Patents by Inventor Eldar Onsøyen

Eldar Onsøyen 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).

  • Displacer piston assembly
    Patent number: 7866153
    Abstract: A split displacer piston assembly (1) in conjunction with a Stirling engine is disclosed. Said assembly comprises of two main parts, displacer dome (8) and displacer base (9). Within the displacer dome there are several heat shields (10). The displacer base has a piston ring assembly (12) installed in an outer perimeter groove and fixed between the displacer base and displacer dome is a displacer guide ring (11). In order to service and or replace these parts rapidly, the displacer dome and displacer base are fastened by threaded engagement.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: January 11, 2011
    Assignee: Somemore Limited
    Inventors: Per D. Sollie, Lars Kjosbakken, Sven Erik Fossum, Eldar Onsøyen, Sverre Johansen