Patents by Inventor Walter Glass

Walter Glass 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).

  • Light fixture and louver construction
    Patent number: 4849867
    Abstract: A light fixture including a louver assembled from blades formed of thin metal strips. The blades each have separate parabolic lower sidewalls and upper sidewalls. The parabolic upper sidewalls terminate in edge strips which overlap to close the blades when the blades are nested to form the louver. Nesting of the blades forces the sidewalls together against a resilient bias, the bias tending to rigidify the louver after assembly.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: July 18, 1989
    Assignee: Litecell, Inc.
    Inventors: Walter Glass, Herman van der Vaart
  • Flanged louver construction
    Patent number: 4821160
    Abstract: A louver construction comprising a grid formed of cubes molded unitarily with a flange extending around the periphery of the grid. The cubes include a border row making up the periphery of the grid. The cubes in the border row have different dimensions than those inside them in the grid. The flange may vary in width but the outside dimensions of the louver remain the same. As a result, the same size louver grids will fit different size light box openings.
    Type: Grant
    Filed: April 14, 1987
    Date of Patent: April 11, 1989
    Assignee: American Louver Company
    Inventor: Walter Glass