Hermetic seal for foil-lined FIBC (bulk bag)

Patent metadata

Field	Value
Publication number	US-10968036-B2
Application number	US-201916268985-A
Country	US
Kind code	B2
Filing date	Feb 6, 2019
Priority date	Jan 17, 2017
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

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.

First claim

What is claimed is:

1. 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, wherein the collar includes a web on the bottom end that extends outward from the external wall;
an elastic band positioned around the collar between the lip of the collar and the web of the collar that compresses the at least one of the inner layer or the outer layer toward 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 at least one of the inner layer or the outer layer, and the lip of the collar together with a bottom portion of the lid being in contact with the inner layer, wherein the lid comprises a sampling port molded into and level with a top side of the lid, and a removable 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.

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

3. The bag of claim 1 , wherein the lid further comprises a seal adhered to a top side of the lid and the removable cap.

4. The bag of claim 1 , wherein the sampling port includes a threaded connection and the removable cap is a threaded cap.

5. The bag of claim 1 , wherein the sampling port is a plug port and the removable cap is a plug.

6. The bag of claim 5 , wherein the plug comprises a ring directly attached to a top surface of the plug.

7. The bag of claim 1 , wherein the top side of the lid has a first diameter and the sampling port has a second diameter that is less than the first diameter.

8. 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 an interior of the inner layer is in contact with the material 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 on the bottom end that is perpendicular and extends 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 one or both of the inner layer and the outer layer is folded over the lip of the collar and onto the external wall;
an elastic band that is configured to be positioned around the collar between the lip of the collar and the web of the collar to compress at least 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 lid when attached to the collar applies a force to press the lid, one or both of the inner layer and the outer layer, and the lip of the collar together, and a bottom portion of the lid is in contact with the inner layer, and further wherein the lid comprises a sampling port molded into and level with the top side of the lid, the sampling port having a second diameter that is less than the first diameter, and a removable 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.

Assignees

• Lincoln Global Inc

Inventors

• Weissbrod Paul A

Classifications

• B65D88/1668 Primary

  closures for top or bottom openings · CPC title

• B65D88/1681

  Flexible, e.g. loops, or reinforcements therefor · CPC title

• B65D88/1618

  double-walled or with linings · CPC title

• B65D2588/165

  FIBC on a pallet base · CPC title

• B65D90/022

  Laminated structures (B65D90/029 takes precedence) · CPC title