Single serve capsule comprising a filter element connected thereto by sealing

Patent metadata

Field	Value
Publication number	US-10669093-B2
Application number	US-201615553636-A
Country	US
Kind code	B2
Filing date	Feb 22, 2016
Priority date	Feb 27, 2015
Publication date	Jun 2, 2020
Grant date	Jun 2, 2020

Abstract

The present invention relates to a single serve capsule for preparing a beverage, comprising a side wall and a bottom, which together define a space, a filter element being sealed to the bottom within said space.

First claim

The invention claimed is:

1. A single-serve capsule for producing a beverage, having a side wall and a base which together define a space, wherein, within the space, a filter element is sealed to the base or to a carrier element by a substantially annular sealing seam, wherein the filter element comprises a nonwoven material, wherein an outside diameter of the sealing seam is 60 to 70 percent of a diameter of the filter element.

2. The single-serve capsule as claimed in claim 1 , wherein an inside diameter of the sealing seam is 45 to 65 percent of the diameter of the filter element.

3. The single-serve capsule as claimed in claim 2 , wherein the inside diameter of the sealing seam is 50 to 60 percent of the diameter of the filter element.

4. The single-serve capsule as claimed in claim 1 , wherein the diameter of the filter element is between 24 and 36 millimeters.

5. The single serve capsule as claimed in claim 4 , wherein the diameter of the filter element is between 29 and 31 millimeters.

6. The single-serve capsule as claimed in claim 1 , wherein a width of the sealing seam is 1 to 1.5 millimeters.

7. The single-serve capsule as claimed in claim 1 , wherein the base has a substantially flat portion, an outside diameter of which is 84 to 94 percent of the diameter of the filter element.

8. The single-serve capsule as claimed in claim 1 , wherein the base has a clearance which is large enough that, when the beverage flows out through the clearance, substantially no pressure drop occurs.

9. The single-serve capsule as claimed in claim 1 , wherein the diameter of the filter element is 1 to 5 percent smaller than an internal dimension of the single-serve capsule at the level of the base.

10. The single-serve capsule as claimed in claim 1 , wherein the filter element is formed in a multilayer manner.

11. The single-serve capsule as claimed in claim 1 , wherein a maximum diameter of the filter element is greater than a diameter of the base.

12. The single-serve capsule as claimed in claim 1 , wherein at least one side, facing the space, of the filter element comprising the nonwoven material is calendered.

13. The single serve capsule as claimed in claim 12 , wherein at least one side, facing the space, of the filter element comprising the nonwoven material is spot calendered.

14. The single serve capsule as claimed in claim 12 , wherein at least one side, facing the space, of the filter element comprising the nonwoven material is heat-treated.

Assignees

• K Fee System Gmbh

Inventors

• Empl Günter
• Throm Andre
• Hanisch Marco

Classifications

• B65D85/8043 Primary

  Packages adapted to allow liquid to pass through the contents (B65D85/808 takes precedence; filters or reusable cartridges for coffee or tea makers, not used as packages A47J31/06) · CPC title

• B65D77/24

  Inserts or accessories added or incorporated during filling of containers (opening devices B65D77/30) · CPC title

• B65D85/8061 Primary

  Filters · CPC title

• A47J31/407

  with ingredient-containing cartridges; Cartridge-perforating means · CPC title

• B65D85/8052

  Details of the outlet · CPC title