Patents by Inventor David Earl Ufford

David Earl Ufford 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).

  • Heating method and apparatus to accelerate flanged joint adhesive cure
    Patent number: 6118108
    Abstract: The invention relates to a method of assembling a pipe and a flanged pipe fitting. The pipe includes an end, an inner surface having an inner diameter, and an outer surface having an outer diameter. The fitting includes an inner surface defining a bore with a portion having an inner diameter larger than the pipe outer diameter. The fitting also includes a flange at least partially surrounding the bore.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: September 12, 2000
    Assignee: A. O. Smith Corporation
    Inventor: David Earl Ufford