Patents by Inventor Jörgen Sahlström

Jörgen Sahlström 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).

  • Electrical heating resistance element
    Patent number: 7164103
    Abstract: An electrical resistance heating element having a glow zone and two power supply terminals. The glow zone of the element is tubular. A tubular union is provided between each of the power supply terminals and a respective end of the glow zone, wherein the inner diameter of the union is smaller than the inner diameter of the glow zone. A transition region extends between each union and a respective glow zone end and has a progressively decreasing wall thickness in the direction from the union toward the glow zone.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: January 16, 2007
    Assignee: Sandvik Intellectual Property Aktiebolag
    Inventors: Jan Andersson, Emil Eriksson, Jörgen Sahlström