Patents by Inventor Norman E. Holme

Norman E. Holme 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).

  • Cementitious composition and making concrete therefrom
    Patent number: 5114487
    Abstract: A cementitious composition comprises a ground sulfoaluminous clinker, a ground Portland cement clinker (preferably rapid hardening Portland cement clinker), calcium sulfate, aggregate (especially sand and a coarse aggregate such as granite) and metal (e.g. stainless steel) fibers. The composition may also comprise a plasticizer and agents for controlling setting and hardening. The reinforced concrete produced from the compositions is useful in offshore applications, e.g. as a coating for the weld areas between lengths of steel pipe to be laid under water.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: May 19, 1992
    Assignee: Blue Circle Industries PLC and ALH Systems Limited
    Inventors: Gavin C. Gartshore, Norman E. Holme