Claims
- 1. A container including a pressure generating expandable bag for dispensing fluid contained therein which comprises:
- a one-piece lower portion formed of a pressure-resistant fluid-impermeable synthetic plastic material, said lower portion having a bottom closed end, and side walls extending upwardly from said closed end and terminating to form a substantially fully open end;
- expandable bag means including pressure generating means therein for dispensing fluid from said container, said expandable bag being adapted to be inserted into the open end of said lower portion of said container without any substantial crushing thereof;
- a one-piece upper portion formed of a pressure-resistant fluid-impermeable synthetic plastic material, said upper portion having a top end, side walls extending downwardly from said top end and terminating to form a substantially fully open end sized for mating with said open end of said lower portion and a dispensing valve receiving means integrally molded in said top end and including guarding means extending downwardly from said top for preventing the expandable bag from blocking the release of fluid from said container;
- sealing means for joining said lower portion and said upper portion to form a single fluid-impermeable chamber with said guarding means extending into said chamber;
- dispensing valve means for releasing fluid from said chamber disposed in said dispensing valve receiving means and protected from interference with said expandable bag by said guarding means; and
- closure means for retaining said valve means in said dispensing valve receiving means and for providing communication with the fluid to be dispensed, said closure means including cap means having a cylindrical ridge for centering said dispensing valve means and being secured to a lower edge of said guard means, said guard means having openings therein to permit the fluid to pass from said chamber to said valve means, said guard means preventing the expandable bag from blocking said openings.
- 2. A container in accordance with claim 1 which further includes rib means integrally formed along the interior side wall of said lower portion for preventing said fluid from becoming trapped within said chamber by said expandable bag means as said bag mean expands.
- 3. A container in accordance with claim 2 which further includes rib means integrally formed along the interior sidewall of said top portion of said container for preventing said fluid from becoming trapped within said chamber.
- 4. A container in accordance with claim 1 wherein said lower portion is welded to said upper portion forming a seal capable of sustaining a fluid pressure of at least twenty-five pounds per square inch without any substantial amount of fluid leakage.
- 5. A container in accordance with claim 1 wherein said lower portion has a rounded closed end and said container further includes:
- base cup means into which said rounded closed end of said lower portion is disposed, for supporting said lower portion in an upright position.
- 6. A container in accordance with claim 1 wherein said dispensing valve receiving means comprises an upwardly extending generally cylindrical housing adapted to conform to the body of said valve means, said valve means having an upwardly extending valve stem, said cylindrical housing having an aperture in the upper end thereof to facilitate passing of the valve stem therethrough.
- 7. A container in accordance with claim 6 which further includes resilient means disposed between said closure means and said valve means for urging said valve means into a sealing relation with an upper end of said cylindrical housing.
- 8. A container in accordance with claim 7 which further includes frictional holding means securing said guard means and said cap means.
- 9. A container in accordance with claim 7 wherein said closure means further comprises
- a plurality of coupling members perpendicular to the surface of said cap means and positioned around the periphery of said cap means, said coupling members having a groove on the inside portion thereof,
- a rib extending around the outer surface of said guard means, said groove of the coupling members engaging with said rib for mounting the cap means to said guard means.
- 10. A container in accordance with claim 7 wherein said closure means further comprises a plurality of gripping members positioned on the inside of a cylindrical wall of said cap means, said gripping members frictionally engaging the outer surface of said guard means.
- 11. A container in accordance with claim 10 wherein said gripping members are metal.
- 12. A top dispensing member for use with fluid dispensing containers having an expandable bag means therein for exerting pressure on fluid in the container to be dispensed which comprises:
- unitary one-piece molded member formed of a pressure resistant fluid-impermeable synthetic plastic material having a top end, side walls extending downwardly from said top end and terminating to form a substantially fully open end sized for mating with an open end of a lower portion of the container and a dispensing valve receiving receptacle means formed in said top end and including depending guard means extending downwardly from said top end into said container for preventing the expandable bag from blocking the release of fluid from said container;
- dispensing valve means for releasing fluid from the container, disposed in said receptacle;
- closure means for retaining said valve means in said receptacle means and including cap means having a cylindrical ridge for centering said dispensing valve means and being secured to a lower edge of said guard means, said guard means having openings therein to permit the fluid to pass from the container to said valve means, at least one of said guarding mens and said closure means including a surface which said expandable bag means engages upon expansion to restrain the expandable bag means from substantially interfering with said valve means and the dispensing of fluid therefrom; and
- resilient means disposed between said closure means and said valve means for urging said valve means into a sealing relation with said receptacle means.
- 13. A top dispensing member in accordance with claim 12 wherein said receptacle means comprises an upwardly extending generally cylindrical housing, the interior of which is adapted to conform to the body of said valve means, said valve means having an upwardly depending valve stem, said cylindrical housing having an aperture in the upper end thereof to facilitate passing of said valve stem therethrough.
