Patents by Inventor David Andrew Bryant

David Andrew Bryant 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: 20210276641
    Abstract: A Mobile Climbing Robot (MCR) with wheel or endless-track type propulsion using magnetic attraction for generating adhering forces is adapted to climbing non-planar surfaces such as intersecting walls, pipes or other structural members. A tether is connected to the MCR through a tether linkage that causes the tether to bend with a radius that keeps it from protruding outside of the MCR wheels. The purpose of this is to increase the mobility when passing over variations of the climbing surface such as edges or corners. The purpose is to further protect the tether from wear caused by rubbing with the climbing surface.
    Type: Application
    Filed: March 3, 2021
    Publication date: September 9, 2021
    Inventors: James Walter Beard, III, David Andrew Bryant, Stephen Lee Canfield
  • Patent number: 10518830
    Abstract: A climbing vehicle with wheel or endless-track type propulsion using suction for generating adhering forces is adapted to climbing non-planar surfaces such as intersecting walls, pipes or other structural members. The suction chamber is relatively fixed to the vehicle chassis and moves with the vehicle chassis. A seal is created around the suction chamber through an adaptive sealing mechanism. The adaptive sealing mechanism consists of a series of links that adapt to the climbing surface geometry and forms a seal at the climbing surface. The links in the adaptive sealing mechanism span a portion of the suction chamber along the longitudinal sides of the vehicle and are elastically sprung to maintain contact with the surface. The adaptive sealing mechanism links also span the lateral sides of the vehicle to fully enclose the suction chamber.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: December 31, 2019
    Inventors: James Walter Beard, III, Stephen Lee Canfield, David Andrew Bryant, Steve Glovsky
  • Patent number: 10106215
    Abstract: This patent discloses a climbing vehicle capable of high payload to weight ratio and capable of climbing surfaces with geometric variations and traveling along a single dimension. More specifically, this invention applies to a vehicle well adapted to climbing non-planar surfaces such as pipes or other structural members while traveling along a single dimension, for example traveling parallel to the axis of the pipe. The climbing vehicle makes contact with the climbing surface through drive wheels and a trailing arm. The adhering members are aligned with the primary axis and are rigidly attached or contained in a suspension that is able to conform to a large range of surface irregularities while providing push and pulling forces between the adhering members and the climbing vehicle chassis to uniformly distribute the climbing loads on the adhering members.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: October 23, 2018
    Inventors: James Walter Beard, III, Stephen Lee Canfield, David Andrew Bryant
  • Publication number: 20180154960
    Abstract: A climbing vehicle with wheel or endless-track type propulsion using suction for generating adhering forces is adapted to climbing non-planar surfaces such as intersecting walls, pipes or other structural members. The suction chamber is relatively fixed to the vehicle chassis and moves with the vehicle chassis. A seal is created around the suction chamber through an adaptive sealing mechanism. The adaptive sealing mechanism consists of a series of links that adapt to the climbing surface geometry and forms a seal at the climbing surface. The links in the adaptive sealing mechanism span a portion of the suction chamber along the longitudinal sides of the vehicle and are elastically sprung to maintain contact with the surface. The adaptive sealing mechanism links also span the lateral sides of the vehicle to fully enclose the suction chamber.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 7, 2018
    Inventors: James Walter Beard, III, Stephen Lee Canfield, David Andrew Bryant, Steve Glovsky
  • Patent number: 9428231
    Abstract: A climbing vehicle capable of high payload to weight ratio and capable of climbing surfaces with geometric variations is enabled through a suspension mechanism consisting of a resilient runner chain. The resilient runners contain adhering members such as magnets that create forces directed toward a ferrous climbing surface. The resilient runner has flexibility and internal stiffness or additional springs that transfer these forces to the climbing vehicle chassis and payload to provide equilibrium during the climbing process. It is able to conform to a large range of surface irregularities while providing push and pulling forces between the adhering members and the climbing vehicle chassis to uniformly distribute the climbing loads on the adhering members. The result is a climbing machine that can accommodate large surface irregularities while maximizing the climbing payload with a minimum number and size of adhering members.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: August 30, 2016
    Inventors: James Walter Beard, Stephen Lee Canfield, David Andrew Bryant
  • Publication number: 20150336625
    Abstract: This patent discloses a climbing vehicle capable of high payload to weight ratio and capable of climbing surfaces with geometric variations and traveling along a single dimension. More specifically, this invention applies to a vehicle well adapted to climbing non-planar surfaces such as pipes or other structural members while traveling along a single dimension, for example traveling parallel to the axis of the pipe. The climbing vehicle makes contact with the climbing surface through drive wheels and a trialing arm. The adhering members are aligned with the primary axis and are rigidly attached or contained in a suspension that is able to conform to a large range of surface irregularities while providing push and pulling forces between the adhering members and the climbing vehicle chassis to uniformly distribute the climbing loads on the adhering members.
    Type: Application
    Filed: May 22, 2015
    Publication date: November 26, 2015
    Inventors: James Walter Beard, III, Stephen Lee Canfield, David Andrew Bryant
  • Publication number: 20140339004
    Abstract: This patent discloses a climbing vehicle capable of high payload to weight ratio and capable of climbing surfaces with geometric variations. The climbing vehicle makes contact with the climbing surface through a suspension that is able to conform to a large range of surface irregularities while providing push and pulling forces between the adhering members and the climbing vehicle chassis to uniformly distribute the climbing loads on the adhering members. The result is a climbing machine that can accommodate large surface irregularities while maximizing the climbing payload with a minimum number and size of adhering members.
    Type: Application
    Filed: February 12, 2014
    Publication date: November 20, 2014
    Inventors: James Walter Beard, Stephen Lee Canfield, David Andrew Bryant