Patents by Inventor Manfred Thaiss

Manfred Thaiss 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).

  • Patent number: 6016604
    Abstract: A portable, hand-guided working tool has a drive motor and a motor housing in which the drive motor is housed. The motor housing has a front side and a rear side when viewed in the direction of the longitudinal center axis of the working tool. A tool member is connected to the front side of the motor housing and extends forwardly in the direction of the longitudinal center axis. The tool member is driven by the drive motor. The rear grip is connected by vibration damping elements to the rear side of the motor housing and extends rearwardly in the direction of the longitudinal center axis. An abutment device includes a first abutment member connected to the motor housing and positioned between the rear end and the rear grip and includes a second abutment member connected to the rear grip and cooperating with the first abutment member for limiting a relative movement between the motor housing and the rear grip.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: January 25, 2000
    Assignee: Andreas Stihl AG & Co.
    Inventors: Gunter Wolf, Manfred Thaiss
  • Patent number: 5353754
    Abstract: The invention is directed to a fuel-injection arrangement for a two-stroke engine in a motor-driven chain saw. An injection pump is mounted in a base housing with the injection pump including a pump piston axially displaceable in a pump cylinder. The pump piston delimits a pump chamber. The pump chamber is connected via a suction valve to a fuel tank. The fuel drawn by suction is pumped by the pump piston via a pressure valve, an injection line and an injection valve to the engine. For driving the pump piston, the latter is connected at one end to a membrane via a membrane plate. The membrane delimits a work chamber charged with fluctuating crankcase pressure. A simple assembly is provided by arranging the pump chamber, the suction valve and the pressure valve in a common valve housing which, in turn, is seated in the base housing of the injection pump in a seal-tight manner. The injection line is connected directly to the valve housing.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: October 11, 1994
    Assignee: Andreas Stihl
    Inventors: Michael Wissmann, Hans Nickel, Roland Schierling, Roland Adam, Manfred Thaiss, Werner Geyer