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| Number | Title | Issue Date |
| 6139482 | Bulk bag or liner and method of making it A method of making flexible and collapsible bulk bags or liners for bulk bags or containers from individual flat panels of material, or tubes of material folded flat, is disclosed. The bags or liners have one or more sidewalls interconnected by at least a... | 10/31/2000 |
| 6123654 | Bag liner loader An apparatus for loading a liner into a container made of a flexible material has an elongate tube into which the liner is inserted with its free end extending slightly beyond the end of the tube and over and onto which the container is received whereby t... | 09/26/2000 |
| 6090029 | Spout construction for bulk box liquid liner An improved bulk bag or bulk box liner and spout fitment construction for the liner discharge and/or fill openings. The liner is of liquid impervious thermoplastic multiple-ply sheet material, and the spout fitment is a rigid thermoplastic spout of either... | 07/18/2000 |
| 5944251 | Form fit container liner A form fit liner for a container has a bottom wall and at least one sidewall formed of at least one layer of a flexible material, at least one heat seal joining two adjacent portions of material of the sidewall and extending from the bottom wall towards t... | 08/31/1999 |
| 5918984 | Collapsible bag with handle A plurality of collapsible bags are integrally formed in a tubular blank of a flexible material with a perforated portion disposed between adjacent bags to facilitate separating them. When formed, adjacent bags are connected in end-to-end relationship and... | 07/06/1999 |
| 5865541 | Bulk container liner and method A collapsible liner for a bulk container made of a flexible material and having seamless top and bottom walls is provided. The liners are formed from a tubular blank folded to form two gusset panels received inwardly of two overlying flat panels. The blan... | 02/02/1999 |
| 5851072 | Spout construction for bulk box liquid liner An improved bulk bag or bulk box liner and spout fitment construction for the liner discharge and/or fill openings. The liner is of liquid impervious thermoplastic multiple-ply sheet material, and the spout fitment is a rigid thermoplastic spout of either... | 12/22/1998 |
| 5836363 | Tank liner A collapsible container liner for use within a bulk container having a substantially rigid top, bottom and side walls and a filler opening in the top wall. The liner is a collapsible bag of a flexible material with top, bottom and sides which correspond t... | 11/17/1998 |
| 5810478 | Bulk bag with lift straps and exterior liner For a bulk bag with lift straps, an exterior liner with an opening adjacent each lift strap constructed to receive the lift strap therethrough so that the bag can be lifted by its lift straps with the liner in place. To prevent leakage and to protect the ... | 09/22/1998 |
| 5794670 | Tank liner and method of installation A collapsible container liner for use within a bulk container having a substantially rigid top, bottom and side walls and a filler opening in the top wall. The liner is a collapsible bag of a flexible material with top, bottom and sides which correspond t... | 08/18/1998 |
| 5758973 | Bulk bag with reinforced lift straps A collapsible bulk bag with lift straps is formed from a tubular blank of material severed from an elongate web of material and is provided with reinforced upper corners integral with the blank. The blank is severed from the web to provide a central porti... | 06/02/1998 |
| 5701650 | Tools for inserting and removing liner outlet spouts Tools for inserting a spout of a flexible bag liner into fluid-tight sealing and anchoring engagement with a discharge outlet of a container and for removing the spout from the outlet. The spout has at least two seal rings, preferably each having a pair o... | 12/30/1997 |
| 5690253 | Large bulk liquid squeeze bag A flexible and collapsible bulk bag having an upright orientation in use with top and bottom end access openings to the exterior of the bag through which a flexible and collapsible liner is received in the bag, the liner also having top and bottom access ... | 11/25/1997 |
| 5664887 | Bulk bag with restrainer A collapsible bulk bag which when filled with material has a generally cubical configuration with a pair of end walls and rectangular sidewalls extending between them with all of the walls being of a flexible material. Bowing and bulging of the sidewalls ... | 09/09/1997 |
| 5607237 | Bulk bag with lift straps A generally cubical collapsible bag with six generally rectangular walls of a flexible woven fabric material. Lift straps attached adjacent two opposed top edges of the bag, are connected by a pair of substantially inextensible linking members. Preferably... | 03/04/1997 |
| 5421804 | Bulk bag with restrainer A collapsible bulk bag which when filled with material has a generally cubical configuration with a pair of end walls and rectangular sidewalls extending between them with all of the walls being of a flexible material. Bowing and bulging of the sidewalls ... | 06/06/1995 |
| 5385268 | Liner outlet seal and tool A sealing spout and tools for inserting a spout of a flexible bag liner into fluid-tight sealing and anchoring engagement with a discharge outlet of a container and for removing the spout from the outlet. The spout has at least two seal rings, each having... | 01/31/1995 |
