Patents by Inventor Hakan Hedenberg

Hakan Hedenberg 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).

  • Arrangement for maintaining gas in a variable volume container at a constant pressure
    Publication number: 20020104539
    Abstract: A gas container has a gas inlet, a gas outlet, a variable-volume chamber connected to the gas inlet and the gas outlet and a constant force applicator acting on the variable-volume chamber so that constant gas pressure prevails in the variable-volume chamber, regardless of variations in the chamber's volume. The constant force applicator is formed by a spring and a force transfer mechanism that interact with each other through a center of rotation (14) and an application point. The force transfer mechanism varies the distance between the center of rotation and the application point according to the variation in the volume of the variable-volume chamber.
    Type: Application
    Filed: January 31, 2002
    Publication date: August 8, 2002
    Applicant: Siemens-Elema AB
    Inventor: Hakan Hedenberg