Patents by Inventor Alan C. Hayes

Alan C. Hayes 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).

  • Insulation system for process vessel
    Patent number: 4493816
    Abstract: An insulation system for protecting metal membranes that seal a fluidization grid floor in a process vessel to the vessel wall or to a standpipe in the vessel. The seal is comprised of erosion-resistant castable refractory, compressible insulation and metal in specifically arranged layers and in a manner such that expansion of the grid floor does not stress the castable refractory.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: January 15, 1985
    Inventors: Donald E. Becker, Alan C. Hayes, Joseph W. Porter