Patents by Inventor John D. Ream

John D. Ream 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).

  • Metal chimney assembly
    Patent number: 4781402
    Abstract: A metal chimney assembly with floating casing walls supported by expansion clips that allow differential expansion longitudinally and radially of banded together chimney wall sections. The clips are attached to interior flue walls and extend outwardly for engagements into retainers on inner circumferences of exterior casing walls and adjacent thereagainst for holding the casing walls in a spaced relationship with the flue walls during expansion and contraction of the chimney wall sections.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: November 1, 1988
    Assignee: Metal-Fab, Inc.
    Inventors: John D. Ream, David M. Fetters
  • Expansion and length adjustment joint
    Patent number: 4720125
    Abstract: An expansion and length adjustment joint for use with a double walled metal chimney, the chimney having an inner flue wall and an outer casing wall, the adjustment joint having an inner sliding sleeve with a flange at one end thereof. An upper flue wall connecting band is sealingly disposed around the inner sliding sleeve flange and a flange of the inner flue wall. A gasket retaining collar is secured against the inner sliding sleeve, thus retaining a flue gas seal therealong with thermal expansion.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: January 19, 1988
    Assignee: Metal-Fab, Inc.
    Inventors: John D. Ream, William J. Blalock