Patents by Inventor Roger Degrave

Roger Degrave 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 by means of which moulded coke can be obtained from non-cokable coals
    Patent number: 4197160
    Abstract: Process for the preparation of a moulded coke according to which agglomerates are heated in a non-oxidizing atmosphere, this process being characterized in that the agglomerates are prepared by compression from a paste containing:from 60 to 85% by weight of non-cokable coals,from 10 to 30% by weight of agglutinating coalshaving a swelling index greater than 2, andfrom 5 to 13% by weight of binder,which paste, when heated at 6.degree. C. per minute in the ARNU dilatometer gives a contraction of between 3 and 15%, preferably between 5 and 10% and a swelling of zero or near 0, and in that the agglomerates are heated in a non-oxidizing atmosphere from a temperature of about 100.degree. C. to a temperature of at least about 700.degree. C., with a rate of heating of between 7 and 14.degree. C. per minute.
    Type: Grant
    Filed: March 21, 1978
    Date of Patent: April 8, 1980
    Assignee: Houilleres du Bassin du Nord et, Due Pas-de-Calais
    Inventors: Roger Degrave, Maurice Marchasson