Patents by Inventor Duncan Forbes

Duncan Forbes 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: 10975708
    Abstract: A turbine assembly adapted for use in a gas turbine engine is disclosed in this paper. The turbine assembly includes a turbine vane comprising ceramic matrix composite materials configured for use in high temperature environments. The turbine assembly further includes a vane-stage support for holding the turbine vane and other components in place relative to a turbine case.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: April 13, 2021
    Assignee: Rolls-Royce plc
    Inventors: Michael J. Whittle, Anthony G. Razzell, Roderick M. Townes, David J. Shepherd, Duncan Forbes
  • Patent number: 10954802
    Abstract: A turbine assembly adapted for use in a gas turbine engine with a turbine vane comprising ceramic matrix composite materials. The turbine vane is configured to redirect air moving through a primary gas path of the gas turbine engine. The turbine assembly includes a vane-stage support for holding the turbine vane in place relative to a turbine case.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: March 23, 2021
    Inventors: Michael J. Whittle, Anthony G. Razzell, Roderick M. Townes, David J. Shepherd, Duncan Forbes
  • Publication number: 20200362707
    Abstract: A turbine assembly adapted for use in a gas turbine engine is disclosed in this paper. The turbine assembly includes a turbine vane comprising ceramic matrix composite materials configured for use in high temperature environments. The turbine assembly further includes a vane-stage support for holding the turbine vane and other components in place relative to a turbine case.
    Type: Application
    Filed: May 13, 2019
    Publication date: November 19, 2020
    Inventors: Michael J. Whittle, Anthony G. Razzell, Roderick M. Townes, David J. Shepherd, Duncan Forbes
  • Publication number: 20200340365
    Abstract: A turbine assembly adapted for use in a gas turbine engine is disclosed in this paper. The turbine assembly includes a turbine vane comprising ceramic matrix composite materials configured for use in high temperature environments. The turbine assembly further includes a vane-stage support for holding the turbine vane and other components in place relative to a turbine case.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 29, 2020
    Inventors: Michael J. Whittle, Anthony G. Razzell, Roderick M. Townes, David J. Shepherd, Duncan Forbes
  • Publication number: 20200340370
    Abstract: A turbine assembly adapted for use in a gas turbine engine with a turbine vane comprising ceramic matrix composite materials. The turbine vane is configured to redirect air moving through a primary gas path of the gas turbine engine. The turbine assembly includes a vane-stage support for holding the turbine vane in place relative to a turbine case.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 29, 2020
    Inventors: Michael J. Whittle, Anthony G. Razzell, Roderick M. Townes, David J. Shepherd, Duncan Forbes
  • Publication number: 20200340363
    Abstract: A turbine assembly adapted for use in a gas turbine engine with a turbine vane comprising ceramic matrix composite materials. The turbine vane is configured to redirect air moving through a primary gas path of the gas turbine engine. The turbine assembly includes a vane-stage support for holding the turbine vane in place relative to a turbine case.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 29, 2020
    Inventors: Michael J. Whittle, Anthony G. Razzell, Roderick M. Townes, David J. Shepherd, Duncan Forbes
  • Publication number: 20200340367
    Abstract: A turbine assembly adapted for use in a gas turbine engine is disclosed in this paper. The turbine assembly includes a turbine vane comprising ceramic matrix composite materials configured for use in high temperature environments. The turbine assembly further includes a vane-stage support for holding the turbine vane and other components in place relative to a turbine case.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 29, 2020
    Inventors: Michael J. Whittle, Anthony G. Razzell, Roderick M. Townes, David J. Shepherd, Duncan Forbes
  • Patent number: 10253583
    Abstract: A bend stiffener is operable to be installed on site in a collapsed state and expanded upon installation to provide increased coverage of a tubing string to be reinforced by the bend stiffener. The bend stiffener is expandable upon the tripping of tubing through the bend stiffener. The bend stiffener includes a flexible sleeve having an outer flange at an upper end and sized to receive the tubing. The bend stiffener also includes an intermediary sleeve and an external sleeve. The intermediary sleeve has a cylindrical body and an internal flange for engaging and supporting the outer flange of the flexible sleeve. Similarly, the external sleeve has an internal flange for supporting an external flange of the intermediary sleeve. When installed, the flexible sleeve slides from the intermediary sleeve and the intermediary sleeve slides from the external sleeve so that each sleeve encloses and reinforces a segment of tubing.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: April 9, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Alan Charles John Turner, Richard Ian Gillings, Duncan Forbes Hay
  • Publication number: 20180266194
    Abstract: The disclosed embodiments include a tubing deployment system. In one embodiment, the tubing deployment system includes a first tubing string having a first weightable collar. The tubing deployment system also includes a second tubing string having a second weightable collar. The first weightable collar and the second weightable collar each includes an interlocking locking member and a plurality of receivers spaced radially about an external surface of the respective weightable collar, where each of the plurality of receivers is configured to receive a weight.
