Patents by Inventor Michael V. Longwell

Michael V. Longwell 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: 5596918
    Abstract: A slitting assembly for producing a plurality of "interrupted cut" slits in a large sheet of sport card photos includes a horizontal support track carrying a plurality of individual upper slitting assemblies each including a freely rotatable upper hub, an upper blade concentrically attached to the upper hub, a resilient band circumferentially disposed on the upper hub to frictionally engage the top surface of the sheet being slit, and an upper blade biasing element to resiliently urge an edge of the upper blade against an edge of the corresponding lower blade. The upper blades are precisely parallel to the lower blades to avoid interference with notches provided in the lower blades to interrupt the slits being made. The locations of the notches are selected to compensate for slippage resulting from the frictional engagement.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: January 28, 1997
    Assignee: The Upper Deck Company
    Inventors: Michael V. Longwell, Richard J. Lee
  • Patent number: 5546838
    Abstract: A slitting machine including a first slitting stage for producing a plurality of interrupted cut slits in an advancing sheet having a leading edge and a trailing edge includes a drive pulley, a driven pulley, and a belt engaging the drive pulley and the driven pulley to provide a power path and a return path between the drive pulley and the driven pulley. The slitting machine also includes a mechanism translating rotation of the driven pulley to drive an upper slitting assembly and notched blades of a lower slitting assembly in synchronization with the advancing of the sheet by a sheet feeder.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: August 20, 1996
    Assignee: The Upper Deck Company
    Inventor: Michael V. Longwell