Patents by Inventor Erik Preiholt

Erik Preiholt 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).

  • Patent number: 7574987
    Abstract: A device intended for heating the coolant of a motor driven vehicle in order to heat the engine of the vehicle. The device includes a connection arrangement arranged to allow electrical connection of the device to a current source and a heat-generating element including an electrical conductor designed to generate heat when a current flows through the conductor, which heat-generating element is designed to be in contact with and transfer the generated thermal energy to the coolant water, wherein the electrical conductor is designed in such a way that the conductor is destroyed if the heat transfer from the heat-generating element substantially decreases during a time period, wherein the current through the conductor is interrupted.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: August 18, 2009
    Assignee: Calix AB
    Inventor: Erik Preiholt
  • Publication number: 20070137599
    Abstract: A device intended for heating the coolant of a motor driven vehicle in order to heat the engine of the vehicle. The device includes a connection arrangement arranged to allow electrical connection of the device to a current source and a heat-generating element including an electrical conductor designed to generate heat when a current flows through the conductor, which heat-generating element is designed to be in contact with and transfer the generated thermal energy to the coolant water, wherein the electrical conductor is designed in such a way that the conductor is destroyed if the heat transfer from the heat-generating element substantially decreases during a time period, wherein the current through the conductor is interrupted.
    Type: Application
    Filed: December 4, 2006
    Publication date: June 21, 2007
    Applicant: Calix AB
    Inventor: Erik Preiholt
  • Patent number: 5893676
    Abstract: An interlocking device includes two opposed racks having intermeshable teeth, respectively, a guide surface disposed on one of the opposed racks, a guide, and a resilient retainer holding the guide against the guide surface for sliding movement of the guide relative to the guide surface. The guide and the guide surface cooperate with each other to provide an arrangement wherein when the one rack is pressed against the other rack, the guide comes into engagement with the other rack and the guide surface slides on the guide, causing meshing engagement of the teeth of the one rack with the teeth of the other rack.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: April 13, 1999
    Assignee: Fuji Kiko Co., Ltd.
    Inventors: Yoshimi Yamamoto, Erik Preiholt