Patents by Inventor Dietmar Bretscher

Dietmar Bretscher 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).

  • Propeller-driven aircraft with engine power scheduling with indicated airspeed
    Patent number: 6808141
    Abstract: Propeller-driven aircraft (30) comprising an engine (31) providing mechanical engine power for rotating a propeller (32), an engine limiting unit (35), an engine control unit (37) for controlling the mechanical engine power of the engine (31), a system (36) for measuring the airspeed and providing information concerning the airspeed to the engine limiting unit (35), wherein the engine limiting unit (35) automatically reduces the mechanical engine power at airspeeds below a certain first airspeed value (V1).
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: October 26, 2004
    Assignee: Pilatus Flugzeugwerke AG
    Inventors: Dietmar Bretscher, William Tyndall
  • Propeller-driven aircraft with engine power scheduling with indicated airspeed
    Publication number: 20030052224
    Abstract: Propeller-driven aircraft (30) comprising an engine (31) providing mechanical engine power for rotating a propeller (32), an engine limiting unit (35), an engine control unit (37) for controlling the mechanical engine power of the engine (31), a system (36) for measuring the airspeed and providing information concerning the airspeed to the engine limiting unit (35), wherein the engine limiting unit (35) automatically reduces the mechanical engine power at airspeeds below a certain first airspeed value (V1).
    Type: Application
    Filed: September 16, 2002
    Publication date: March 20, 2003
    Applicant: Pilatus Flugzeugwerke AG
    Inventors: Dietmar Bretscher, William Tyndall