Patents by Inventor Fred A. Herdrich

Fred A. Herdrich 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).

  • Machine for conditioning product in a sealed bag
    Patent number: 5284003
    Abstract: A machine for conditioning filled and sealed bags for testing, to assure that the bags are accurately tested without damaging the product contained in the bags, and for packaging the bags that have passed the test in cartons with the longitudinal axis of the bags arranged vertical.
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: February 8, 1994
    Assignee: Prototype Equipment Corporation
    Inventors: James A. Goodman, Fred A. Herdrich
  • Machine for testing pneumatically sealed bag
    Patent number: 5279099
    Abstract: A machine for conditioning filled and sealed bags for testing, to assure that the bags are accurately tested without damaging the product contained in the bags, and for packaging the bags that have passed the test in cartons with the longitudinal axis of the bags arranged vertical.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: January 18, 1994
    Assignee: Prototype Equipment Corporation
    Inventors: James A. Goodman, Fred A. Herdrich
  • Potato chip package vertical packaging machine
    Patent number: 5251422
    Abstract: A machine for conditioning filled and sealed bags for testing, to assure that the bags are accurately tested without damaging the product contained in the bags, and for packaging the bags that have passed the test in cartons with the longitudinal axis of the bags arranged vertical.
    Type: Grant
    Filed: March 26, 1992
    Date of Patent: October 12, 1993
    Assignee: Prototype Equipment Corporation
    Inventors: James A. Goodman, Fred A. Herdrich