Patents by Inventor Nils J. W. Juhlin

Nils J. W. Juhlin 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).

  • Coke briquettes
    Patent number: 4661119
    Abstract: A briquette, preferably intended for use as additional combustible in shaft furnaces for melting of mineral in mineral wool manufacture and comprising 30-75% of a combustible in the form of coal and/or coke, 8-35% of a hydraulic binder like cement and 15-35% of a filler in the form of a fine grain, oxidic, mineral component like sand, slag, stone powder, fly ash, lime stone powder, dolomite powder, silicon dioxide or a fibrous waste material from the mineral wool manufacture.
    Type: Grant
    Filed: October 10, 1985
    Date of Patent: April 28, 1987
    Assignee: Rockwool Aktiebolaget
    Inventors: D. Bertil Andersson, Nils J. W. Juhlin, Claes I. Gillenium, Olle Kjell-Berger, Owe R. Brinck