.l., STMicroelectronics, Inc.
    Inventors: Williamson Sy, Emiliano Mario Piccinelli, Keith Walters
  • Publication number: 20230203854
    Abstract: A method and device for unlatching a door from a frame, using a keyless door latch system, is provided. In one embodiment, a secondary unlocking component receives a signal and derives power from the signal to provide a power source for the keyless door latch system. A microcontroller generates a control signal and an actuator, in response to receiving the control signal, actuates the secondary unlocking component, which allows an energy source, from an exterior of the door, to be transferred to the keyless door latch system for the unlatching of the door.
    Type: Application
    Filed: March 3, 2023
    Publication date: June 29, 2023
    Inventors: Williamson Sy, Emiliano Mario Piccinelli, Keith Walters
  • Patent number: 11613918
    Abstract: A method and device for unlatching a door from a frame, using a keyless door latch system, is provided. In one embodiment, a secondary unlocking component receives a signal and derives power from the signal to provide a power source for the keyless door latch system. A microcontroller generates a control signal and an actuator, in response to receiving the control signal, actuates the secondary unlocking component, which allows an energy source, from an exterior of the door, to be transferred to the keyless door latch system for the unlatching of the door.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: March 28, 2023
    Assignees: STMicroelectronics S.r.l., STMicroelectronics, Inc.
    Inventors: Williamson Sy, Emiliano Mario Piccinelli, Keith Walters
  • Publication number: 20200318401
    Abstract: A method and device for unlatching a door from a frame, using a keyless door latch system, is provided. In one embodiment, a secondary unlocking component receives a signal and derives power from the signal to provide a power source for the keyless door latch system. A microcontroller generates a control signal and an actuator, in response to receiving the control signal, actuates the secondary unlocking component, which allows an energy source, from an exterior of the door, to be transferred to the keyless door latch system for the unlatching of the door.
    Type: Application
    Filed: April 4, 2019
    Publication date: October 8, 2020
    Inventors: Williamson Sy, Emiliano Mario Piccinelli, Keith Walters
  • Publication number: 20100282887
    Abstract: There is described a rotary knife for use in a cutting apparatus. The rotary knife comprises a central hub, first and second sides of the knife, a plurality of arms, and a plurality of blades. The central hub defines an axis of rotation of the knife. The first and second sides of the knife are spaced apart in the axial direction. The plurality of arms extend outwardly from the hub. The plurality of blades are carried by the arms such that a number of blades disposed on the second side of the knife is greater than a number of blades disposed on the first side of the knife. There is also described a cutting apparatus comprising a rotary knife as described above.
    Type: Application
    Filed: April 16, 2010
    Publication date: November 11, 2010
    Applicant: COMBICUT LIMITED
    Inventor: Keith Walters
  • Patent number: 7461804
    Abstract: There is described a rotary knife for use in a cutting apparatus, comprising a central hub adapted to be mounted with respect to a rotational driveshaft to define an axis of rotation; and a plurality of blades extending outwards from the hub; each blade having respective channels extending across a surface of the blade in a direction substantially parallel to the axis of rotation. There is also described a cutting apparatus having a rotary knife comprising a central hub adapted to be mounted with respect to a rotational driveshaft to define an axis of rotation; and a plurality of blades extending outwards from the hub; each blade having respective channels extending across a surface of the blade in a direction substantially parallel to the axis of rotation.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: December 9, 2008
    Assignee: JO-AT Limited
    Inventor: Keith Walters
  • Publication number: 20070296368
    Abstract: The present invention relates to an apparatus and method for generating digital electrical signals which are representative of the angular position and rotational velocity of a rotatable shaft or similar movable mechanical component in a servomechanism. In particular, the present invention utilizes oversampling techniques to create an accurate, flexible and responsive method for determining shaft position on a high speed motor. The present invention also includes methods for overcoming deadtime losses and velocity lag.
    Type: Application
    Filed: February 5, 2007
    Publication date: December 27, 2007
    Inventors: Lane Woodland, Stephen Stocker, David Badzinski, Jeffrey Shoemaker, Keith Walters
  • Publication number: 20070273359
    Abstract: A modular current sensing system for a servo control system that includes a magnetic core with an open center portion and a connection plate that includes at least three wire connectors, wherein the wire connectors are capable of connecting at least two wires electrically in series. The system also includes a plurality of wires, including a first wire with a first end and a second end, wherein the first end of the first wire is electrically connected to a first power source, and the second end of the first wire is connected to the connection plate at the first wire connector and wherein the first wire passes through the open portion defined by the magnetic core at least once. A first motor current flowing through the first wire induces a core current to flow in the magnetic core, causing the magnetic core to emit a magnetic field. A Hall effect sensor detects the magnetic field, produces an output current, and delivers the output current to a control device within a servo control system.
    Type: Application
    Filed: February 5, 2007
    Publication date: November 29, 2007
    Inventors: Timothy Grupa, Lane Woodland, Stephen Stocker, Martin Sukup, Bret Bartness, David Badzinski, Jeffrey Shoemaker, Keith Walters
  • Publication number: 20070001040
    Abstract: There is described a rotary knife for use in a cutting apparatus, comprising a central hub adapted to be mounted with respect to a rotational driveshaft to define an axis of rotation; and a plurality of blades extending outwards from the hub; each blade having respective channels extending across a surface of the blade in a direction substantially parallel to the axis of rotation. There is also described a cutting apparatus having a rotary knife comprising a central hub adapted to be mounted with respect to a rotational driveshaft to define an axis of rotation; and a plurality of blades extending outwards from the hub; each blade having respective channels extending across a surface of the blade in a direction substantially parallel to the axis of rotation.
    Type: Application
    Filed: June 27, 2006
    Publication date: January 4, 2007
    Inventor: Keith Walters
  • Publication number: 20050115248
    Abstract: An offshore liquefied natural gas structure may receive, store, and process liquefied natural gas from carriers. A structure may be a gravity base structure. A structure may include a system of ballast storage areas, transfer equipment to offload liquefied natural gas from a carrier, docking equipment to allow direct mooring with carriers, platforms to elevate equipment, water intake systems to provide water to the structure, wave deflectors, and/or projections extending from a bottom of the structure. A portion of the structure may be composed of lightweight concrete. Pipelines may be coupled to the structure to export processed natural gas onshore. Living quarters, flare towers, and export line metering equipment may be included on the structure.
    Type: Application
    Filed: October 28, 2004
    Publication date: June 2, 2005
    Inventors: Gregory Koehler, Denby Morrison, Keith Walters, Harke Meek, Paul Wilhelmus Van Weert, Steven Bowring, Robert Figgers, Kelly Bowen, WanJun Kim, David Thomson
  • Patent number: D549539
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: August 28, 2007
    Inventor: Keith Walters