Patents by Inventor Frederick A. Riddiford

Frederick A. Riddiford 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).

  • Ignition system
    Patent number: 4519453
    Abstract: A burner having a pulsating mode of operation has a combustion chamber for the periodic burning of successive separate charges of combustible fuel continuously supplied from an inlet system. Upstream of the combustion chamber is an ignition chamber having roughened internal walls, an ignition source and an inlet system for fuel and oxygen. During use of the burner, periodic ignition of successive separate charges of combustible gas in the ignition chamber produces fast moving combustion or detonation waves capable of igniting the successive separate charges of combustible fuel in the combustion chamber.
    Type: Grant
    Filed: July 28, 1982
    Date of Patent: May 28, 1985
    Assignee: The British Petroleum Company p.l.c.
    Inventor: Frederick A. Riddiford