Patents by Inventor Didier von Hatten

Didier von Hatten 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).

  • Gas compression device having isolated compression and lubrication chambers
    Patent number: 5086691
    Abstract: A high-performance, robust gas-compression device of long-term reliability is adapted in particular for storing nitrogen gas under compression, and includes a substantially cylindrical body (1), a piston (4) partially projecting into the gas-storage chamber (2), upper (7) and lower (6) piston guiding sleeves surrounding the piston, a lubrication chamber (9) formed in one of the guiding sleeves, adapted for holding a lubrication fluid for lubricating the guiding sleeves, and respective annular sealing joints (14, 19) which are accomodated in the guiding sleeves. One annular sealing joint is formed with an annular groove in communication with the principal gas-storage chamber, thereby exposing that sealing joint to a pressure prevailing in the principal gas-storage chamber; the other sealing joint is exposed to a constant pressure from the lubricating fluid.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: February 11, 1992
    Assignee: Societe des Usines Quiri & Cie
    Inventor: Didier von Hatten