Patents by Inventor Richard P. Elliott

Richard P. Elliott 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).

  • Coal gasification plant slag tapping process
    Patent number: 4331450
    Abstract: An automatic arrangement in which the intermittent tapping of liquid molten slag from the hearth of a slagging coal gasifier vessel (30) through a tap orifice (32) into a slag quench chamber (31) is selectively controlled by a system of timers (T1, T2, T3), the differential pressure between the gasifier vessel (30) and the quench chamber (31) being measured (22) and deviations from the expected measurements caused by malfunctions being used to override the timer system until the malfunctions have been corrected.
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: May 25, 1982
    Assignee: British Gas Corporation
    Inventor: Richard P. Elliott