Patents by Inventor Edward Roll

Edward Roll 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).

  • Audio visual teaching method and apparatus
    Patent number: 4015344
    Abstract: A method and apparatus for teaching physical arts by establishing an image of an instructor in a virtual optical plane, and simultaneously establishing an image of an action-imitating pupil also in a virtual optical plane, to enable the pupil to compare his virtual image with that of the instructor.A commercial tape, for visual reproduction, shows an instructor performing before a mirror to demonstrate the action to be taught, and shows a view of his back and a view of his reflection in the mirror. When the tape is visually reproduced on an appropriate surface, an auxiliary pupil's mirror disposed edgewise adjacent the surface, lets a practicing pupil see his own image for comparison with the instructor's image.
    Type: Grant
    Filed: December 28, 1973
    Date of Patent: April 5, 1977
    Inventors: Herbert Michaels, William Stanton, Edward Roll