Claims
- 1. A method for producing a disposable flexible bag for use in containing and dispensing a liquid and including a spout having an opening through which the bag is to be filled and emptied, and said bag also including a liquid passage member inside of said bag having at least one elongated liquid channel in liquid flow communication with said spout opening as said bag progressively collapses against said liquid passage member, said method comprising:
- a) providing a pair of flexible bag walls;
- b) providing a spout in one of said bag walls having an opening therethrough and a longitudinal axis substantially perpendicular to said bag wall;
- c) positioning said liquid passage member having said liquid channel inside of said bag walls prior to forming said bag walls into said bag;
- d) positioning said liquid passage member inside of said bag walls such that when said bag walls are formed into said bag having no liquid contained therein, said liquid channel of said liquid passage member will be in liquid flow communication with said spout opening and disposed substantially perpendicular to said longitudinal axis of said spout; and
- e) forming said bag walls into said bag with said spout being connected through one of said bag walls.
- 2. The method as recited in claim 1 wherein said liquid passage member comprises a flat, elongated, flexible member having said liquid channel extending along its length.
- 3. The method as recited in claim 2 including positioning said flexible member between said pair of bag walls and directly underneath said spout, prior to forming said bag walls into said bag.
- 4. The method as recited in claim 3 further comprising securing said liquid passage member inside of said bag with said elongated channel in liquid flow communication with said opening in said spout.
- 5. The method as recited in claim 4 wherein said bag is formed by heat sealing and wherein said securing said liquid passage member comprises heat sealing said member in place.
- 6. The method as recited in claim 5 including heat sealing said member to at least one of said bag walls.
- 7. The method as recited in claim 5 wherein said bag is formed by heat sealing said bag walls along their respective peripheries, and wherein heat sealing said flexible member includes heat sealing at least one end of said flexible member between said bag walls at their peripheries simultaneously with said heat sealing of said bag walls along their peripheries.
- 8. The method as recited in claim 7 wherein said heat sealing said flexible member further includes heat sealing both ends of said flexible member between said bag walls at the periphery of said bag.
- 9. The method as recited in claim 1 wherein said liquid passage member is a flat, flexible member.
- 10. The method as recited in claim 9 wherein said member is narrow and elongated.
- 11. The method as recited in claim 11 wherein said liquid passage member comprises at least one rib that defines said liquid channel and that prevents said bag walls from blocking liquid flow through said liquid channel when said bag walls have collapsed against said liquid passage member.
- 12. A method for producing a disposable, flexible bag for use in containing and dispensing a liquid, comprising:
- a) providing a pair of rectangular bag walls;
- b) heat sealing a spout having a longitudinal axis and a spout opening therethrough to one of said bag walls with the longitudinal axis thereof substantially perpendicular to said bag wall;
- c) positioning a flexible, flat, elongated liquid passage member between said pair of bag walls and adjacent to said spout prior to sealing said bag walls together to form said bag, said liquid passage member having at least one liquid channel therealong in liquid flow communication with said spout opening as said bag empties and progressively collapses against said liquid passage member;
- d) heat sealing said bag walls together to form said bag with said liquid passage member positioned in-between said walls; and
- e) securing said liquid passage member in said bag with said channel substantially perpendicular to said longitudinal axis of said spout when said bag is in an unfilled condition.
- 13. The method as recited in claim 12 wherein said securing said liquid passage member comprises heat sealing said liquid passage member in place simultaneously with heat sealing at least a portion of said walls together to form said bag.
- 14. The method as recited in claim 12 wherein said heat sealing said liquid passage member comprises heat sealing said liquid passage member to at least one of said walls.
- 15. The method as recited in claim 12 wherein said positioning said liquid passage member further comprises disposing said liquid passage member across said spout opening when said bag is in said unfilled condition.
- 16. The method as recited in claim 12 wherein said liquid passage member further comprises at least one rib, whereby said rib prevents said bag walls from blocking said liquid channel when said bag wall collapses against said liquid passage member.
- 17. The method as recited in claim 12 wherein said heat sealing said bag walls comprises heat sealing said bag walls along their respective peripheries.
- 18. The method as recited in claim 17 wherein said heat sealing said flexible member in place inside of said bag further comprises heat sealing at least one end of said flexible member between said bag walls at their peripheries simultaneously with said heat sealing of said bag walls along their peripheries.
- 19. The method as recited in claims 18 wherein said heat sealing said flexible member further includes heat sealing both ends of said flexible member between said bag walls at the periphery of said bag.
- 20. A disposable, flexible bag for use in containing and dispensing a liquid comprising:
- a) a pair of rectangular bag walls heat sealed together at their peripheries to form a flat rectangular unfilled bag;
- b) a spout having a longitudinal axis and a spout opening therethrough and heat sealed to one of said bag walls with said longitudinal axis substantially perpendicular to said bag wall;
- c) a flexible, flat, elongated liquid passage member positioned inside of said flat bag and having at least one liquid channel formed along at least a portion thereof; and
- d) said liquid passage member being secured in said bag and being located in liquid flow communication with said spout opening and with said liquid passage member being disposed substantially perpendicular to said longitudinal axis of said spout when said bag is in an unfilled condition.
- 21. The article of claim 20, wherein said elongated liquid passage member includes at least one pair of spaced-apart ribs defining said liquid channel.
- 22. The article of claim 21, wherein said ribs are parallel to each other and extend in a straight line between the ends of said member and across said spout opening when said bag is in an empty, pre-filled condition.
- 23. The article of claim 21, wherein said ribs are integral with the bag wall opposite said spout opening.
- 24. The article of claim 20, wherein at least one end of said liquid passage member is heat sealed in the bag.
- 25. The article of claim 24, wherein said at least one end of said liquid passage member is heat sealed to a periphery of said bag.
- 26. The article of claim 25 wherein both ends of said liquid passage member are heat sealed between said pair of bag walls at the periphery of said bag.
Parent Case Info
This application is a continuation of U.S. patent application Ser. No. 07/119,034 filed on Nov. 10, 1987, now issued as U.S. Pat. No. 5,749,493, which was a continuation of U.S. patent application Ser. No. 06/542,322, filed on Oct. 17, 1983 (now abandoned).
US Referenced Citations (45)
Foreign Referenced Citations (5)
Number |
Date |
Country |
600684 |
Oct 1956 |
CAX |
732761 |
Jun 1955 |
GBX |
756093 |
Aug 1956 |
GBX |
1 473 524 |
May 1977 |
GBX |
WO 8301605 |
May 1983 |
WOX |
Continuations (2)
|
Number |
Date |
Country |
Parent |
119034 |
Nov 1987 |
|
Parent |
542322 |
Oct 1983 |
|