Patents by Inventor Richard I. Seddon

Richard I. Seddon 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: 4276855
    Abstract: A coating apparatus having a housing and a vacuum pump for establishing a vacuum in the housing. First and second rotors are disposed within the housing for rotation about axes which are offset from the horizontal by less than 45.degree. whereby the upper portions of the rotors are in relatively close proximity to each other and the lower portions of the rotors are spaced apart from each other. A source of coating material is disposed between the rotors generally in line with the axis of rotation of the rotors.
    Type: Grant
    Filed: May 2, 1979
    Date of Patent: July 7, 1981
    Assignee: Optical Coating Laboratory, Inc.
    Inventor: Richard I. Seddon
  • Patent number: 4222345
    Abstract: Coating apparatus having a vacuum chamber and a rotary motion assembly rotatably mounted in the vacuum chamber. Drive means is carried by the vacuum chamber for rotating the rotary motion assembly on an axis. At least one coating source is disposed within the chamber and is generally coincident with the axis of rotation for the rotary motion assembly. A mask structure is mounted in the chamber for rotational movement about an axis which is generally coincident with the axis of rotation of the rotary motion assembly. Additional drive means is provided for rotating the mask structure as the rotary motion assembly is rotated.
    Type: Grant
    Filed: November 30, 1978
    Date of Patent: September 16, 1980
    Assignee: Optical Coating Laboratory, Inc.
    Inventors: Nils H. Bergfelt, Richard I. Seddon