Patents by Inventor Donald A. Rosenwinkel

Donald A. Rosenwinkel 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: 4283127
    Abstract: A pair of novelty eyeglasses includes a frame for supporting them on the wearer's head and a pair of transparent lenses. The frame includes a pair of support earpieces connected by hinges to the frames. Two light emitting diodes or LEDs are secured to the frame, one adjacent each lense and connected to a portable source of power, such as small batteries, mounted in one of the earpieces. A hinge switch, defined at one of the hinges connecting one of the earpieces to the frame, must be closed by moving the respective earpiece to the open position before the LEDs can be actuated. A manually actuatable switch is secured to the frame in series with the batteries and the light emitting diodes. The manually actuatable switch can be selectively closed by the user to energize the LEDs thereby creating a novel effect.
    Type: Grant
    Filed: November 29, 1979
    Date of Patent: August 11, 1981
    Assignee: Marvin Glass & Associates
    Inventors: Donald A. Rosenwinkel, Harry Disko
  • Patent number: 4261564
    Abstract: Practice apparatus for use in measuring azimuth angle, equivalent distance and angle of elevation of a ball that is punted, passed or kicked comprises a base including means for securing the device in fixed position on the ground or other surface. A tether line extends from the base and is connected at a free outer end with the ball which may be kicked from a tee, punted, or passed to extend and exert tension on the tether line. The angle of elevation and/or angle of azimuth of the tether line is increased or changed when the ball is kicked or thrown. The practice apparatus includes a first element for measuring and indicating the angle of elevation of the tether when the ball is moved away from a starting point by kicking or throwing, a second element for measuring the azimuth angle or direction of the path of movement of the ball and a third element for indicating the equivalent distance that the ball would be moved except for the restraint of the tether line.
    Type: Grant
    Filed: September 27, 1979
    Date of Patent: April 14, 1981
    Assignee: Marvin Glass & Associates
    Inventors: Edward T. Holahan, Burton C. Meyer, Donald A. Rosenwinkel