Patents by Inventor Charles Shultz

Charles Shultz 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).

  • Method and apparatus for inserting sliders during automated manufacture of reclosable bags
    Patent number: 6863645
    Abstract: Methods and apparatus for low-cost manufacture of reclosable packages having slider-operated zippers. One method of manufacture comprising the following steps: (a) joining film material to a back side of a first flangeless zipper strip having a first closure profile on its front side; (b) joining film material to a back side of a second flangeless zipper strip having a second closure profile on its front side, the first and second closure profiles of the first and second zipper strips being interlockable to form a string zipper assembly; and (c) loading a slider comprising a plow onto an open section of the string zipper assembly with the plow being inserted between the first and second flangeless zipper strips. Respective portions of the first and second portions of film are respectively disposed between the slider and the string zipper assembly when the slider is loaded.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: March 8, 2005
    Assignee: Illinois Tool Works Inc.
    Inventors: Gregory H. Crunkleton, Basil C. Linton, Eric J. Fenzl, Charles Shultz, Ronald Cortigiano, Sr., Robert E. Hogan
  • Method and apparatus for inserting sliders during automated manufacture of reclosable bags
    Publication number: 20040229740
    Abstract: Methods and apparatus for low-cost manufacture of reclosable packages having slider-operated zippers. One method of manufacture comprising the following steps: (a) joining film material to a back side of a first flangeless zipper strip having a first closure profile on its front side; (b) joining film material to a back side of a second flangeless zipper strip having a second closure profile on its front side, the first and second closure profiles of the first and second zipper strips being interlockable to form a string zipper assembly; and (c) loading a slider comprising a plow onto an open section of the string zipper assembly with the plow being inserted between the first and second flangeless zipper strips. Respective portions of the first and second portions of film are respectively disposed between the slider and the string zipper assembly when the slider is loaded.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 18, 2004
    Inventors: Gregory H. Crunkleton, Basil C. Linton, Eric J. Fenzl, Charles Shultz, Ronald Cortigiano, Robert E. Hogan