Granted Patent B1

US 6,874,664 · App. 10/163,203 · Granted Apr 5, 2005

Abstract

Claims (50)

1. A push-pull dispenser, comprising:

a base portion having a base portion top wall and a cylindrical base portion skirt depending from an outer peripheral edge of said top wall, said skirt having a lower edge defining an opening, and a dispensing orifice centrally disposed in said base portion top wall defining a fluid path between said base portion and an upwardly extending neck;

a neck extending upwardly from said base portion top wall and being integral therewith, said neck being hollow and further defining said fluid path in communication with said base portion and an upwardly extending stem;

said upwardly extending stem being in fluid communication with said neck and said dispensing orifice;

a flow diverter centrally disposed in said stem;

at least one stem lug extending circumferentially about an upper outer portion of said stem and extending downwardly therefrom;

said at least one stem lug having at least one lower horizontal surface;

a slidable dispensing cap having a top wall, a cylindrical sidewall depending from a peripheral edge of said top wall, and at least one folding finger hingeably connected to a lower peripheral edge of said sidewall, said folding finger having an upper horizontal surface which abuts said lower horizontal surface of said at least one stem lug;

said top wall of said slidable dispensing cap having a centrally disposed cap-dispensing aperture and an annular valve finger which sealably engages said flow diverter.

2. The push-pull dispenser of claim 1 , said base portion further comprising a helical thread along an inner surface of said base portion skirt.

3. The push-pull dispenser of claim 1 , said base portion top wall further comprising a seal depending therefrom.

4. The push-pull dispenser of claim 1 , said at least one stem lug having an upper tapered surface.

5. The push-pull dispenser of claim 1 , said folding finger having a lower tapered surface operably engaging an upper tapered surface of said at least one stem lug.

6. The push-pull dispenser of claim 1 , further comprising a frangibly connected tamper indicating ring depending from a lower edge of said base portion.

7. A push-pull dispenser, comprising:

a base portion and an upwardly extending stem from a base portion top wall;

at least one stem lug depending from an upper exterior portion of said stem;

a slidable dispensing cap being slidably disposed over said stem having at least one folding finger connected thereto;

said at least one folding finger having an upper horizontal surface operably engaging said at least one stem lug.

8. The push-pull dispenser of claim 7 further comprising a helical thread disposed on a skirt depending from a peripheral edge of said base portion top wall.

9. The push-pull dispenser of claim 7 further comprising a seal depending from said base portion top wall.

10. The push-pull dispenser of claim 7 further comprising a neck extending between said base portion top wall and said stem, said neck having a hollow portion defining a fluid path through a dispensing orifice and said stem.

11. The push-pull dispenser of claim 10 further comprising a neck bead defining an annular groove around said neck.

12. The push-pull dispenser of claim 7 further comprising a flow diverter centrally disposed within said stem.

13. The push-pull dispenser of claim 7 , said stem lug including an upper tapered surface and a lower horizontal surface.

14. The push-pull dispenser of claim 7 further comprising an overcap being substantially cup-shaped and disposed over said neck.

15. The push-pull dispenser of claim 7 , said folding fingers including a lower tapered surface and an upper horizontal surface.

16. The push-pull dispenser of claim 7 , said slidable dispensing cap further comprising a centrally disposed cap-dispensing aperture defined by an annular valve finger, said annular valve finger engaging a flow diverter centrally disposed in said stem.

17. A push-pull dispenser, comprising:

a base portion having a base portion top wall, a skirt depending from a peripheral edge of said base portion top wall, said skirt including a helical thread circumferentially extending along an inner surface of said skirt;

said base portion top wall having a dispensing orifice centrally disposed therein;

an upwardly extending stem defining a fluid communication path;

at least one stem lug formed on an upper portion of said at least one stem, said stem lug having a horizontal lower surface;

a flow diverter centrally disposed in said stem;

a slidable dispensing cap having a top wall, a skirt depending from a peripheral edge of said top wall and having a centrally disposed cap dispensing aperture;

at least one folding finger depending from an inner surface of said slidable dispensing cap;

said slidable dispensing cap also having a finger rib circumferentially extending around an upper portion of said slidable dispensing cap; and,

an annular valve finger depending from said cap top wall and operably engaging said flow diverter.

18. The push-pull dispenser of claim 17 , further comprising a neck bead disposed about a neck and defining a groove.

19. The push-pull dispenser of claim 17 , further comprising an overcap having an overcap bead and disposed over said slidable dispensing cap and stem.

20. A push-pull dispenser, comprising:

a base portion having an upwardly extending stem;

a slidable dispensing cap slidably disposed over said stem;

said stem having a stem lug;

said slidable dispensing cap having at least one folding finger hingeably connected to a lower edge thereof, said at least one folding finger having an upper horizontal surface for engaging said stem lug;

said stem having a centrally disposed flow diverter axially aligned with and operably engaging an annular valve finger defining a cap dispensing aperture.

21. A push-pull dispenser, comprising:

a base portion and an upwardly extending stem;

said stem having at least one stem lug on an outer peripheral surface, said at least one stem lug having a lower contacting surface;

a slidable dispensing cap axially aligned with and disposed over said stem, said slidable dispensing cap having at least one folding finger along a lower peripheral edge, said at least one finger having a contacting surface engaging said contacting surface of said stem lug.

Assignments (31)