Patents by Inventor James P. Gerhart

James P. Gerhart 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).

  • Core-spacer-core mandrel loader
    Patent number: 4201505
    Abstract: A core-spacer-core mandrel loader in which pairs of cores and spacers are automatically loaded upon a mandrel. A transition nose cone is attached to the mandrel to facilitate proper placement of the cores and spacers upon the mandrel.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: May 6, 1980
    Inventors: James P. Gerhart, deceased, Merle A. Gerhart, executrix
  • Transition attachment for a core-spacer-core mandrel loader
    Patent number: 4128155
    Abstract: A core-spacer-core mandrel loader in which pairs of cores and spacers are automatically loaded upon a mandrel. A transition nose cone is attached to the mandrel to facilitate proper placement of the cores and spacers upon the mandrel.
    Type: Grant
    Filed: April 29, 1977
    Date of Patent: December 5, 1978
    Inventor: James P. Gerhart