Patents by Inventor Paul Swann

Paul Swann 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: 20200010205
    Abstract: This invention concerns an aircraft propulsion system in which an engine has an engine core comprising a compressor, a combustor and a turbine driven by a flow of combustion products of the combustor. At least one propulsive fan generates a mass flow of air to propel the aircraft. An electrical energy store is provided on board the aircraft. At least one electric motor is arranged to drive the propulsive fan and the engine core compressor. A controller controls the at least one electric motor to mitigate the creation of a contrail caused by the engine combustion products by altering the ratio of the mass flow of air by the propulsive fan to the flow of combustion products of the combustor. The at least one electric motor is controlled so as to selectively drive both the propulsive fan and engine core compressor.
    Type: Application
    Filed: August 27, 2019
    Publication date: January 9, 2020
    Applicant: Rolls-Royce plc
    Inventors: Peter Swann, Paul Fletcher, Alvise Pellegrini, Ashog Kulathasan
  • Patent number: 10435165
    Abstract: This invention concerns an aircraft propulsion system in which an engine has an engine core comprising a compressor, a combustor and a turbine driven by a flow of combustion products of the combustor. At least one propulsive fan generates a mass flow of air to propel the aircraft. An electrical energy store is provided on board the aircraft. At least one electric motor is arranged to drive the propulsive fan and the engine core compressor. A controller controls the at least one electric motor to mitigate the creation of a contrail caused by the engine combustion products by altering the ratio of the mass flow of air by the propulsive fan to the flow of combustion products of the combustor. The at least one electric motor is controlled so as to selectively drive both the propulsive fan and engine core compressor.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: October 8, 2019
    Assignee: ROLLS-ROYCE PLC
    Inventors: Peter Swann, Paul Fletcher, Alvise Pellegrini, Ashog Kulathasan
  • Patent number: 10371003
    Abstract: The invention concerns an aircraft propulsion system having an engine core within which fuel is combusted to produce an exhaust containing water produced from the combustion of fuel, at least one propulsive fan for generating a mass flow of air which mixes with the exhaust of the engine core, and one or more sensor arranged to sense a condition indicative of vapor trail formation by the exhaust flow from the engine; and a controller arranged to control the ratio of the mass flow of water in the exhaust to the mass flow of air propulsed by the propulsive fan such that the ratio is reduced upon sensing of said condition by the one or more sensor.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: August 6, 2019
    Assignee: ROLLS-ROYCE plc
    Inventors: Peter Swann, Andrew M Rolt, Paul Fletcher
  • Patent number: 9433850
    Abstract: A “boil and bite” mouthguard including projections to improve molding of the mouthguard to the user's teeth is described. The mouthguard also includes a base-wall configuration that acts to minimize thinning of the base during molding and use of the mouthguard.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: September 6, 2016
    Assignee: OPRO International Ltd.
    Inventors: Paul Swann, Peter Searle
  • Publication number: 20120085355
    Abstract: A “boil and bite” mouthguard including projections to improve moulding of the mouthguard to the user's teeth is described. The mouthguard also includes a base-wall configuration that acts to minimise thinning of the base during moulding and use of the mouthguard.
    Type: Application
    Filed: December 20, 2011
    Publication date: April 12, 2012
    Applicant: OPRO International Ltd.
    Inventors: Paul Swann, Peter Searle
  • Patent number: 8100131
    Abstract: A “boil and bite” mouthguard including projections to improve moulding of the mouthguard to the user's teeth is described. The mouthguard also includes a base-wall configuration that acts to minimise thinning of the base during moulding and use of the mouthguard.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: January 24, 2012
    Assignee: OPRO International Ltd.
    Inventors: Paul Swann, Peter Searle
  • Publication number: 20100024833
    Abstract: A “boil and bite” mouthguard including projections to improve moulding of the mouthguard to the user's teeth is described. The mouthguard also includes a base-wall configuration that acts to minimise thinning of the base during moulding and use of the mouthguard.
    Type: Application
    Filed: April 5, 2007
    Publication date: February 4, 2010
    Inventors: Paul Swann, Peter Searle