Patents by Inventor Pieter Fennema

Pieter Fennema 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).

  • Cushioning conversion machine and method
    Patent number: 6758801
    Abstract: A cushioning conversion machine (20) including a conversion assembly (30) which converts a continuous sheet of multi-ply stock material (22) into a three dimensional cushioning product (32) and a stock supply assembly (550) which supplies the multi-ply stock material (22) to the conversion assembly (30). The conversion assembly (30) includes a forming assembly (52) which inwardly turns lateral portions of the stock material (22) as the stock material (22) travels therethrough in a downstream direction. The stock supply assembly (550) includes a separating device (574) and/or constant-entry device (580) designed to minimize tearing due to excessive tension in the lateral regions of the stock material (22). Additionally or alternatively, the forming assembly (52) includes a shaping member (590) having protrusions in its turning perimeter and/or holding surface to modify the shape of the cushioning product.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: July 6, 2004
    Assignee: Ranpak Corp.
    Inventors: Joseph J. Harding, Richard O. Ratzel, Thomas E. Manley, Theo Corthout, Roger P. M. Rinkens, Pieter Fennema
  • Cushioning conversion machine and method
    Publication number: 20030195102
    Abstract: A cushioning conversion machine (20) including a conversion assembly (30) which converts a continuous sheet of multi-ply stock material (22) into a three dimensional cushioning product (32) and a stock supply assembly (550) which supplies the multi-ply stock material (22) to the conversion assembly (30). The conversion assembly (30) includes a forming assembly (52) which inwardly turns lateral portions of the stock material (22) as the stock material (22) travels therethrough in a downstream direction. The stock supply assembly (550) includes a separating device (574) and/or constant-entry device (580) designed to minimize tearing due to excessive tension in the lateral regions of the stock material (22). Additionally or alternatively, the forming assembly (52) includes a shaping member (590) having protrusions in its turning perimeter and/or holding surface to modify the shape of the cushioning product.
    Type: Application
    Filed: June 4, 2003
    Publication date: October 16, 2003
    Inventors: Joseph J. Harding, Richard O. Ratzel, Thomas E. Manley, Theo Corthout, Roger P.M. Rinkens, Pieter Fennema
  • Cushioning conversion machine and method
    Patent number: 6610001
    Abstract: A cushioning conversion machine (20) including a conversion assembly (30) which converts a continuous sheet of multi-ply stock material (22) into a three dimensional cushioning product (32) and a stock supply assembly (550) which supplies the multi-ply stock material (22) to the conversion assembly (30). The conversion assembly (30) includes a forming assembly (52) which inwardly turns lateral portions of the stock material (22) as the stock material (22) travels therethrough in a downstream direction. The stock supply assembly (550) includes a separating device (574) and/or constant-entry device (580) designed to minimize tearing due to excessive tension in the lateral regions of the stock material (22). Additionally or alternatively, the forming assembly (52) includes a shaping member (590) having protrusions in its turning perimeter and/or holding surface to modify the shape of the cushioning product.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: August 26, 2003
    Assignee: Ranpak Corp.
    Inventors: Joseph J. Harding, Richard O. Ratzel, Thomas E. Manley, Theo Corthout, Roger P. M. Rinkens, Pieter Fennema
  • Cushioning conversion machine and method
    Patent number: 6200251
    Abstract: A cushioning conversion machine (20) including a conversion assembly (30) which converts a continuous sheet of multi-ply stock material (22) into a three dimensional cushioning product (32) and a stock supply assembly (550) which supplies the multi-ply stock material (22) to the conversion assembly (30). The conversion assembly (30) includes a forming assembly (52) which inwardly turns lateral portions of the stock material (22) as the stock material (22) travels therethrough in a downstream direction. The stock supply assembly (550) includes a separating device (574) and/or constant-entry device (580) designed to minimize tearing due to excessive tension in the lateral regions of the stock material (22). Additionally or alternatively, the forming assembly (52) includes a shaping member (590) having protrusions in its turning perimeter and/or holding surface to modify the shape of the cushioning product.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: March 13, 2001
    Assignee: Ranpak Corp.
    Inventors: Joseph J. Harding, Richard O. Ratzel, Thomas E. Manley, Theo Corthout, Roger P. M. Rinkens, Pieter Fennema