Patents by Inventor Serge Delessard

Serge Delessard 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).

  • Process for drying and/or preheating coal
    Patent number: 4338160
    Abstract: A plant for pre-heating by fluidizing and for milling coking coal in a treatment chamber is combined, by means of heat a exchanger interposed in a circuit for recirculating heat-conveying gas, with a plant for the dry quenching of hot coke in a quenching chamber. The flow, through the heat exchanger, of recycled quenching fumes of the coke is regulated in dependence on the rate at which the coal is introduced into the treatment chamber by a screw conveyor. An auxiliary heat combustion chamber permits precise control of the temperature in the treatment chamber.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: July 6, 1982
    Assignee: Charbonnages de France
    Inventors: Serge Delessard, Roger M. Puff