Patents by Inventor John D. Salt

John D. Salt 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: 5671727
    Abstract: A gas fireplace has a set of artificial logs. The logs rest on top of a burner. The burner is formed from top and bottom metal sheets. The sheets are sealed together around a channel matched generally to the prospective position of the logs. A gas orifice feeds gas into the channel, while gas ports in the top sheet release the gas. The gas ports are positioned to match the final position of the logs. The channel is formed by creating a depression in the bottom sheet using a press with a general purpose stamping die moving in the pattern of the channel, or a single hit special purpose die, or a rolling die moving in the pattern of the channel, or by the bottom sheet being moved across a stationary rolling or beading die in the pattern of the channel. Secondary air holes feed air through the burner adjacent to the channel and the gas ports.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: September 30, 1997
    Assignee: Hunter Energy Technologies Inc.
    Inventors: David G. Squires, John D. Salt, Andrew C. G. Wilkes