Patents by Inventor Douglas N. Cabell

Douglas N. Cabell 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: 4043594
    Abstract: A chair rest member carried by the upper reach of a vertically extending back plate includes means providing for both vertical and angular displacement of the rest member relative the back plate. A screw carried by the back plate engages a captive nut disposed within a vertical slot within the frame of the rest member to allow vertical adjustment therebetween while angular or tilt adustment is achieved by means of a screw wheel carried by the lower portion of the rest member enaging the juxtaposed face of the back plate and which, when actuated, tilts the rest member about a bearing surface above the captive nut. A curved washer attached to the captive nut permits retightening of the captive nut screw to fixedly retain the rest member in its alternate positions.
    Type: Grant
    Filed: March 12, 1976
    Date of Patent: August 23, 1977
    Assignee: GF Business Equipment, Inc.
    Inventor: Douglas N. Cabell