Patents by Inventor Erik H. O. Jeppsson

Erik H. O. Jeppsson 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).

  • Valve
    Patent number: 4271860
    Abstract: A valve has a pressure chamber within its housing for remote operation. A stem in the housing has axial passages for power fluid and for cleaning liquid. The valve member is a sleeve, biased closed, which engages a movable seat which is resiliently supported. Leakage around the seals between the sleeve and the stem and between the sleeve and the housing is received in chambers and drained away from the housing to prevent mixing of the cleaning liquid and the processing liquids.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: June 9, 1981
    Assignee: Alfa-Laval AB
    Inventor: Erik H. O. Jeppsson