Patents by Inventor Drew Henderson

Drew Henderson 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: 7386227
    Abstract: A method and apparatus for photographic illumination comprising a light box having a top surface with spaced apart walls depending therefrom having an aperture in one wall thereby forming a chamber for the placement therein of an article or articles to be photographed and wherein said light box material is light diffusing. The method further comprises a camera mountable apparatus having means for securing said apparatus to a camera, means for producing illumination, means for producing light beams including fiber optics and multiple LEDs, means for varying the number of beams projected onto the photographic subject. The present invention uses two different light sources, for the photography of gemstones or the like.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: June 10, 2008
    Inventor: Drew Henderson
  • Patent number: 4265371
    Abstract: Foodstuff vending apparatus employing improved solid-state control is provided in accordance with the teachings of the present invention. In accordance with the teachings of the present invention, a processor and accompanying memory are relied upon to cause vending to occur in a programmed sequence in accord with selected vending conditions. The processor and memory are programmed in a manner to ascertain when a vending operation is about to be initiated and thereafter to invite an operator to specify a product to be vended and conditions under which such product is to be vended. Elements of the product to be vended are then dispensed, under program control, in accordance with the product designated and the conditions specified at selectable rates which are readily variable.
    Type: Grant
    Filed: October 6, 1978
    Date of Patent: May 5, 1981
    Assignee: Trafalgar Industries Inc.
    Inventors: Mahendrakumar D. Desai, Drew Henderson