Patents by Inventor Kendrick E. Richardson

Kendrick E. Richardson 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 producing parts by layered subtractive machine tool techniques
    Patent number: 5590454
    Abstract: A method of forming a three-dimensional object (38) is provided using a combination of molding and machining. In its most basic form, the method of the present invention is achieved by depositing a first layer of mold material (40) onto a support surface (20), machining a first cavity (42) into the first layer of mold material, depositing a first layer of construction material (52) onto the first layer of mold material such that an overlapping portion (52a) of the first layer of construction material fills the first cavity to form a first three-dimensional section of the object and such that a superposing portion (52b) of the layer of construction material covers the first layer of mold material, and machining the superposing portion (52b) to form a second three-dimensional section of the object. A larger object may be produced by repeating such steps in like sequence to form additional three-dimensional sections.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: January 7, 1997
    Inventor: Kendrick E. Richardson