Patents by Inventor Alex Geoffrey Lehmann

Alex Geoffrey Lehmann 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).

  • Toroidal heliostat
    Patent number: 9454001
    Abstract: A toroidal heliostat and reflector frame for a heliostat are provided which passively adjust the apparent sagittal and/or tangential focal lengths of the reflector. This adjustment is provided by way of passive deflection of the reflector caused by one or more of gravitationally-induced deflection of one or more components of the heliostat; differential thermal expansion of materials of the heliostat; and/or relative movement between two or more components of the heliostat. Careful design of the heliostat enables optimisation of the power delivery profile and/or shape of the reflected image throughout the day.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: September 27, 2016
    Assignee: HELIOSYSTEMS PTY LTD.
    Inventors: Alex Geoffrey Lehmann, Peter Richard Allenspach
  • TOROIDAL HELIOSTAT
    Publication number: 20140043705
    Abstract: A toroidal heliostat and reflector frame for a heliostat are provided which passively adjust the apparent sagittal and/or tangential focal lengths of the reflector. This adjustment is provided by way of passive deflection of the reflector caused by one or more of gravitationally-induced deflection of one or more components of the heliostat; differential thermal expansion of materials of the heliostat; and/or relative movement between two or more components of the heliostat. Careful design of the heliostat enables optimisation of the power delivery profile and/or shape of the reflected image throughout the day.
    Type: Application
    Filed: April 13, 2012
    Publication date: February 13, 2014
    Applicant: Heliosystems Pty Ltd.
    Inventors: Alex Geoffrey Lehmann, Peter Richard Allenspach