Patents by Inventor Peter Granville Holdsworth

Peter Granville Holdsworth 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).

  • Apparatus and process for producing pultruded FRP rebar
    Patent number: 11760039
    Abstract: Apparatus for producing bent multi-sided pultruded fibre reinforced plastic reinforcement bar for concrete (commonly known as FRP rebar) comprises multiple resin wetting stages to simultaneously resin impregnate multiple bundles of fibreglass rovings continuously drawn through the resin wetting stages, multiple spiral winding stages arranged to spiral wind warps around the multiple wet rovings, and multiple rotating multi-sided former frames for continuously winding thereon the multiple wet rovings and holding the multiple rovings while curing. A related method is also claimed.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: September 19, 2023
    Assignee: Owens Corning Reinforcement Solutions, LLC
    Inventors: Peter Granville Holdsworth, David Gordon Picken
  • Apparatus And Process For Producing Pultruded FRP Rebar
    Publication number: 20220297393
    Abstract: Apparatus for producing bent multi-sided pultruded fibre reinforced plastic reinforcement bar for concrete (commonly known as FRP rebar) comprises multiple resin wetting stages to simultaneously resin impregnate multiple bundles of fibreglass rovings continuously drawn through the resin wetting stages, multiple spiral winding stages arranged to spiral wind warps around the multiple wet rovings, and multiple rotating multi-sided former frames for continuously winding thereon the multiple wet rovings and holding the multiple rovings while curing. A related method is also claimed.
    Type: Application
    Filed: August 13, 2020
    Publication date: September 22, 2022
    Applicant: Owens Corning Reinforcement Solutions, LLC
    Inventors: Peter Granville Holdsworth, David Gordon Picken
  • Method of assembling a floating structure
    Patent number: 10337549
    Abstract: In one aspect the invention provides a nut and tie rod assembly which includes a composite material tie rod defining a main shaft with an exterior surface. The tie rod is formed from reinforcing fibers encapsulated within a matrix material, and at least a portion of the exterior surface of the shaft defines an engagement structure. The assembly also includes at least one nut which includes an internal cavity with an interior surface defining an engagement structure which is complimentary to the engagement structure defined on the exterior surface of the shaft of the tie rod.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: July 2, 2019
    Assignees: Pultron Composites Limited, Bellingham Marine Industries
    Inventors: Martijn Bakker, Peter Granville Holdsworth, Peter Louis Renshaw
  • Nut and Tie Rod Assembly
    Publication number: 20160010724
    Abstract: In one aspect the invention provides a nut and tie rod assembly which includes a composite material tie rod defining a main shaft with an exterior surface. The tie rod is formed from reinforcing fibres encapsulated within a matrix material, and at least a portion of the exterior surface of the shaft defines an engagement structure. The assembly also includes at least one nut which includes an internal cavity with an interior surface defining an engagement structure which is complimentary to the engagement structure defined on the exterior surface of the shaft of the tie rod.
    Type: Application
    Filed: July 10, 2015
    Publication date: January 14, 2016
    Applicants: Bellingham Marine Industries Inc., Pultron Composites Limited
    Inventors: Martijn Bakker, Peter Granville Holdsworth, Peter Louis Renshaw