Patents by Inventor Stephen Mark Flitcroft

Stephen Mark Flitcroft 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).

  • Reinforced splines and their manufacture
    Patent number: 8562242
    Abstract: A spline structure, in the form of an aeronautical brake drive bar, has wheel attachment points at its ends for engaging a wheel rim. Each wheel carries a regularly spaced series of these drive bars for engaging friction discs carried by the wheel hub. The main body of each brake drive bar is formed from titanium internally reinforced by composite blocks each comprising a bundle of silicon carbide fibers contained in a matrix that is diffusion bonded within the main body. Other spline structures can be formed in a similar manner.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: October 22, 2013
    Assignee: Tisics Limited
    Inventors: David Philip Murgatroyd, Stephen Mark Flitcroft, Renny Neil Moss, Stephen John Kyle-Henney
  • Reinforced Splines and their Manufacture
    Publication number: 20100014913
    Abstract: A spline structure, in the form of an aeronautical brake drive bar, has wheel attachment points at its ends for engaging a wheel rim. Each wheel carries a regularly spaced series of these drive bars for engaging friction discs carried by the wheel hub. The main body of each brake drive bar is formed from titanium internally reinforced by composite blocks each comprising a bundle of silicon carbide fibres contained in a matrix that is diffusion bonded within the main body. Other spline structures can be formed in a similar manner.
    Type: Application
    Filed: May 31, 2007
    Publication date: January 21, 2010
    Applicant: TISICS LIMITED
    Inventors: David Philip Murgatroyd, Stephen Mark Flitcroft, Renny Neil Moss, Stephen John Kyle-Henney
  • Method of treatment of metal matrix composites
    Patent number: 5964967
    Abstract: A treatment process for a composite comprising a matrix of a precipitation hardenable aluminum alloy and a particulate or short fiber ceramic reinforcement. The process includes hot and/or cold working the composite, subjecting the composite to a controlled heating step in which the composite is raised from ambient temperature to a temperature of from 250 to 450.degree. C. at a rate of temperature increase less than 1000.degree. C. per hour, and subjecting the resulting heat treated composite to a solution treating step.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: October 12, 1999
    Assignees: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland, Defence Research Agency
    Inventors: Timothy Frederick Bryant, Simon Brian Dodd, Stephen Mark Flitcroft, William Sinclair Miller, Roger Moreton, Christopher John Peel