Patents by Inventor Brett Nelson

Brett Nelson 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: 20180071742
    Abstract: Jaw crusher systems, methods and apparatus are provided. In some embodiments, a tensioning system is provided for resiliently maintaining a force on a toggle plate during operation of a jaw crusher. In some embodiments, one or more jaw die supports are provided for supporting at least one of a movable jaw die and a fixed jaw die.
    Type: Application
    Filed: September 13, 2017
    Publication date: March 15, 2018
    Inventors: Lafe Grimm, Brett Nelson, Michael Schultz
  • Publication number: 20170322316
    Abstract: A system and method for recording in real-time the duration, position, and energy of ion beams as delivered by a proton or heavy ion cancer treatment system for the purpose of calibrating the radiological system and verifying the treatment plans for various lesions. The energy of the ion beam is calculated from the beam ion depth penetration through a phantom as recorded on a two-dimensional scintillator surface which is viewed by a sensitive visible-light camera mounted in a darkened enclosure. The energy of the beam is degraded by a novel multi-step dual-slope chevron wedge phantom which creates, at a minimum, two bright spots in the camera's field of view. The distance between the centers of these two spots along with the dimensions and density of the multi-step dual-slope chevron wedge are used to calculate the Bragg Peak penetration depth of the ion beam.
    Type: Application
    Filed: August 13, 2014
    Publication date: November 9, 2017
    Inventor: Brett Nelson
  • Publication number: 20170043962
    Abstract: Systems and methods for automatically leveling a base frame of a bulk material transport conveyor include raising or lowering either or both radial travel wheels mounted on generally opposing sides of the base frame. Actuators normally used to raise or lower the radial travel wheel actuators may be controlled in response to inclination and/or limit sensors mounted on the conveyor.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 16, 2017
    Inventors: Brett Nelson, Scott Oberg, Steven Haugen
  • Publication number: 20160049216
    Abstract: A system and method for recording in real-time the duration, position, and energy of ion beams as delivered by a proton or heavy ion cancer treatment system for the purpose of calibrating the radiological system and verifying the treatment plans for various lesions. The energy of the ion beam is calculated from the beam ion depth penetration through a phantom as recorded on a two-dimensional scintillator surface which is viewed by a sensitive visible-light camera mounted in a darkened enclosure. The energy of the beam is degraded by a novel multi-step dual-slope chevron wedge phantom which creates, at a minimum, two bright spots in the camera's field of view. The distance between the centers of these two spots along with the dimensions and density of the multi-step dual-slope chevron wedge are used to calculate the Bragg Peak penetration depth of the ion beam.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 18, 2016
    Inventor: Brett Nelson
  • Publication number: 20050180160
    Abstract: An illuminator for measurement of curved specular surfaces is provided comprising a hemispherical support structure containing single or multiple polygonal groups of directional light sources, whose beams converge at a point underneath the hemisphere containing the area to be inspected. The lights reflect from the curved surfaces vertically through an aperture in the top of the hemisphere to one or more cameras that are part of a machine vision system. In one form of the embodiment, two octagonal groups of LEDs (Light Emitting Diodes) mounted at different elevations on the hemisphere are used. The shapes and patterns of the reflected points of light serve as fiducials for measurement of the positions, radii, surface quality and relative heights of the curved surfaces.
    Type: Application
    Filed: February 16, 2005
    Publication date: August 18, 2005
    Applicant: Brett K. Nelson
    Inventor: Brett Nelson