Patents by Inventor Jonh E. Prim

Jonh E. Prim 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).

  • Signature feeder and method including a variable speed separator disk
    Patent number: 6193229
    Abstract: A signature feeder for delivering stacked signatures to a conveyer or gatherer includes a variable speed separator disk for separating signatures from the stacked signatures. The separator disk mechanically couples with a servomotor. The separator disk has a blade with a leading edge and a trailing edge. The servomotor accelerates the separator disk through the stacked signatures to separate signatures from the stacked signatures. After a signature separates from the stacked signatures, the servomotor slows the separator disk.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: February 27, 2001
    Inventors: David F. Hall, Jonh E. Prim