# US 5,702,339 A · Method for making a heavy duty bag having an easy opening spout > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,702,339 A - Document ID: US5702339A - Status: Granted - Kind: A - Application number: 08/790,719 - Filed: 1997-01-31 - Granted: 1997-12-30 - Earliest claimed: 1995-03-22 - Assignees: Bonar Packaging, Inc. - Inventors: Gregory B. Smiley - Web page: https://patentgrep.com/patent/US5702339A ## CPC - B65D 33/06: Handles {(forming part of the closing arrangement B65D33/16)} - B65D 75/5816: {for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion} - B31B 70/844: {Applying rigid valves, spouts, or filling tubes} - Y10S 383/906: Dispensing feature - 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 - B31B: MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B) - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract A plastic, heavy duty bag having an easy opening pouring spout, and a method and apparatus for forming a plastic, heavy duty bag having an easy opening pouring spout are disclosed. The bag includes a radially disposed perforation in the upper corner of the bag. Above a heat sealing strip, a slit is formed in the portion of the bag extending above the heat sealing strip, to aid in tearing through the heat seal strip to gain access to the perforation. ## Claims ### Claim 1 A method for making a plastic, heavy duty bag, adapted to be filled with a desired product, comprising the steps of: (a) forming a tubular shaped member of low density polyethylene plastic having a thickness of approximately 4 to 8 mils; (b) flattening the tubular shaped member to form a front wall, having first and second ends and first and second side edges, and a rear wall having first and second ends and first and second side edges; (c) joining the front and rear walls to each other adjacent their first ends by heat sealing together a portion of the front wall to the rear wall to provide an integral heat sealing strip disposed substantially parallel to, and spaced from, the first ends of the front and rear walls, and providing a skirt portion of each of the first ends of the front and rear walls extending above the heat sealing strip; (d) forming a perforation in the front and rear walls extending from the heat sealing strip to the second side edges, the perforation being substantially radially disposed from a location where the first ends and second side edges intersect; and (e) forming a slit in each of the skirt portions of the front and rear walls, the slits only extending from the first ends of the front and rear walls to the heat sealing strip, the slit being disposed substantially perpendicular to the heat sealing strip and in alignment with a portion of the perforation disposed adjacent the heat sealing strip, whereby upon pulling the skirt portions adjacent the slit, the heat sealing strip may be tom through, and further pulling separates the perforation to provide a pouring spout in the bag. ### Claim 2 (depends on 1) The method of claim 1, including the step of forming the perforation with a plurality of openings substantially uniformly spaced from each other. ### Claim 3 (depends on 2) The method of claim 2, including the step of forming the perforation with the distance between adjacent openings of approximately 5/32 of an inch. ### Claim 4 (depends on 3) The method of claim 3, including the step of forming the openings with a length dimension of approximately of an inch measured along the perforation. ### Claim 5 (depends on 1) The method of claim 1, including the step of fixedly securing a carrying handle to the first ends of the front and rear walls. ### Claim 6 (depends on 2) The method of claim 2, including the step of forming the openings with a plurality of slits, and disposing the slits with the distance between adjacent slits being approximately 5/32 of an inch. ### Claim 7 (depends on 2) The method of claim 2, including the step of forming the openings with a plurality of slits, and disposing the slits with the distance between adjacent slits being approximately 5/32 of an inch. ### Claim 8 A method for making a plastic, heavy duty bag, adapted to be filled with a desired product, comprising the steps of: (a) forming a tubular shaped member of low density polyethylene plastic having a thickness of approximately 4 to 8 mils; (b) flattening the tubular shaped member to form a front wall, having first and second ends and first and second side edges, and a rear wall having first and second ends and first and second side edges; (c) forming a perforation in the front and rear walls extending from a first location adjacent the first ends of the front and rear walls to the second side edges, the perforation being substantially radially disposed from a second location where the first ends and second side edges intersect; (d) forming a slit in the first ends of the front and rear walls only extending from the first location to the first ends of the front and rear walls, the slit disposed in alignment with a portion of the perforation disposed adjacent the first location; (e) joining the front and rear walls to each other adjacent their first ends by heat sealing together a portion of the front wall to the rear wall to provide an integral heat sealing strip disposed substantially parallel to, and spaced from, the first ends of the front and rear walls, and providing a skirt portion of each of the first ends of the front and rear walls extending above the heat sealing strip, the slits being disposed in the skirt portions, whereby upon pulling the skirt portions adjacent the slit, the heat sealing strip may be tom through, and further pulling separates the perforation to provide a pouring spout in the bag. ### Claim 9 (depends on 8) The method of claim 8, including the step of forming the perforation with a plurality of openings substantially uniformly spaced from each other. ### Claim 10 (depends on 9) The method of claim 9, including the step of forming the perforation with the distance between adjacent openings being approximately 5/32 of an inch. ### Claim 11 (depends on 10) The method of claim 10, including the step of forming the openings with a length dimension of approximately 3/32 of an inch measured along the perforation. ### Claim 12 (depends on 8) The method of claim 8, including the step of fixedly securing a carrying handle to the first ends of the front and rear walls. ### Claim 13 (depends on 9) The method of claim 9, including the step of forming the openings with a plurality of slits, and disposing the slits with the distance between adjacent slits being approximately 5/32 of an inch. ### Claim 14 (depends on 13) The method of claim 13, including the step of forming each slit with a length of approximately 3/32 of an inch measured along the perforation.