Patents by Inventor Thomas F. Sheppard

Thomas F. Sheppard 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).

  • Corrugated steel deck system including acoustic features
    Patent number: 7908810
    Abstract: The present invention relates to a sound rated floor system for inhibiting sound transmission between floors. The system includes a corrugated steel deck; a first layer of cementitious material or board or sheet applied over the corrugated steel deck; a sound insulation mat or board applied over the first layer; a second layer of cementitious material applied over the sound insulation mat or board. The floor system has an IIC rating of at least 25 and the corrugated steel deck provides at least 50 percent of the ultimate load carrying capacity under static and impact loading of the floor system with a floor deflection of at most 1/360 of the floor span.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: March 22, 2011
    Assignee: United States Gypsum Company
    Inventors: Stephen W. Payne, Jr., Kurt Goodfriend, David Bruce McDonald, Dennis A. Socha, John Ellicson, Francis H. Laux, Russell A. Dombeck, Thomas F. Sheppard
  • Water-based stain
    Patent number: 4386180
    Abstract: A water-based stain having a working time of from about 1 to about 3 minutes and a tack-free drying time of from about 10 to about 15 minutes at 160.degree. F. comprises an acrylic latex, a drying oil, ester gum, a glycol, a hydrocarbonaceous solvent, and pigment.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: May 31, 1983
    Assignee: United States Gypsum Company
    Inventors: Geronimo E. Lat, Thomas F. Sheppard