Patents by Inventor Charles D. Hosford

Charles D. Hosford 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).

  • Sputter coating of microspherical substrates by levitation
    Patent number: 4302311
    Abstract: Microspheres are substantially uniformly coated with metals or nonmetals by simultaneously levitating them and sputter coating them at total chamber pressures less than 1 torr. A collimated hole structure 12 comprising a parallel array of upwardly projecting individual gas outlets 16 is machined out to form a dimple 11. Glass microballoons, which are particularly useful in laser fusion applications, can be substantially uniformly coated using the coating method and apparatus.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: November 24, 1981
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Arthur T. Lowe, Charles D. Hosford
  • Folding stool and table
    Patent number: 4046084
    Abstract: An article of folding furniture such as a stool or a table is made from board or other sheet material by a few cutting operations that provide substantially all the load bearing parts necessary for the complete unit. When assembled, the furniture article exhibits symmetry about the folding axis and its parts complement one another so that when the article is folded, the parts interfit to form a flat compact package. Resultantly, the article can be stored singly in a confined space or in numbers in a compact stack.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: September 6, 1977
    Inventors: Charles D. Hosford, Barry Simpson
  • Folding stool
    Patent number: D250498
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: December 12, 1978
    Inventors: Charles D. Hosford, Barry Simpson