Patents by Inventor Curtis E. Imerman

Curtis E. Imerman 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).

  • Patent number: 4446976
    Abstract: A basic crane capable of lifting a predetermined load is equipped with an outrigger unit which, in one orientation, engages the ground to increase the lifting capacity of the crane to an intermediate level and, in a second orientation relative to the crane, is arranged to coact with members of heavy duty equipment which may be added to the basic crane to give it a heavy duty lifting capacity.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: May 8, 1984
    Assignee: FMC Corporation
    Inventors: Curtis E. Imerman, David S. Langerud, Brian H. Thomas