Patents by Inventor Espen Tøndell

Espen Tøndell 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).

  • Method of operation and regulation of a vapour compression system
    Patent number: 7621137
    Abstract: The present invention involves a compression refrigeration system including a compressor, a heat rejector, expansion means and a heat absorber connected in a closed circulation circuit that may operate with supercritical high-side pressure. An apparatus and method are provided to optimize energy efficiency.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: November 24, 2009
    Assignee: Sinvent AS
    Inventors: Kåre Aflekt, Armin Hafner, Arne Jakobsen, Petter Nekså, Jostein Pettersen, Håvard Rekstad, Geir Skaugen, Trond Andresen, Espen Tøndell, Munan Elgsæther
  • Vapor compression heat pump system
    Patent number: 7574874
    Abstract: A compression refrigeration system that includes a compressor, a heat rejector, expansion means and a heat absorber connected in a closed circulation circuit that may operate with supercritical high-side pressure.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: August 18, 2009
    Assignee: Sinvent AS
    Inventors: Kåre Aflekt, Armin Hafner, Arne Jakobsen, Petter Nekså, Jostein Pettersen, Håvard Rekstad, Geir Skaugen, Trond Andresen, Espen Tøndell, Munan Elgæther