Patents by Inventor Jei Luh

Jei Luh 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).

  • Multiple fixed-position film centerwinder and method for winding web material
    Patent number: 7017852
    Abstract: The invention is a centerwinder for receiving and winding web material sequentially on one of at least two fixed shafts. The two or more shafts are desirably positioned vertically to one another in a stationary structure and eliminate the need for a powered turret assembly. A lay-on roll assembly can be used that pivots in and out as well as up and down for serving the respective shaft locations. A cylinder linkage provides the same or constant force against the winding roll on either the upper or the lower shaft. Transfer rolls in desirable embodiments are automatically pivoted into the proper position for a fully automatic transfer or to assist the operator during a manual cut and transfer.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: March 28, 2006
    Assignee: Davis-Standard Corporation
    Inventors: Michael C. Perrigo, Jei Luh
  • Multiple fixed-position film centerwinder and method for winding web material
    Publication number: 20050040279
    Abstract: The invention is a centerwinder for receiving and winding web material sequentially on one of at least two fixed shafts. The two or more shafts are desirably positioned vertically to one another in a stationary structure and eliminate the need for a powered turret assembly. A lay-on roll assembly can be used that pivots in and out as well as up and down for serving the respective shaft locations. A cylinder linkage provides the same or constant force against the winding roll on either the upper or the lower shaft. Transfer rolls in desirable embodiments are automatically pivoted into the proper position for a fully automatic transfer or to assist the operator during a manual cut and transfer.
    Type: Application
    Filed: April 1, 2004
    Publication date: February 24, 2005
    Inventors: Michael Perrigo, Jei Luh
  • Multiple fixed-position film centerwinder and method for winding web material
    Publication number: 20020153447
    Abstract: The invention is a centerwinder for receiving and winding web material sequentially on one of at least two fixed shafts. The two or more shafts are desirably positioned vertically to one another in a stationary structure and eliminate the need for a powered turret assembly. A lay-on roll assembly can be used that pivots in and out as well as up and down for serving the respective shaft locations. A cylinder linkage provides the same or constant force against the winding roll on either the upper or the lower shaft. Transfer rolls in desirable embodiments are automatically pivoted into the proper position for a fully automatic transfer or to assist the operator during a manual cut and transfer.
    Type: Application
    Filed: April 18, 2002
    Publication date: October 24, 2002
    Inventors: Michael C. Perrigo, Jei Luh