Container and bottom end construction therefor

Patent metadata

Field	Value
Publication number	US-11760529-B2
Application number	US-202016838898-A
Country	US
Kind code	B2
Filing date	Apr 2, 2020
Priority date	Apr 5, 2019
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

A container with a deep recessed bottom end construction is provided. The container includes an inner receptacle having a sidewall and a bottom wall defining an interior volume within the receptacle. The container further includes an outer sleeve wrapped around the inner receptacle with a lower end extending below the lower edge of the receptacle to form a deep bottom recess within a lower portion of the container. The lower end of the receptacle sidewall has a taper angle that is different from a taper angle of an upper portion of the sidewall. The lower end of the receptacle sidewall may engage or contact the inner surface of the outer sleeve. The outer sleeve may include reverse bend and/or a second bottom wall onto which a lower end of the receptacle may sit.

First claim

What is claimed is:

1. A multi-walled container comprising:
an inner receptacle including a sidewall, an uppermost edge, a lowermost edge, and a first bottom wall, wherein an upper portion of the sidewall extending below the uppermost edge has a first taper angle and a lower end of the sidewall extending above the lowermost edge of the receptacle has a second taper angle; and
an outer sleeve having an inner surface and an outer surface, the outer sleeve at least partially surrounding the inner receptacle;
wherein at least a portion of the lowermost edge of the lower end of the receptacle sidewall is in contact with the inner surface of the outer sleeve;
wherein a lower end of the outer sleeve extends beyond and is located below the lowermost edge of the receptacle sidewall;
wherein the lower end of the outer sleeve comprises a reverse bend portion having an upper terminal edge;
wherein at least a portion of the lowermost edge of the lower end of the receptacle sidewall is in contact with the upper terminal edge of the reverse bend.

2. The container of claim 1 , wherein the first bottom wall includes a downwardly depending annular skirt secured the receptacle sidewall.

3. The container of claim 2 , wherein the lower end of the receptacle sidewall forms a reverse bend portion at least partially surrounding the annular skirt of the first bottom wall.

4. The container of claim 1 , wherein a circumferential gap is defined between the inner receptacle sidewall and the outer sleeve.

5. The container of claim 1 , wherein the first taper angle is between about 0° and about 30° measured from vertical and wherein the second taper angle is about between about −10° and about 2° measured from vertical.

6. The container of claim 1 , wherein the first taper angle is between about 3° and about 5° measured from vertical and wherein the second taper angle is about between about −1° and about 1° measured from vertical.

7. The container of claim 1 further comprising an outwardly rolled upper lip that includes the uppermost edge.

8. The container of claim 1 wherein the inner receptacle and the outer sleeve are constructed from a paperboard material.

9. A multi-walled container comprising:
an inner receptacle including a sidewall, an uppermost edge, a lowermost edge, and a first bottom wall, wherein a frustoconical upper portion of the sidewall extending below the uppermost edge has a first taper angle and a lower end of the sidewall extending above the lowermost edge of the receptacle has a second taper angle; and
an outer sleeve having an inner surface and an outer surface, the outer sleeve at least partially surrounding the inner receptacle and having a lower end that extends beyond and is located below the lowermost edge of the receptacle sidewall;
wherein at least a portion of the lowermost edge of the lower end of the receptacle sidewall is in contact with the inner surface of the outer sleeve;
wherein the lower end of the outer sleeve comprises a reverse bend portion having an upper terminal edge, and wherein at least a portion of the lowermost edge of the lower end of the receptacle sidewall is in contact with the upper terminal edge of the reverse bend of the outer sleeve.

10. A method of forming multi-walled container comprising:
obtaining an inner receptacle including a sidewall, an uppermost edge, a lowermost edge, and a bottom wall, wherein an upper portion of the sidewall extending below the uppermost edge has a first taper angle;
forming a lower end of the receptacle sidewall such that the lower end of the sidewall extending above the lowermost edge of the receptacle has a second taper angle different from the first taper angle;
obtaining an outer sleeve having an inner surface and an outer surface;
forming a reverse bend portion into a lower end of the outer sleeve, the reverse bend portion having upper terminal edge;
combining the outer sleeve and inner receptacle such that at least a portion of the lowermost edge of the lower end of the receptacle sidewall is in contact with the inner surface of the outer sleeve; and
positioning the outer sleeve relative to the inner receptacle such that at least a portion of the lowermost edge of the lower end of the receptacle sidewall is in contact with the upper terminal edge of the reverse bend of the outer sleeve.

11. A multi-walled container comprising:
an inner receptacle including a sidewall, an uppermost edge, a lowermost edge, and a first bottom wall, wherein an upper portion of the sidewall extending below the uppermost edge has a first taper angle and a lower end of the sidewall extending above the lowermost edge of the receptacle has a second taper angle; and
an outer sleeve at least partially surrounding the inner receptacle, the outer sleeve including an inner surface and an outer surface, and a lower end comprising a reverse bend portion having an upper terminal edge;
wherein the lower end of the outer sleeve extends beyond and is located below the lowermost edge of the inner receptacle sidewall;
wherein at least a portion of the lowermost edge of the lower end of the inner receptacle sidewall is in contact with the inner surface of the outer sleeve; and
wherein at least a portion of the lowermost edge of the lower end of the inner receptacle sidewall contacts and is seated on the upper terminal edge of the reverse bend portion of the outer sleeve.

Assignees

• Huhtamaki Inc

Inventors

• Robertson Ronald

Classifications

• B65D3/22 Primary

  with double walls; with walls incorporating air-chambers; with walls made of laminated material {(for thermal insulating purposes B65D81/3818)} · CPC title

• B65D3/14

  Discs fitting within container end and secured by bending, rolling, or folding operations · CPC title

• B65D81/3869

  formed with double walls, i.e. hollow · CPC title

• B65D3/04

  essentially cylindrical · CPC title

• B31B2120/50

  covered or externally reinforced · CPC title