Patents by Inventor Stephen HALLETT

Stephen HALLETT 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: 11840613
    Abstract: A Z-pin for increasing a delamination resistance of continuous fibre-reinforced polymer composites, formed of a composite material including a polymer matrix, and a plurality of fibres embedded in the polymer matrix and aligned along the length direction of Z-pin, the fibres having an elongation at break of at least 2% and a tensile strength of at least 5 GPa, the polymer matrix having an elongation at break equal to or greater than the elongation at break of the fibres, and a tensile strength of at least 120 MPa.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: December 12, 2023
    Assignee: Rolls-Royce PLC
    Inventors: Eduardo Santana De Vega, Giuliano Allegri, Stephen Hallett, Ian Hamerton, Bing Zhang
  • Publication number: 20230192979
    Abstract: A Z-pin for increasing a delamination resistance of continuous fibre-reinforced polymer composites, formed of a composite material including a polymer matrix, and a plurality of fibres embedded in the polymer matrix and aligned along the length direction of Z-pin, the fibres having an elongation at break of at least 2% and a tensile strength of at least 5 GPa, the polymer matrix having an elongation at break equal to or greater than the elongation at break of the fibres, and a tensile strength of at least 120 MPa.
    Type: Application
    Filed: November 28, 2022
    Publication date: June 22, 2023
    Applicant: ROLLS-ROYCE plc
    Inventors: Eduardo SANTANA DE VEGA, Giuliano ALLEGRI, Stephen HALLETT, Ian HAMERTON, Bing ZHANG
  • Patent number: 11214014
    Abstract: The present disclosure concerns apparatus and methods for reinforcing composite materials by insertion of reinforcement pins. Example embodiments include an apparatus for reinforcing a composite preform, comprising: a carriage for introducing reinforcement pins into the composite preform, the carriage comprising a drill module, a pin feeder module and a tamper module, the assembly being translatable relative to the composite preform, wherein the drill module and pin feeder module are exchangeable between a common actuation position on the carriage.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: January 4, 2022
    Assignee: Rolls-Royce PLC
    Inventors: Oliver J. Logan, Yusuf S. Mahadik, Stephen Hallett
  • Publication number: 20200171757
    Abstract: The present disclosure concerns apparatus and methods for reinforcing composite materials by insertion of reinforcement pins. Example embodiments include an apparatus for reinforcing a composite preform, comprising: a carriage for introducing reinforcement pins into the composite preform, the carriage comprising a drill module, a pin feeder module and a tamper module, the assembly being translatable relative to the composite preform, wherein the drill module and pin feeder module are exchangeable between a common actuation position on the carriage.
    Type: Application
    Filed: November 19, 2019
    Publication date: June 4, 2020
    Applicant: ROLLS-ROYCE plc
    Inventors: Oliver J. LOGAN, Yusuf S. MAHADIK, Stephen HALLETT
  • Patent number: 10385869
    Abstract: A composite component comprising a plurality of plies. A first set of pins extend in a direction transverse to the plies and a second set of pins extend in a direction transverse to the plies. The pins of the first set are made of a different material to the pins of the second set.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: August 20, 2019
    Assignee: ROLLS-ROYCE plc
    Inventors: Beene M'Membe, Mehdi Yasaee, Stephen Hallett, Ivana Partridge
  • Publication number: 20180178489
    Abstract: A composite component comprises a plurality of plies; and a plurality of pins extending through the plies in a direction transverse to the plies. Each of the pins comprises a shape memory alloy.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 28, 2018
    Applicant: ROLLS-ROYCE plc
    Inventors: Beene M'Membe, Alexander Lycett, Mehdi Yasaee, Stephen Hallett, Ivana Partridge
  • Publication number: 20170261002
    Abstract: A composite component comprising a plurality of plies. A first set of pins extend in a direction transverse to the plies and a second set of pins extend in a direction transverse to the plies. The pins of the first set are made of a different material to the pins of the second set.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 14, 2017
    Applicant: ROLLS-ROYCE plc
    Inventors: Beene M'MEMBE, Mehdi YASAEE, Stephen HALLETT, Ivana PARTRIDGE