Patents by Inventor Gareth O. Ridout

Gareth O. Ridout 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).

  • Method and apparatus for illuminating and imaging a can end coated with sealing material
    Patent number: 5805279
    Abstract: A can end to be inspected, including a portion coated by a sealing material, is illuminated by polarized light. The light reflected from the object and sealing material is viewed by a camera through a polarizing filter. The polarizing filter blocks out polarized light reflected by the can end and sealing material that does not contain any defects, but passes light reflected by the sealing material that has been depolarized by a defect in the sealing material.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: September 8, 1998
    Assignee: Alltrista Corporation
    Inventors: Thomas H. Palombo, Gareth O. Ridout