Nathan A Kolovich

6508969, Jan 21, 2003

Aug 10, 2000

09/636244

Nathan A. Kolovich - Rochester NY
Russell J. Talbo - Lyons NY
Joseph W. Eye - Orchard Park NY

Pactiv Corporation - Lake Forest IL

B29C 4514

264252, 264263, 264273, 264274, 264275, 24 305 R

A fastener arrangement includes a fastener, a slider, and an injection-molded end stop. The fastener includes first and second tracks. The first track includes a first profile, and the second track includes a second profile for interlocking with the first profile. The fastener extends between first and second ends. The slider is slidably mounted to the fastener for movement between the first and second ends. The injection-molded end stop is located at least one of the first and second ends. The end stop terminates the movement of the slider at the one of the first and second ends. The end stop includes interior plastic material disposed in an interior of the fastener between the first and second profiles. The one of the first and second ends includes a cut edge at an angle relative to an axis of the fastener extending between the first and second ends. The end stop may include exterior plastic material along an exterior of the fastener outside the first and second profiles and covering the cut edge.

6622353, Sep 23, 2003

Sep 23, 2002

10/252650

Alexander R. Provan - Canandaigua NY
Thomas L. Coomber - Palmyra NY
Toby R. Thomas - Victor NY
Nathan A. Kolovich - Rochester NY

Pactiv Corporation - Lake Forest IL

A44B 104

2458512, 24399, 24400, 245851, 383 64

A slider-operated fastener comprises first and second opposing tracks including respective first and second interlocking profiles and respective first and second fins extending downward from the respective first and second profiles. The first and second fins are sealed to each other by a plurality of spaced preseals. After generating each preseal, a notch is formed in the profiles and upper portions of the fins at the generated preseal. To install a slider onto the fastener, the slider is initially positioned within the respective notch and then threaded onto the fastener in response to relative movement of the slider and the fastener. Either before or after the steps of forming each preseal and respective notch and installing the respective slider, the fastener is attached to a moving web of plastic film. The fastener-carrying web is later folded and sealed to form individual plastic bags. The preseals are advantageous in that they allow the fastener to be controlled during such downstream operations as notch formation and slider installation and when the fastener is tensioned by various rollers in the bag making machine.

6662410, Dec 16, 2003

Nov 12, 2002

10/292177

Nathan A. Kolovich - Rochester NY
Russell J. Talbo - Lyons NY
Joseph W. Eye - Orchard Park NY

Pactiv Corporation - Lake Forest IL

A44B 1938

24399, 24387, 24433, 24436, 2458512, 383 63

A fastener arrangement includes a fastener, a slider, and an injection-molded end stop. The fastener includes first and second tracks. The first track includes a first profile, and the second track includes a second profile for interlocking with the first profile. The fastener extends between first and second ends. The slider is slidably mounted to the fastener for movement between the first and second ends. The injection-molded end stop is located at at least one of the first and second ends. The end stop terminates the movement of the slider at the one of the first and second ends. The end stop includes interior plastic material disposed in an interior of the fastener between the first and second profiles. The one of the first and second ends includes a cut edge at an angle relative to an axis of the fastener extending between the first and second ends. The end stop may include exterior plastic material along an exterior of the fastener outside the first and second profiles and covering the cut edge.

6686005, Feb 3, 2004

Oct 11, 2001

09/975613

Thomas A. White - Farmington NY
Nathan A. Kolovich - Rochester NY
Edwin Jackson-Kuofie - Parkville MO

Pactiv Corporation - Lake Forest IL

B65D 3316

428 352, 428 357, 383 64, 383 65, 383 97, 383 63, 24405, 24415, 24433, 24436, 2458512

An end termination for use with a reclosable polymeric bag comprises providing a mixture comprising from about 70 to about 95 wt. % of a polyolefin, from about 5 to about 25 wt. % hydrocarbon, from about 0. 01 to about 2 wt. % mold release agent, from about 0. 1 to about 1 wt. % primary antioxidant, and at least about 0. 06 wt. % secondary antioxidant.

