Patents by Inventor Francis W. Barton

Francis W. Barton 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: 5372612
    Abstract: A semiconductor material contacting member which greatly reduces potential for semiconductor material breakage is provided. Preferably, the contacting member is a ceramic cylinder (60) which can be used to brace a semiconductor wafer (14) in a wafer station (2) of a sputtering system. The ceramic cylinder has an annular shoulder at one end (68), with a flat outer surface. The flat outer surface contacts the wafer (14) along a line (74). The line contacting surface (74) distributes pressure and heat across the contacting surface. Additionally, the ceramic cylinder (60) is relatively soft, thus avoiding damaging the semiconductor material.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: December 13, 1994
    Assignee: Motorola, Inc.
    Inventors: Wayne A. Cronin, Francis W. Barton, Jr., Kirby F. Koetz
  • Patent number: 5273330
    Abstract: The present invention includes a mounting assembly for securing an energy absorber unit to vehicular support. A collar having a hub portion is secured to the energy absorber. The hub portion includes at least one circumferential ramp and flange. A mounting plate having at least one tab is secured to the vehicular support. As the collar is placed adjacent the mounting plate, the ramp is rotated into a slip fit with the tab. Preferably, a locking projection of the mounting plate is received in an opening on the flange of the collar to prevent inadvertent rotation of the collar out of a secured position. Also, an alignment key and notch can be formed on the mounting plate and collar, respectively, to facilitate proper orientation of the collar during installation.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: December 28, 1993
    Assignee: General Motors Corporation
    Inventors: Ronald G. Petry, Richard R. Lovelace, Karl D. Freeman, Francis W. Barton