# US 2019/0168958 A1 · Hermetic seal for foil-lined fibc (bulk bag)

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- Number: US 2019/0168958 A1
- Document ID: US20190168958A1
- Status: Published application
- Kind: A1
- Application number: 16/268,985
- Filed: 2019-02-06
- Published: 2019-06-06
- Earliest claimed: 2017-01-17
- Assignees: Lincoln Global, Inc.
- Applicants: Lincoln Global, Inc.
- Inventors: PAUL A. WEISSBROD
- Web page: https://patentgrep.com/patent/US20190168958A1

## CPC

- B65D 88/1668: {closures for top or bottom openings}
- B65D 88/1618: {double-walled or with linings}
- B65D 88/1681: {Flexible, e.g. loops, or reinforcements therefor}
- B65D 90/022: {Laminated structures (B65D90/029 takes precedence)}
- B65D 2588/165: FIBC on a pallet base
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES

## Abstract

The invention described herein generally pertains to a system and method related to a hermetic seal assembly used with a bag to provide a hermetic seal for the bag that can be opened and closed while maintaining the hermetic seal for the bag and materials stored therein. The hermetic seal assembly can include a lid and a collar, wherein the collar can be releasably affixed to the bag or integrated into an opening of the bag. The lid can include a sampling port and a corresponding removeable cap.

## Claims

### Claim 1

A seal assembly system for a bulk bag, comprising:
a bag that stores a material, the bag includes an opening;
the bag includes an inner layer and an outer layer, wherein the inner layer is a foil laminate and the outer layer is a ribbon-woven structure made of polypropylene;
a collar having a top end and a bottom end opposite thereto, an internal wall that defines a through passage that extends between the top end and the bottom end;
the collar having:
a lip on the top end;
a web on the bottom end; and
the web of the collar is integrated to the inner layer and the outer layer at the opening; and
a lid that is configured to releaseably attach to the lip of the collar to provide a hermetic seal at the opening, wherein the lid comprises a sampling port and a removeable cap configured to:
seal the sampling port when attached to the sampling port, and
provide access to the material when removed from the sampling port, while the lid remains attached to the lip of the collar.

### Claim 2 (depends on 1)

The seal assembly system of claim 1, wherein the lid further comprises a seal adhered to a top side of the lid and the removeable cap.

### Claim 3 (depends on 1)

The seal assembly system of claim 1, wherein the sampling port includes a threaded connection and the removeable cap is a threaded cap.

### Claim 4 (depends on 1)

The seal assembly system of claim 1, wherein the sampling port is a plug port and the removeable cap is a plug.

### Claim 5 (depends on 4)

The seal assembly system of claim 4, wherein the plug comprises a ring attached to a top surface of the plug.

### Claim 6 (depends on 1)

The seal assembly system of claim 1, wherein the removeable cap is recessed below a top side of the lid when attached to the sampling port.

### Claim 7 (depends on 1)

The seal assembly system of claim 1, a portion of the web is integrated between one or more layers of the bag.

### Claim 8 (depends on 1)

The seal assembly system of claim 1, a portion of the web is integrated to the inner layer of the bag.

### Claim 9 (depends on 1)

The seal assembly system of claim 1, a portion of the web is coupled to the outer layer, and the outer layer is coupled to the inner layer.

### Claim 10 (depends on 1)

The seal assembly system of claim 1, a portion of the web is coupled to the inner layer of the bag.

### Claim 11 (depends on 1)

The seal assembly system of claim 1, further comprising a heat weld that secures a portion of the collar to a portion of the bag.

### Claim 12

A bag configured to hold a volume of a material, comprising:
an opening on the top side of the bag;
an inner layer that is configured to provide an airtight enclosure for the material, wherein the airtight enclosure can be accessed via the opening;
an outer layer that is positioned around the inner layer, wherein the outer layer provides structural support and integrity with a ribbon weave;
the opening includes a neck formed by at least one of the inner layer or the outer layer;
a collar having a top end and a bottom end opposite thereto, an internal wall that defines a through passage that extends between the top end and the bottom end, an external wall opposite the internal wall, and the collar having a thickness and a diameter for the through passage;
the collar positioned over the neck and with at least one of the inner layer or the outer layer folded over a lip of the collar, wherein at least one of the inner layer or the outer layer are folded onto the external wall of the collar; and
a lid that is releaseably coupled to the collar, the lid when attached to the collar applies a force to press the lid, the outer layer, the inner layer, and the lip of the collar together, wherein the lid comprises a sampling port and a removeable cap configured to:
seal the sampling port when attached to the sampling port, and
provide access to the material when removed from the sampling port, while the lid remains coupled to the collar.

### Claim 13 (depends on 12)

The bag of claim 12, wherein the lid further comprises a seal adhered to a top side of the lid and the removeable cap.

### Claim 14 (depends on 12)

The bag of claim 12, wherein the sampling port includes a threaded connection and the removeable cap is a threaded cap.

### Claim 15 (depends on 12)

The bag of claim 12, wherein the sampling port is a plug port and the removeable cap is a plug.

### Claim 16 (depends on 15)

The bag of claim 15, wherein the plug comprises a ring attached to a top surface of the plug.

### Claim 17 (depends on 12)

The bag of claim 12, wherein a top side of the lid has a first diameter and the sampling port has a second diameter that is less than the first diameter.

### Claim 18 (depends on 12)

The bag of claim 12, further comprising a compression member that compresses one of the inner layer or the outer layer to the external wall of the collar to maintain connectivity upon detachment of the lid from the collar.

### Claim 19 (depends on 12)

The bag of claim 12, wherein the lip of the collar is in contact with an exterior of the outer layer and a bottom portion of the lid is in contact with an interior of the inner layer when the lid is coupled to the lip of the collar.

### Claim 20

A seal assembly system for a bulk bag, comprising:
a bag that stores a material having a first end and a second end opposite thereto, the bag includes an opening at the first end;
the bag includes an inner layer and an outer layer, wherein the inner layer is a foil laminate and the outer layer is a ribbon-woven structure made of polypropylene;
a collar having a top end and a bottom end opposite thereto, an internal wall that defines a through passage that extends between the top end and the bottom end;
the collar further includes an external wall;
the collar having:
a lip on the top end;
a web that is perpendicular and outward from the external wall; and
a support rib in between the lip and the web;
the collar is affixed around a portion of the bag such that the outer layer is in contact with the internal wall and the external wall;
a compression member that is configured to be positioned around the collar to compress the outer layer and the inner layer toward the external wall of the collar; and
a lid having a top side with a first diameter, the lid is configured to releaseably attach to the lip of the collar to provide a hermetic seal at the opening, wherein the lip is in contact with the outer layer, the lid is in contact with the inner layer, and the lid couples to the lip with the outer layer and the inner layer in between, the lid comprises a sampling port having a second diameter that is less than the first diameter, and a removeable cap configured to:
seal the sampling port when attached to the sampling port, and
provide access to the material when removed from the sampling port, while the lid remains attached to the lip of the collar.