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
Ronald Cortigiano Sr: Method and apparatus for sealing zippers to bag making film. Illinois Tool Works, Ostrager Chong Flaherty & Broitman P C, November 2, 2004: US06810642 (19 worldwide citation)

An automated reclosable packaging manufacturing equipment for applying zipper tape to bag making film, especially as part of a form-fill-seal process, and a method of joining a zipper flange of a zipper assembly to bag making film without “seal-through” of the zipper flanges. The method comprises th ...


3
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. Illinois Tool Works, Ostrager Chong Flaherty & Broitman P C, March 8, 2005: US06863645 (10 worldwide citation)

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 fi ...


4
Ronald Cortigiano Sr: Method and apparatus for sealing zippers to bag making film. Illinois Tool Works, Ostrager Chong Flaherty & Broitman P C, May 24, 2005: US06895725 (10 worldwide citation)

An automated reclosable packaging manufacturing equipment for applying zipper tape to bag making film, especially as part of a form-fill-seal process, and a method of joining a zipper flange of a zipper assembly to bag making film without “seal-through” of the zipper flanges. The method comprises th ...


5
Ronald Cortigiano Sr: Method and apparatus for feeding slider-zipper assemblies. Illinois Tool Works, Ostrager Chong & Flaherty, May 11, 2004: US06732898 (9 worldwide citation)

A method and an apparatus for automatically feeding slider-zipper assemblies to a station where the slider-zipper assemblies can be attached to bag material such as thermoplastic film. The apparatus includes a slider guide having a channel running the length thereof. The channel has a cross section ...


6
Ronald Cortigiano Sr: Retractable zipper guide for slider insertion apparatus. Illinois Tool Works, Ostrager Chong Flaherty & Broitman P C, September 28, 2004: US06796015 (9 worldwide citation)

A zipper guide for use in a slider insertion machine in which the zipper guide can be easily loaded with zipper tape without disassembly of the zipper guide. The slider insertion apparatus comprises: an assembly for inserting sliders onto a zipper tape; first and second shafts that are fixed relativ ...


7
Ronald Cortigiano Sr: Method and apparatus for positioning sliders for automated slider insertion. Illinois Tool Works, Ostrager Chong Flaherty & Broitman P C, December 13, 2005: US06973704 (8 worldwide citation)

An apparatus for inserting a slider onto a flexible zipper tape, comprising: a zipper tape guide that supports a section of zipper tape in a slider insertion zone and guides advancement of the zipper tape along a line; a mechanism for displacing a slider from a pre-insertion position to an inserted ...


8
Ronald Cortigiano Sr: Method and apparatus for feeding slider-zipper tape to application station. Illinois Tool Works, Ostrager Chong Flaherty & Broitman P C, June 7, 2005: US06902091 (7 worldwide citation)

A method and an apparatus for automatically feeding slider-zipper assemblies to a station where the slider-zipper assemblies can be attached to bag material, such as thermoplastic film. The apparatus includes a slider guide having a channel running the length thereof. The channel has a cross section ...


9
John H Schneider, Basil Carl Linton, Eric Joseph Fenzl, Ronald Cortigiano Sr: Method for applying a narrow web zipper transverse to the film direction. Illinois Tool Works, Pitney Hardin Kipp & Szuch, December 2, 2003: US06656297 (7 worldwide citation)

The apparatus and method uses grooved rollers and a grooved guide plate to position zipper segments on a web. The web is subsequently formed into a cylinder in a form fill and seal apparatus and seal bar assemblies form the bottom transverse seal, the web is indexed and the cylinder is filled, and t ...


10
Ronald Cortigiano Sr: Method and apparatus for feeding slider-zipper tape to application station. Illinois Tool Works, Ostrager Chong Flaherty & Broitman P C, May 20, 2008: US07374075 (4 worldwide citation)

A method and an apparatus for automatically feeding slider-zipper assemblies to a station where the slider-zipper assemblies can be attached to bag material, such as thermoplastic film. The apparatus includes a slider guide having a channel running the length thereof. The channel has a cross section ...