Patents by Inventor Bent Melchior Karlsen Holme

Bent Melchior Karlsen 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).

  • Supporting ring for use in the casting of concrete pipes
    Patent number: 4047693
    Abstract: A supporting ring for casting machines for concrete pipes for use in moulding the socket end of the pipe and as a base for the green pipe during the removal of the casting mould and the initial hardening of the concrete, said ring consisting of a hollow annular body of a closed, preferably substantially rectangular cross-section.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: September 13, 1977
    Assignee: Pedershaab Maskinfabrik A/S
    Inventor: Bent Melchior Karlsen Holme