Patents by Inventor Dwight E. Griffith

Dwight E. Griffith 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).

  • Patent number: 4702224
    Abstract: The barbecue pit is a masonry structure including a chimney portion and a fire box portion laterally adjacent to and intercommunicating with the chimney portion. The fire box portion is topped by a hood frame which defines the length and width of an access opening into it. Refractory brick line side walls of the fire box portion and terminate to form an upper horizontal ledge upon which a removable metal drip trough structure is supported. The trough structure has a rectangular drip plate oriented to have a predetermined slope. A tail extension section of the drip plate projects well out of the fire box portion into the chimney portion, and separates part of the chimney space into an upper and lower space for dividing air currents into one current for supporting combustion and another for enhancing cooking flavors.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: October 27, 1987
    Inventor: Dwight E. Griffith