Patents by Inventor Carleton R. Good

Carleton R. Good 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: 4027954
    Abstract: A device for testing eyes provided with a rotatable drum located within a light impermeable casing in which the drum carries a plurality of slides bearing characters positioned on the perimeter of the drum and illuminated by a lamp located within the drum, and in which the characters may be viewed by the person whose eyes are being tested through an optical system. The optical system has a direct path to a near testing station on the drum for near vision testing, and a longer indirect path to a far vision testing station on the drum utilizing a mirror positioned perpendicularly to the far vision testing station to increase the path length.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: June 7, 1977
    Assignee: School Health Supply Company
    Inventor: Carleton R. Good