Patents by Inventor Donn D. Dunbar

Donn D. Dunbar 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).

  • Manually operated shade lowering and raising mechanism for atrium walls
    Patent number: 4694877
    Abstract: A manually operated device for raising and lowering shades on glass-enclosed atrium or greenhouse walls which includes a self-leveling feature which corrects for uneven shade position and enables one to operate a shade on an atrium or greenhouse wall without the use of a motor-driven system.Also disclosed is a manually operated device for raising and lowering shades on glass-enclosed atrium or greenhouse walls which may be raised or lowered with one hand grasping a handhold on either side of the shade, making it unnecessary to use both handholds.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: September 22, 1987
    Assignee: Inside Outfitters, Inc.
    Inventor: Donn D. Dunbar