Patents by Inventor Robert Herment

Robert Herment 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).

  • Modified pitch specially adapted to bind coal particles
    Patent number: 4921539
    Abstract: The invention concerns a modified pitch composition specially adapted to bind coal particles with the purpose of transforming it into briquettes; the pitch is modified by reaction with an unsaturated dicarboxylic acid or anhydride thereof, and at least on crosslinking agents selected from hydroxide of a Group I metal, and certain polyamines, polyalcohols and alcoholamines.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: May 1, 1990
    Assignee: Shell Oil Company
    Inventors: Jean-Pierre Harlin, Jean-Pierre Giorgetti, Bernard Ruquier, Robert Herment
  • Production of briquettes
    Patent number: 3966427
    Abstract: A process for producing briquettes from wet cakes or muds containing mineral ore, including coal particles, characterized in that a wet cake or a mud is mixed with a bituminous binder selected from the group consisting of powdered bitumen, molten bitumen and a bitumen emulsion, whereafter the resltant mixture is compressed into briquettes at a temperature which is at least equal to about the Ring and Ball temperature minus 40.degree.C of the bitumen present in the binder, after which optionally the briquettes are dried.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: June 29, 1976
    Assignee: Shell Oil Company
    Inventors: Robert Herment, Yves Lafage, Jean Claude Emo, Jean Marie Yurcek