Patents Assigned to Siv Ing Per Olav Haughorn AS
  • Pump Piston Device
    Publication number: 20120042773
    Abstract: A pump piston device is for reciprocating movement in a pump cylinder. Between the pump piston and the pump cylinder, an annular space is formed which is defined by a first seal and a second seal, the annular space being pressurized, and the first seal and the second seal being in a common piece of material which constitutes the pump piston.
    Type: Application
    Filed: May 5, 2010
    Publication date: February 23, 2012
    Applicant: Siv Ing Per Olav Haughorn AS
    Inventor: Per Olav Haughom