05948455 is referenced by 119 patents and cites 24 patents.

A cartridge which contains a substance for preparation of a beverage and for use for preparation of the beverage. The cartridge has a base, a wall, a rim and a cover. The wall extends from the base to form a cup shape which is substantially a frustum shape, the rim extends from the wall and has a diameter greater than the base and the cover is welded to the rim to contain the substance in the cartridge. The base further has sheared areas thinned, with respect to a base remainder, which extend to define arrangements which are spiral, substantially sinusoidal portions, radial segments and concentric arcs of a circle and which, along a line of each sheared area to define thickness, have a thickness which varies along the line, the sheared areas providing, upon extraction of the substance in the cartridge under pressure, openings through the base for filtering and obtaining the beverage.

Title
Cartridge having sheared thinned areas for promoting opening for beverage extraction
Application Number
8/820875
Publication Number
5948455
Application Date
March 20, 1997
Publication Date
September 7, 1999
Inventor
Alfred Yoakim
La Tour-de-Peilz
CH
Jacques Schaeffer
Chardonne
CH
Agent
Vogt & O Donnell
Assignee
Nestec
CH
IPC
B65B 29/02
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