Package having a plug seal closure

Patent metadata

Field	Value
Publication number	US-10532847-B2
Application number	US-201414505950-A
Country	US
Kind code	B2
Filing date	Oct 3, 2014
Priority date	Oct 4, 2013
Publication date	Jan 14, 2020
Grant date	Jan 14, 2020

Abstract

A package including: a container; and a plug seal closure operatively engaged with an open end of the container; wherein the container has; a closed end opposing the open end; a container wall extending longitudinally between the closed end and the open end about a longitudinal axis; an end seam extending at least partially across the closed end; and a longitudinal overlapping seam extending from the end seam, a portion of the overlapping seam extending longitudinally along the container wall between the closed end and the open end; wherein the open end is narrower than at least a portion of the container away from the open end of the container; and wherein the closed end and the container wall consist of a one-piece thermoplastic substrate.

First claim

What is claimed is:

1. A package comprising:
a container having an open end; and
a plug seal closure operatively engaged with said open end of said container;
wherein said container comprises;
a closed end opposing said open end;
a container wall extending longitudinally between said closed end and said open end about a longitudinal axis;
an end seam extending at least partially across said closed end; and
a longitudinal overlapping seam extending from said end seam, a portion of said overlapping seam extending longitudinally along said container wall between said closed end and said open end;
wherein said open end is narrower than at least a portion of said container away from said open end of said container; and
wherein said closed end and said container wall consist of a one-piece thermoplastic substrate; and
wherein said container has height extending between said open end and said closed end and said container wall has a thickness away from said overlapping seam, wherein at mid-height said overlapping seam along said container wall has an overlap magnitude of more than 1.5 times said thickness of said container wall as measured at a distance from said overlapping seam equal to said overlap magnitude.

2. The package of claim 1 , wherein said open end is a calibrated neck.

3. The package of claim 2 , wherein said calibrated neck has an inside diameter spanning said open end.

4. The package of claim 3 , wherein said inside diameter has a tolerance within plus or minus 2% of said inside diameter.

5. The package of claim 3 , wherein said inside diameter has a tolerance within plus or minus 1.2% of said inside diameter.

6. The package of claim 3 , wherein said inside diameter has a tolerance within plus or minus 1% of said inside diameter.

7. The package according to claim 1 , wherein said closed end is sized and dimensioned so that said container is free standing on said closed end.

8. The package according to claim 1 , wherein said thermoplastic substrate comprises a composition selected from the group consisting of polyethylene terephthalate, polystyrene, polypropylene, polyethylene, polyvinyl chloride, nylon, ethyl vinyl alcohol, and mixtures thereof.

9. The package according to claim 1 , wherein said overlapping seam at mid-height is thicker than any other portion of said container wall at mid-height.

10. The package according to claim 1 , wherein said open end is threaded.

11. The package according to claim 10 , wherein said open end is threaded on an outer surface thereof.

12. The package according to claim 10 , wherein said open end is threaded on an inner surface thereof.

13. The package according to claim 1 , wherein said plug seal closure is operatively engaged with a snap bead, wherein said snap bead is proximal said open end.

14. The package according to claim 1 , wherein said neck portion comprises two partially longitudinally extending flashing lines on opposite sides of said neck portion.

15. A package comprising:
a container having an open end; and
a plug seal closure operatively engaged with said open end of said container;
wherein said container comprises;
a closed end opposing said open end;
a container wall extending longitudinally between said closed end and said open end about a longitudinal axis;
an end seam extending at least partially across said closed end; and
a longitudinal overlapping seam extending from said end seam, a portion of said overlapping seam extending longitudinally along said container wall between said closed end and said open end, wherein said overlapping seam has an overlap magnitude that varies as a function of distance from said closed end and the overlap magnitude is at a minimum proximal said open end;
wherein said open end is narrower than at least a portion of said container away from said open end of said container;
wherein said closed end and said container wall consist of a one-piece thermoplastic substrate; and
wherein said open end is a calibrated neck, said calibrated neck has an inside diameter spanning said open end, and said inside diameter has a tolerance within plus or minus 2% of said inside diameter; and
wherein said container has a height extending between said open end and said closed end and said container wall has a thickness away from said overlapping seam, wherein at mid-height said overlapping seam along said container wall has an overlap magnitude of more than 1.5 times said thickness of said container wall as measured at a distance from said overlapping seam equal to said overlap magnitude.

16. A method of making the container according to claim 1 comprising the steps of:
a. forming a planar web into a loose conduit having an overlapping portion, said loose conduit positioned about a blowing cane;
b. bonding said overlapping portion of said loose conduit to form an intermediate tube having an intermediate tube open area;
c. advancing said intermediate tube over said blowing cane and a calibration mandrel attached to said blowing cane;
d. closing a blow mold to partially enclose said intermediate tube and conform at least a portion of said intermediate tube to at least a portion of said calibration mandrel to form a calibrated neck having a calibrated neck open area, wherein said calibrated neck open area is less than said intermediate tube open area;
e. blow molding said intermediate tube to form said container wherein at mid-height the overlapping seam along said container wall has said overlap magnitude of more than 1.5 times a thickness of said container wall as measured at a distance from said overlapping seam equal to said overlap magnitude.

17. The package according to claim 15 , wherein said neck portion comprises two partially longitudinally extending flashing lines on opposite sides of said neck portion.

Assignees

• Procter & Gamble

Inventors

• Etesse Patrick Jean-Francois

Classifications

• B29C66/1122

  Single lap to lap joints, i.e. overlap joints (B29C66/45, B29C66/472, B29C66/52272 take precedence) · CPC title

• B65D1/02 Primary

  Bottles or similar containers with necks or like restricted apertures, designed for pouring contents (thermally-insulated containers B65D81/38, A47J41/00; {feeding-bottles A61J9/00}) · CPC title

• B29C66/851

  Bag or container making machines · CPC title

• B29K2023/083

  EVA, i.e. ethylene vinyl acetate copolymer · CPC title

• B29K2025/06

  PS, i.e. polystyrene · CPC title