| 5358335 | Bulk bag with conical top A reinforced collapsible bag and method of making it from a tubular blank of a flexible material which when filled has two pair of opposed sidewall panels and an inturned shoulder bordering the top of the sidewalls for supporting another bag stacked verti... | 10/25/1994 |
| 5328268 | Bulk bag with restrainer A collapsible bulk bag which when filled with material has a generally cubical configuration with a pair of end walls and rectangular sidewalls extending between them with all of the walls being of a flexible material. Bowing and bulging of the sidewalls ... | 07/12/1994 |
| 5127893 | Method of making scrapless collapsible bag with circumferentially spaced reinforced strips A reinforced collapsible bag and method of making it from blanks of a flexible woven material which are cut from an elongate web substantially without wasting any material between adjacent blanks with pairs of reinforced strips extending along the side ed... | 07/07/1992 |
| 5104236 | Scrapless collapsible bag with circumferentially spaced reinforced strips A reinforced collapsible bag and method of making it from blanks of a flexible woven material which are cut from an elongate web substantially without wasting any material between adjacent blanks with pairs of reinforced strips extending along the side ed... | 04/14/1992 |
| 5087235 | Method for making a collapsible bag with spout A generally cubical collapsible bag with six generally rectangular walls of a flexible plastic material. A spout with an enclosed end is attached to the bag by a continuous heat seal. The spout communicates with the interior of the bag through an opening ... | 02/11/1992 |
| 4817824 | Collapsible bulk container A collapsible and reusable container for liquid and granular materials which has a cage and a generally cubical bag of a flexible material which collapses when empty. The cage has a bottom which supports the filled bag and upstanding side walls surroundin... | 04/04/1989 |
| 4798572 | Collapsible bag and method A collapsible bag and method of making it from blanks of a flexible material which are cut from an elongate web substantially without wasting any material between adjacent blanks. Each blank has a circumferential continuous central portion and four substa... | 01/17/1989 |
| 4790029 | Collapsible bag with square ends formed by triangular portions A collapsible bag and method of making it from blanks of a flexible material which are cut from an elongate web substantially without wasting any material between adjacent blanks. Each blank has a circumferentially continuous central portion and four subs... | 12/06/1988 |
| 4781473 | Large bag with lift straps A large bulk container is provided with a lift strap formed from a strip of flexible material for lifting the bulk container. The bulk container has connecting side panels and either a closed or open top and preferably a generally rectangular shape when f... | 11/01/1988 |
| 4781472 | Large bag with liner A large bulk bag with a complimentary liner therein, both of a flexible material, and constructed and arranged so that when empty they can be folded into a generally flat and compact configuration. At least two spaced apart connectors between the bag and ... | 11/01/1988 |
| 4781475 | Reinforced bulk bag A bulk bag having a sidewall reinforced by a safety band. The safety band either encircles the sidewall or is disposed inside the bag. The safety band is located adjacent the bottom of the bag and preferably has a height equal to at least one-fifth of the... | 11/01/1988 |
| 4596040 | Large bulk bag A large bulk bag formed from a tubular blank of woven fabric having inwardly folded gusset panels along opposite side edges. While in the flattened condition, the blank is sewn along predetermined stitch lines and severed at predetermined portions so that... | 06/17/1986 |
| 4518106 | Collapsible bag and discharge valve therefor A large bulk bag is provided with a flexible tubular spout at its lower end. A valved casing is detachably suspended from the lower end of the bag beneath and in alignment with the bag's spout. The bag spout, when opened, is designed to extend into the va... | 05/21/1985 |
| 4481006 | Bag making method and machine A length of woven plastic fabric in tubular form is advanced from a source of supply while telescoped over a separator plate which maintains the two plies of the tubular stock in separated relation. A heated knife blade aligned vertically with the downstr... | 11/06/1984 |
| 4279183 | Rotary heat cutter for plastic webs The rotary heat cutter comprises a heating element adapted to be rotated into engagement with a taut section of plastic web to sever the web transversely while the web is traveling in a straight path. Means are provided for constraining the heating elemen... | 07/21/1981 |
| 4233888 | Method of making a collapsible drum-type container A collapsible drum-type container is formed by scoring lines on a generally rectangular blank of fiberboard or the like so that the blank can be initially folded along one score line into two flat overlying panels. The longitudinal free edges of the panel... | 11/18/1980 |
