Patents by Inventor David R. Yeoman

David R. Yeoman 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: 4850792
    Abstract: A vertical axis wind turbine includes a pair of wind deflectors for directing the wind current into the rotor assembly. The wind deflectors are connected to the wind turbine so that their positions are automatically adjusted as a function of wind velocity as well as wind direction to maximize efficiency. The wind deflectors automatically move to a position downwind of the rotor assembly during periods of unusually high wind velocity and actuate a rotational governor which increases the angular inertia of the turbine to limit the speed of the turbine shaft during such high wind conditions.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: July 25, 1989
    Inventor: David R. Yeoman
  • Patent number: 4652206
    Abstract: A vertical axis wind turbine includes a pair of wind deflectors for directing the wind current into the rotor assembly. The wind deflectors are connected to the wind turbine so that their positions are automatically adjusted as a function of wind velocity as well as wind direction to maximize efficiency. The wind deflectors automatically move to a position downwind of the rotor assembly during periods of unusually high wind velocity and actuate a rotational governor which increases the angular inertia of the turbine to limit the speed of the turbine shaft during such high wind conditions.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: March 24, 1987
    Inventor: David R. Yeoman
  • Patent number: 4437963
    Abstract: Apparatus for the electrolysis of water comprises an elongated tube and an electrolysis assembly provided at one end of the tube defining an interior chamber which constitutes an extension thereof. The electrolysis assembly includes at least one fixed stator and at least one rotatably mounted rotor and drive means for rotating the rotor in the form of propeller blades mounted on a shaft which is connected to a transmission to the rotor. A pair of fixed electrodes extend across the interior chamber of the electrolysis assembly. A matrix of Wiegand modules are affixed to the rotor and a corresponding matrix of magnet pairs are fixed to the stator. Appropriate circuitry is provided which couples the positive and negative leads of the Wiegand modules to respective ones of the electrodes.
    Type: Grant
    Filed: September 10, 1981
    Date of Patent: March 20, 1984
    Inventor: David R. Yeoman