6780146, Aug 24, 2004

Sep 17, 2002

10/245080

Toby R. Thomas - Victor NY
Nathan A. Kolovich - Rochester NY
Craig E. Cappel - Pittsford NY
Timothy W. Pistner - Fairport NY
Alexander R. Provan - Canandaigua NY

Pactiv Corporation - Lake Forest IL

B31B 190

493213, 493394, 493927, 53412, 531334, 373 64

Methods are provided for making slider-operated fasteners for use in reclosable plastic bags using at least a double index and dual unit operations. The methods involve forming two preseals, forming two notches within the preseals, applying two sliders into the previously formed notches, and applying two end stops proximate the previously applied sliders by having the various stations perform their respective functions, either simultaneously or at generally the same time, on different parts of the fastener spaced approximately at a double index. Also provided are methods of producing finished bags by applying the slider-operated fastener to a flat web of plastic film and conveying the web to a vertical or a horizontal form-fill-seal machine.

7200911, Apr 10, 2007

Aug 20, 2004

10/922357

Toby R. Thomas - Victor NY, US
Nathan A. Kolovich - Rochester NY, US
Craig E. Cappel - Pittsford NY, US
Timothy W. Pistner - Fairport NY, US
Alexander R. Provan - Canandaigua NY, US

Pactiv Corporation - Lake Forest IL

B21F 45/18

29408, 29409, 29410, 29766, 29 332, 383 64

Methods are provided for making slider-operated fasteners for use in reclosable plastic bags using at least a double index and dual unit operations. The methods involve forming two preseals, forming two notches within the preseals, applying two sliders into the previously formed notches, and applying two end stops proximate the previously applied sliders by having the various stations perform their respective functions, either simultaneously or at generally the same time, on different parts of the fastener spaced approximately at a double index. Also provided are methods of producing finished bags by applying the slider-operated fastener to a flat web of plastic film and conveying the web to a vertical or a horizontal form-fill-seal machine.

7228608, Jun 12, 2007

Aug 23, 2004

10/924163

Toby R. Thomas - Victor NY, US
Nathan A. Kolovich - Rochester NY, US
Craig E. Cappel - Pittsford NY, US
Timothy W. Pistner - Fairport NY, US
Alexander R. Provan - Canandaigua NY, US

Pactiv Corporation - Lake Forest IL

B21F 45/15
B31B 1/90

29408, 493214, 493927, 383 64

Methods are provided for making slider-operated fasteners for use in reclosable plastic bags using at least a double index and dual unit operations. The methods involve forming two preseals, forming two notches within the preseals, applying two sliders into the previously formed notches, and applying two end stops proximate the previously applied sliders by having the various stations perform their respective functions, either simultaneously or at generally the same time, on different parts of the fastener spaced approximately at a double index. Also provided are methods of producing finished bags by applying the slider-operated fastener to a flat web of plastic film and conveying the web to a vertical or a horizontal form-fill-seal machine.

7497623, Mar 3, 2009

Feb 10, 2005

11/055574

Toby R. Thomas - Pleasant Prairie WI, US
Steven P. Long - Chatham IL, US
William P. Belias - Pittsford NY, US
Nathan A. Kolovich - Round Lake IL, US

Pactiv Corporation - Lake Forest IL

B65D 33/16
A44B 19/00

383 63, 2458512

Packages with active agents are described. Generally, the disclosed packages have a pair of opposing body panels joined together along a pair of opposing sides and a bottom bridging the sides so as to define a mouth opposite the bottom, a reclosable fastener extending along the mouth, and an active agent. The reclosable fastener includes a pair of polymeric tracks, in which each of the tracks includes a mating element and a fin portion. The mating elements are releasably engageable to each other, and each of the fin portions extends downwards from the respective mating element towards the bottom of the reclosable package. The active agent is associated with at least one of the fin portions for communication with the interior of the reclosable package.