Patents by Inventor Erwin Ostermann

Erwin Ostermann 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).

  • Disk valve for a reciprocating compressor
    Patent number: 4703772
    Abstract: The disk valve employs a conventional valve seat and valve disk arrangement in which the perforations of the valve disk are offset from the perforations of the valve seat. A retainer having venturi-shaped openings is used to reduce flow losses due to eddying of kinetic energy. The valve disk perforations are also formed with flow cross-sections which are greater than the minimum flow cross-section of the aligned retainer openings.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: November 3, 1987
    Assignee: Sulzer Brothers Limited
    Inventor: Erwin Ostermann