Patents by Inventor David L. Bridges

David L. Bridges 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: 5030045
    Abstract: A scored wall panel provides shallow grooves to simulate installed wall tile or the like. The shallow grooves are provided with an inner concave wall having a radius of curvature substantially exceeding the thickness of the panel and corners tangentially intersecting the inner wall having a radius of curvature substantially less than the thickness of the panel. The panel thickness varies from one location to another and the grooves are formed so that the variations in thickness of the panel do not cause variations in the width of the grooves. Further, the grooves are sufficiently shallow so that the material of the panel extending past the groove maintains necessary panel strength. The edges of the radiused corners remote from the inner surface of the grooves extend substantially perpendicular to the faces of the panel and are spaced from the rearward face of the panel by a distance substantially equal to the minimum thickness of the panel.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: July 9, 1991
    Assignee: Commercial & Architectural Products, Inc.
    Inventors: John L. Dawson, David L. Bridges
  • Patent number: 4937992
    Abstract: A scored will panel provides shallow grooves to simulate installed wall tile or the like. The shallow grooves are provided with an inner concave wall having a radius of curvature substantially exceeding the thickness of the panel and corners tangentially intersecting the inner wall having a radius of curvature substantially less than the thickness of the panel. The panel thickness varies from one location to another and the grooves are formed so that the variations in thickness of the panel do not cause variations in the width of the grooves. Further, the grooves are sufficiently shallow so that the material of the panel extending past the groove maintains necessary panel strength. The edges of the radiused corners remote from the inner surface of the grooves extend substantially perpendicular to the faces of the panel and are spaced from the rearward face of the panel by a distance substantially equal to the minimum thickness of the panel.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: July 3, 1990
    Assignee: Commercial and Architectural Products, Inc.
    Inventors: John L. Dawson, David L. Bridges