Patents by Inventor Carl . Robertus

Carl . Robertus 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 and system for production of a warm foam mix asphalt composition
    Patent number: 6846354
    Abstract: The invention describes a process for preparing a warm mix asphalt composition by mixing an aggregate grain material with a soft binder, and adding a hard binder to the mixed aggregate grain material. The hard binder is foamed in a foaming process before it is introduced to the mixed grained aggregate material. A system for preparing the warm mix asphalt composition comprising a drying drum for heating and drying the aggregate component, a mixing mill for mixing the asphalt components and a mix storage silo, where the system also includes foam production facilities for foaming the hard binder before introduction to the mixing mill, is also disclosed.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: January 25, 2005
    Assignee: Kolo Veidekke A.S.
    Inventors: Olle R. Larsen, Carl . Robertus
  • PROCESS AND SYSTEM FOR PRODUCTION OF A WARM FOAM MIX ASPHALT COMPOSITION
    Publication number: 20040244646
    Abstract: The invention describes a process for preparing a warm mix asphalt composition by mixing an aggregate grain material with a soft binder, and adding a hard binder to the mixed aggregate grain material. The hard binder is foamed in a foaming process before it is introduced to the mixed grained aggregate material. A system for preparing the warm mix asphalt composition comprising a drying drum for heating and drying the aggregate component, a mixing mill for mixing the asphalt components and a mix storage silo, where the system also includes foam production facilities for foaming the hard binder before introduction to the mixing mill, is also disclosed.
    Type: Application
    Filed: December 1, 2003
    Publication date: December 9, 2004
    Applicant: KOLO VEIDEKKE A.S.
    Inventors: Olle R. Larsen, Carl Robertus