IP Library Granted Patent US 7,540,662
Granted Patent B2
US 7,540,662 · App. 10/405,052 · Granted Jun 2, 2009

Flexible package including a docking station formed from a plurality of closely spaced slits

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Quick Facts
Patent No.
US 7,540,662
App. No.
10/405,052
Granted
Jun 2, 2009
Kind
B2
Abstract

Apparatus and methods for forming, filling, and sealing a flexible recloseable container. Both vertical and horizontal methods for placing product within the container are disclosed. The invention includes guiding a web of film which has interlocking fastener strips sealed to the web. A slider for locking and unlocking the fastener strips is placed in the correct orientation, spread apart at a pair of inner feet, and inserted over the fastener strips. The slider is positioned to close a substantial portion of the strips, and then an end stop, docking station, and corner seal are formed against a sealing plate. The slider is then repositioned, and a tamper evident seal may be placed over the fastener strip. Apparatus and methods for placing a product in a flexible recloseable container, and also for manufacturing an empty, flexible recloseable container. One method includes providing a pair of interlockable fastener strips, a web of flexible film, and a plurality of sliders, placing the sliders on the pair of interlockable fastener strips, subsequently attaching the interlockable fastener strips with attached sliders to the web of flexible film, and either placing a product within the web or providing the empty container to the consumer.

Claims (14)

1. A flexible package comprising:

(a) a package surrounding wall having a first side edge, a second side edge, a top edge extending between the first and second side edges, and a mouth between the first and second side edges; said mouth providing access to a package interior;

(b) a recloseable zipper along said mouth for selective opening and closing of said mouth; said zipper including first and second closure profiles;

(i) said first profile having a first upper flange;

(c) a slider device operably mounted on said zipper for selectively opening and closing said zipper;

(d) said first upper flange defining a docking station adjacent to said first side edge for accommodating said slider device;

(i) said docking station including a slit arrangement comprising:

a plurality of closely spaced first slits defined in the upper flange of the first closure profile, and

(ii) said plurality of closely spaced first slits extending from said top edge.

2. The flexible package of claim 1 , wherein each of said plurality of closely spaced first slits is spaced approximately 0.1 inches from another of said first slits along said first upper flange.

3. The flexible package of claim 1 , wherein:

said slider device has a length; and

said plurality of closely spaced first slits is defined within a range of about 0.25 to 0.5 of said length of said slider device.

4. The flexible package of claim 1 , wherein said first closure profile and said second closure profile include an end stop proximate said slit arrangement.

Assignments (1)
RELEASE OF SECURITY INTEREST Recorded Jan 15, 2010
From: WILMINGTON TRUST COMPANY
To: PLIANT CORPORATION
Reel/Frame 023792/0577 →