Patents by Inventor Christer Bratt

Christer Bratt 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).

  • Heater head for a multi-cylinder hot gas engine
    Patent number: 4499726
    Abstract: A heater head of a multi-cylinder hot gas engine having an annular regenerator housing surrounding each cylinder is provided with three manifolds at the top of each cylinder-regenerator housing unit.Each manifold is arcuately shaped and covers 360/2.multidot.n degrees--n being the number of engine cylinders.One manifold has an outer and inner row of arcuately disposed tube connections to the interior of the cylinder, and is disposed between the two other manifolds.One of the remaining manifolds has a single row of tube connections to the regenerator said row being a continuation of said inner row whereas the last manifold has a single row of tube connections being a continuation of the said outer row.
    Type: Grant
    Filed: December 6, 1983
    Date of Patent: February 19, 1985
    Assignee: United Stirling AB
    Inventor: Christer Bratt
  • Hot gas engine heater head
    Patent number: 4069670
    Abstract: In a heater head for a hot gas engine the connection between the regenerator tops and the cylinder tops consists of pipes of equal shape and dimensions. The pipes are shaped partly as involutes on a cone partly as straight tubes on a cylinder surface to ensure uniform gaps between them.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: January 24, 1978
    Assignee: Kommanditbolaget United Stirling (Sweden) AB & Co.
    Inventors: Jan Christer Bratt, Stefan Istvan Lorant, Bengt-Ove Moody Moodysson, Nils Kaj Gunnar Rosenqvist