Patents Assigned to Precious Plate Florida
  • Perforated substrate and method of manufacture
    Patent number: 5842398
    Abstract: A perforated substrate having half of the perforations formed from one major surface of the substrate and the other half formed from the opposite major surface, the two major surface being coplanar is described. This introduces equal and opposite stress forces into the substrate which essentially cancel each other and provide a product meeting exacting planarity requirements.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: December 1, 1998
    Assignee: Precious Plate Florida
    Inventors: Carlton G. Jenkins, David R. Hurst
  • Perforated substrate and method of manufacture
    Patent number: 5578398
    Abstract: A perforated substrate having half of the perforations formed from one major surface of the substrate and the other half formed from the opposite major surface, the two major surface being coplanar is described. This introduces equal and opposite stress forces into the substrate which essentially cancel each other and provide a product meeting exacting planarity requirements.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: November 26, 1996
    Assignee: Precious Plate Florida
    Inventors: Carlton G. Jenkins, David R. Hurst