1
Joel L Johnson, Ronald Cortigiano Sr: Method and apparatus for guiding and sealing split-flange zipper tape to bag making film. Illinois Tool Works, Ostrager Chong Flaherty & Broitman P C, January 17, 2006: US06986377 (42 worldwide citation)

A method and an apparatus for sealing a split-flange zipper tape in a center fold of a web of bag making film without sealing or tacking the two sides of the split zipper web together.


2
Joel L Johnson, Ronald Cortigiano Sr: Method and apparatus for guiding and sealing split-flange zipper tape to bag making film. Illinois Tool Works, Ostrager Chong Flaherty & Broitman P C, July 25, 2006: US07081176 (1 worldwide citation)

A method and an apparatus for sealing a split-flange zipper tape in a center fold of a web of bag making film without sealing or tacking the two sides of the split zipper web together.


3
Joel L Johnson, Ronald Cortigiano: Method and apparatus for guiding and sealing split-flange zipper tape to bag making film. Ostrager Chong & Flaherty, April 1, 2004: US20040060638-A1

A method and an apparatus for sealing a split-flange zipper tape in a center fold of a web of bag making film without sealing or tacking the two sides of the split zipper web together.


4
Joel L Johnson, Ronald Cortigiano: Method and apparatus for guiding and sealing split-flange zipper tape to bag making film. Dennis M Flaherty Esq, Ostrager Chong Flaherty & Broitman PC, June 1, 2006: US20060113022-A1

A method and an apparatus for sealing a split-flange zipper tape in a center fold of a web of bag making film without sealing or tacking the two sides of the split zipper web together.