- 14. A top dispensing member in accordance with claim 11 which further includes frictional holding means securing said cap means and said guard means.
- 15. A container in accordance with claim 12 wherein said closure means further comprises
- a plurality of coupling members perpendicular to the surface of said cap means and positioned around the periphery of said cap means, said coupling members having a groove on the inside portion thereof,
- a rib extending around the outer surface of said guard means, said groove of the coupling members engaging with said rib for mounting the cap means to said guard means.
- 16. A container in accordance with claim 12 wherein said closure means further comprises a plurality of gripping members positioned on the inside of a cylindrical wall of said cap means, said gripping members frictionally engaging the outer surface of said guard means.
- 17. A container in accordance with claim 12 wherein said gripping members are metal.
- 18. A container including a pressure generating expandable bag for dispensing fluid container therein which comprises:
- a one-piece lower portion formed of a pressure-resistant fluid-impermeable synthetic plastic material, said lower portion having a bottom closed end, and side walls extending upwardly from said closed end and terminating to form a substantially fully open end;
- expandable bag means including pressure generating means therein for dispensing fluid from said container, said expandable bag being adapted to be inserted into the open end of said lower portion of said container without any substantial crushing thereof;
- a one-piece upper portion formed of a pressure-resistant fluid-impermeable synthetic plastic material, said upper portion having a top end, side walls extending downwardly from said top end and terminating to form a substantially fully open end sized for mating with said open end of said lower portion, said upper and lower portions being shaped so as to be nestable, and a dispensing valve receiving means integrally molded in said top end and including guarding means extending downwardly from said top for preventing the expandable bag from blocking the release of fluid from said container;
- sealing means for joining said lower portion and said upper portion to form a single fluid-impermeable chamber with said guarding means extending into said chamber;
- dispensing valve means for releasing fluid from said chamber disposed in said dispensing valve receiving means and protected from interference with said expandable bag by said guarding means; and
- closure means for retaining said valve means in said dispensing valve receiving means and for providing communication with the fluid to be dispensed, said closure means including cap means secured to a lower edge of said guard means, said guard means having openings therein to permit the fluid to pass from said chamber to said valve means, said guard means preventing the expandable bag from blocking said openings;
- said closure means comprising a plurality of coupling members perpendicular to the surface of said cap means and positioned around the periphery of said cap means, said coupling members having a groove on the inside portion thereof; and
- a rib extending around the outer surface of said guard means, said groove of the coupling members engaging with said rib for mounting the cap means to said guard means.
- 19. A container in accordance with claim 18 wherein said closure means further comprises a plurality of gripping members positioned on the inside of a cylindrical wall of said cap means, said gripping members frictionally engaging the outer surface of said guard means.
- 20. A container in accordance with claim 19 wherein said gripping members are metal.
- 21. A top dispensing member for use with fluid dispensing containers having an expandable bag means therein for exerting pressure on fluid in the container to be dispensed which comprises:
- unitary one-piece molded member formed of a pressure resistant fluid-impermeable synthetic plastic material having a top end, side walls extending downwardly from said top end and terminating to form a substantially fully open end sized for mating with an open end of a lower portion of the container, said top end and said lower portion having a nestable shape and a dispensing valve receiving receptacle means formed in said top end and including depending guard means extending downwardly from said top end into said container for preventing the expandable bag from blocking the release of fluid from said container;
- dispensing valve means for releasing fluid from the container, disposed in said receptacle;
- closure means for retaining said valve means in said receptacle means and including cap means having a cyclindrical ridge for centering said dispensing valve means and being secured to a lower edge of said guard means, said guard means having openings therein to permit the fluid to pass from the container to said valve means, at least one of said guarding mens and said closure means including a surface which said expandable bag means engages upon expansion to restrain the expandable bag means from substantially interfering with said valve means and the dispensing of fluid therefrom; and
- resilient means disposed between said closure means and said valve means for urging said valve means into a sealing relation with said receptacle means.
- 22. A container in accordance with claim 21 wherein said closure means further comprises
- a plurality of coupling members perpendicular to the surface of said cap means and positioned around the periphery of said cap means, said coupling members having a groove on the inside portion thereof,
- a rib extending around the outer surface of said guard means, said groove of the coupling members engaging with said rib for mounting the cap means to said guard means.
- 23. A container in accordance with claim 21 wherein said closure means further comprises a plurality of gripping members positioned on the inside of a cylindrical wall of said cap means, said gripping members frictionally engaging the outer surface of said guard means.
- 24. A container in accordance with claim 21 wherein said gripping members are metal.
Parent Case Info
This is a continuation to application Ser. No. 578,536 filed Feb. 9, 1984, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3168222 |
Wanderer |
Feb 1965 |
|
4162030 |
Capra et al. |
Jul 1979 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
578536 |
Feb 1984 |
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