Patents by Inventor Howard D. Hall

Howard D. Hall 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).

  • Approach for positioning, fabricating, aligning and testing grazing, convex, hyperbolic mirrors
    Patent number: 5452142
    Abstract: A convex, hyperbolic mirror (70) has a concave depression (72) made in a truncated apex end of the mirror. Such a depression may be used for aligning the mirror with respect to a Hindle sphere (74) or a primary mirror (86) in an optical system. An additional depression may be placed in an opposite end of the mirror and used together with the first depression to position the mirror with respect to an axis of rotation thereof to facilitate machining (66) of the mirror or testing (68). Tooling balls (52, 54) may be placed in the depressions and gas passages may be provided in the tooling balls for forming a gas bearing between the depressions and the tooling balls.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: September 19, 1995
    Assignee: Hughes Aircraft Company
    Inventor: Howard D. Hall
  • Apparatus for finishing a conic surface
    Patent number: 5218785
    Abstract: The apparatus for finishing the conic surface includes a flexible base member and rigid side members, which rigid side members are secured such that the planes thereof intersect in a line that is collinear with the axis of the conic surface to be finished.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: June 15, 1993
    Assignee: Hughes Aircraft Company
    Inventor: Howard D. Hall