Patents by Inventor Schwob Yvan

Schwob Yvan 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 converting ligneous matter of vegetable origin by torrefaction, and product obtained thereby
    Patent number: 4553978
    Abstract: The present invention relates to a process for converting ligneous matter of vegetable origin by torrefaction, and to the product obtained. Wood or any other ligneous matter is subjected in a neutral atmosphere to a treatment of torrefaction at a temperature of between 200.degree. and 280.degree. C., and preferably between 240.degree. and 260.degree. C. for a duration of 30 mins. to 5 hours. The product of the invention is not fermentable, it has a specific mass close to 0.25 kg/dm.sup.3, a calorific power of at least about 5000 kcal/kg, a content of fixed carbon of 35 to 40% and can be broken up by hand; it may be used as fuel in boilers and in gas generators.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: November 19, 1985
    Assignee: Association pour la Recherche et le Developpement des Methodes et Processus Industriels
    Inventor: Schwob Yvan