US 12,151,876 B2
Methods of making and using a portion capsule
Günter Empl, Bergisch Gladbach (DE)
Assigned to K-FEE SYSTEM GMBH, Bergisch Gladbach (DE)
Filed by K-FEE SYSTEM GMBH, Bergisch Gladbach (DE)
Filed on May 18, 2023, as Appl. No. 18/198,940.
Application 15/170,674 is a division of application No. 14/409,225, granted, now 9,394,101, previously published as PCT/EP2013/062610, filed on Jun. 18, 2013.
Application 18/198,940 is a continuation of application No. 17/173,426, filed on Feb. 11, 2021, granted, now 11,702,276.
Application 17/173,426 is a continuation of application No. 16/398,701, filed on Apr. 30, 2019, granted, now 11,312,567.
Application 16/398,701 is a continuation of application No. 15/170,674, filed on Jun. 1, 2016, granted, now 10,343,838.
Claims priority of application No. 10 2012 105 282.4 (DE), filed on Jun. 18, 2012.
Prior Publication US 2023/0286733 A1, Sep. 14, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A47J 31/36 (2006.01); A23C 9/15 (2006.01); A23F 3/18 (2006.01); A23F 5/26 (2006.01); A23G 1/56 (2006.01); A47J 31/06 (2006.01); B65B 7/28 (2006.01); B65B 25/00 (2006.01); B65B 29/02 (2006.01); B65B 47/04 (2006.01); B65D 65/02 (2006.01); B65D 85/804 (2006.01); B65D 65/46 (2006.01)
CPC B65D 85/8061 (2020.05) [A23C 9/1508 (2013.01); A23F 3/18 (2013.01); A23F 5/262 (2013.01); A23G 1/56 (2013.01); A47J 31/0642 (2013.01); A47J 31/0673 (2013.01); A47J 31/369 (2013.01); A47J 31/3695 (2013.01); B65B 7/2842 (2013.01); B65B 25/001 (2013.01); B65B 29/02 (2013.01); B65B 29/022 (2017.08); B65B 47/04 (2013.01); B65D 65/02 (2013.01); B65D 85/8046 (2013.01); A23V 2002/00 (2013.01); B65D 65/466 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of making a portion capsule comprising:
providing or forming a capsule body comprising a collar edge and a capsule bottom;
placing a filter element having elastic properties inside of the capsule body so that a bottom part of the filter element is spaced apart from the capsule bottom of the capsule body;
attaching the filter element to an inside wall portion of the capsule body; and
attaching a cover to the capsule body,
wherein the capsule bottom is configured to be perforated by a perforator of a coffee machine, while the filter element remains unperforated by the perforator.