    Type: Application
    Filed: December 21, 2015
    Publication date: September 20, 2018
    Inventors: Alan Charles John TURNER, Richard Ian GILLINGS, Duncan Forbes HAY
  • Publication number: 20180216426
    Abstract: A bend stiffener is operable to be installed on site in a collapsed state and expanded upon installation to provide increased coverage of a tubing string to be reinforced by the bend stiffener. The bend stiffener is expandable upon the tripping of tubing through the bend stiffener. The bend stiffener includes a flexible sleeve having an outer flange at an upper end and sized to receive the tubing. The bend stiffener also includes an intermediary sleeve and an external sleeve. The intermediary sleeve has a cylindrical body and an internal flange for engaging and supporting the outer flange of the flexible sleeve. Similarly, the external sleeve has an internal flange for supporting an external flange of the intermediary sleeve. When installed, the flexible sleeve slides from the intermediary sleeve and the intermediary sleeve slides from the external sleeve so that each sleeve encloses and reinforces a segment of tubing.
    Type: Application
    Filed: December 21, 2015
    Publication date: August 2, 2018
    Inventors: Alan Charles John Turner, Richard Ian Gillings, Duncan Forbes Hay
  • Patent number: 7184672
    Abstract: Methods and apparatus are described for processing an optical signal. The optical signal comprises at least a first channel signal at a first wavelength modulated by a first frequency, a second channel signal at a second wavelength modulated by a second frequency, and a third channel signal at a third wavelength modulated by a third frequency. The method includes receiving the optical signal, and splitting the received optical signal into at least two optical bands, a first optical band comprising the first and second channel signals, and a second optical band comprising the third channel signal. A first electrical signal is formed, proportional to the total optical power of the first optical band.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: February 27, 2007
    Assignee: Nortel Networks Limited
    Inventors: Duncan Forbes, Giulio Giovannini
  • Publication number: 20040057729
    Abstract: Methods and apparatus are described for processing an optical signal. The optical signal comprises at least a first channel signal at a first wavelength modulated by a first frequency, a second channel signal at a second wavelength modulated by a second frequency, and a third channel signal at a third wavelength modulated by a third frequency. The method includes receiving the optical signal, and splitting the received optical signal into at least two optical bands, a first optical band comprising the first and second channel signals, and a second optical band comprising the third channel signal. A first electrical signal is formed, proportional to the total optical power of the first optical band.
    Type: Application
    Filed: September 25, 2002
    Publication date: March 25, 2004
    Inventors: Duncan Forbes, Giulio Giovannini
  • Publication number: 20020135840
    Abstract: A wavelength demultiplexer for demultiplexing optical signals carrying data, is also used to route a separate monitoring signal on to any of the demultiplexed output paths, by changing the wavelength of the monitoring signal. This enables optical paths through a switching arrangement to be verified or tested. A multiplexer at the output of the switching arrangement may be used to detect which of the output paths of the switching element has the monitoring signal. This saves the need for individual couplers to couple a monitoring signal on to each of the inputs, and off each of the outputs of the switching element. The saving in terms of component count, cost, and reduced size increases as the number of channels increases.
    Type: Application
    Filed: March 23, 2001
    Publication date: September 26, 2002
    Inventors: Robert Spagnoletti, Adrian Sparks, Duncan Forbes