Patents by Inventor John P. Hartung

John P. Hartung 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: 4109892
    Abstract: An adjustable easel of generally triangular configuration mounted on a rotatable support disc or the like. The angle of inclination and/or the height of the front support for an oil painting or the like may be adjusted by either changing the length of the rear support, which pivots about its base, and/or by changing the distance between the respective base pivots of the front and rear supports. In addition, since the easel is mounted on a rotatable support, the entire easel may be turned in or to any position for best viewing and light, without motion of the painter or loss of concentration on the subject being painted. This feature in addition to the movable vertical adjustment allows the easel to be disposed at many angles or orientations as desired for best positioning relative to the object being painted and the light source.
    Type: Grant
    Filed: June 30, 1977
    Date of Patent: August 29, 1978
    Inventor: John P. Hartung