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US 11,440,717 B2Granted
Espresso cartridge with improved sealing to espresso machine
OwnerAdrian Riverainventor
Life of this patent
Estimating the term…
Abstract
An espresso cartridge includes contours under a rim of the espresso cartridge for guiding and sealing the espresso cartridge in an espresso brewing machine. Espresso brewing machines inject a high pressure flow of water heated to near boiling temperature into the espresso cartridge to brew espresso. As a result, a very good seal is required between the espresso cartridge rim and the espresso brewing machine to prevent leaking. The contours includes a first contour which centers the espresso cartridge in the machine and a second contour which is crushed to seal the espresso cartridge to a brewing chamber base.
Claims20
An espresso cartridge, comprising:
- a cartridge base configured as a container having an opening, wherein the opening is defined by an edge of the cartridge base;
- and
- a cartridge lid having a first surface, wherein the first surface of the cartridge lid is attached to the edge of the cartridge base, thereby covering the cartridge base opening;
- wherein the cartridge lid includes a cartridge lid rim extending beyond the cartridge base edge and forming a periphery of the cartridge lid outside the cartridge base edge:
- and
- wherein the cartridge lid rim includes
- a lip extending away from the first surface of the cartridge lid at an outermost perimeter of the cartridge lid;
- a sealing contour arranged on the first surface of the cartridge lid rim, extending away from the first surface;
- and
- a centering contour arranged on the first surface of the cartridge lid, extending away from the first surface and configured to contact a raised edge and to align the sealing contour toward the raised edge;
- wherein the lip, the sealing contour, and the centering contour are the only raised features on the first surface, which is otherwise flat.
8 more elements
An espresso cartridge, comprising:
- a container having an opening, wherein the opening is defined by an edge of the cartridge base;
- and
- a lid having a first surface, wherein the first surface of the lid is attached to the edge of the container, thereby covering the container opening;
- wherein the lid includes a rim extending beyond the container edge and forming a periphery of the lid outside the cartridge base edge;
- and
- wherein the rim includes
- a lip extending away from the first surface at an outermost perimeter of the lid;
- an annular sealing contour arranged on the first surface of the lid, extending away from the first surface;
- and
- an annular centering contour, arranged on the first surface of the lid and concentric with the annular sealing contour, extending away from the first surface and configured to contact a raised edge and to align the annular sealing contour toward the raised edge, wherein the annular centering contour is further configured such that the annular centering contour extends away from the first surface a greater distance than the annular sealing contour extends from the first surface;
- wherein the lip, the annular sealing contour, and the annular centering contour are the only raised features on the first surface, which is otherwise flat.
8 more elements
A beverage brewing cartridge including means for sealing against a raised edge of a brewing machine, the beverage brewing cartridge comprising:
- container means for containing a measured quantity of ground brewing material, the container means having an opening, wherein the opening is defined by a container means edge;
- and
- covering means, having a first surface, for covering the container means opening such that the first surface of the covering means seals the container means edge;
- wherein the covering means includes a rim that extends beyond the container means edge and forms a periphery of the covering means outside the container means edge;
- and
- wherein the rim of the covering means includes
- lip means extending away from the first surface at an outermost perimeter of the covering means;
- annular sealing means for sealing against the raised edge, arranged on the first surface of the covering means within the periphery of the covering means, extending away from the first surface;
- and
- annular centering means, arranged concentric with the annular sealing means, extending away from the first surface for contacting the raised edge and to position the annular sealing means against the raised edge, wherein the annular centering means is further configured such that the annular centering means extends away from the first surface a greater distance than the annular sealing means extends from the first surface;
- wherein the lip means, the annular sealing means, and the annular centering means are the only raised features on the first surface, which is otherwise flat.
8 more elements
Dependencies are inferred from the claim text.