Patents by Inventor Elizabeth K. Walker

Elizabeth K. Walker 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: 10557603
    Abstract: A lighting system is configured to provide lighting on an interior of a utility platform. The lighting system comprises a rope light and a power source for installing in or near the utility platform. The rope light includes a plurality of light emitters and a casing. The casing surrounds the plurality of light emitters, which are spread along the rope light. The rope light is configured to provide light to an interior surface of the utility platform. The isolated power source provides electrical power to the rope light, and is configured to prevent a discharge of electricity.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: February 11, 2020
    Assignee: Altec Industries, Inc.
    Inventor: Elizabeth K. Walker
  • Publication number: 20180238507
    Abstract: A lighting system is configured to provide lighting on an interior of a utility platform. The lighting system comprises a rope light and a power source for installing in or near the utility platform. The rope light includes a plurality of light emitters and a casing. The casing surrounds the plurality of light emitters, which are spread along the rope light. The rope light is configured to provide light to an interior surface of the utility platform. The isolated power source provides electrical power to the rope light, and is configured to prevent a discharge of electricity.
    Type: Application
    Filed: April 18, 2018
    Publication date: August 23, 2018
    Inventor: Elizabeth K. Walker
  • Patent number: 9976715
    Abstract: A lighting system is configured to provide lighting on an interior of a utility platform. The lighting system comprises a rope light and a power source for installing in or near the utility platform. The rope light includes a plurality of light emitters and a casing. The casing surrounds the plurality of light emitters, which are spread along the rope light. The rope light is configured to provide light to an interior surface of the utility platform. The isolated power source provides electrical power to the rope light, and is configured to prevent a discharge of electricity.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: May 22, 2018
    Assignee: Altec Industries, Inc.
    Inventor: Elizabeth K. Walker
  • Publication number: 20170211765
    Abstract: A lighting system is configured to provide lighting on an interior of a utility platform. The lighting system comprises a rope light and a power source for installing in or near the utility platform. The rope light includes a plurality of light emitters and a casing. The casing surrounds the plurality of light emitters, which are spread along the rope light. The rope light is configured to provide light to an interior surface of the utility platform. The isolated power source provides electrical power to the rope light, and is configured to prevent a discharge of electricity.
    Type: Application
    Filed: January 25, 2016
    Publication date: July 27, 2017
    Inventor: Elizabeth K. Walker
  • Patent number: 9550475
    Abstract: An outrigger foot is configured to be disposed on an outrigger of a utility vehicle for detecting secure emplacement of the outrigger. The outrigger foot comprises a housing, a kingpin assembly, and a pad assembly. The housing is configured to be secured to the outrigger. The kingpin assembly is at least partially disposed within the housing. The kingpin assembly is adapted to be in a compressed position while the outrigger foot is securely in contact with the ground, and to be in an uncompressed position while the outrigger foot is free of secure contact with the ground. A proximity sensor is associated with the housing, such that the proximity sensor can detect a proximity of a portion of the kingpin assembly that is in the compressed position. The pad assembly is secured to the kingpin assembly for contacting the ground at various angles.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: January 24, 2017
    Assignee: Altec Industries, Inc.
    Inventors: Elizabeth K. Walker, Benjamin G. Southern
  • Patent number: 9149670
    Abstract: A machine operator safety system for selectively providing hydraulic power to a boom assembly of an aerial device upon attaching a lanyard. The machine operator safety system comprises a set of upper boom controls within the utility platform, a lanyard anchor housing with a lanyard anchor therein, an actuator for selectively positioning the lanyard anchor housing in either a first position or a second position, and a hydraulic valve. When the lanyard anchor housing is in the first position, which conceals the lanyard anchor, the hydraulic valve blocks the flow of hydraulic power to the set of upper boom controls. When the lanyard anchor housing is in the second position, which exposes the lanyard anchor for attachment of the lanyard, the hydraulic valve directs the flow of hydraulic power to the set of upper boom controls.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: October 6, 2015
    Assignee: Altec Industries, Inc.
    Inventors: Elizabeth K. Walker, Robert J. Crowder, Benjamin J. Southern