A - Human Necessities – 47 – J
Patent
A - Human Necessities
47
J
A47J 31/06 (2006.01) B65D 81/00 (2006.01)
Patent
CA 2421128
A beverage cartridge comprises a container having a sidewall extending from a first surface and a lip provided at an open end of the container. A cover is coupled to the lip of the container to cover the open end and seal the container. A sloped step is formed in the sidewall and a laminated filter structure is coupled to the sloped step. The laminated filter structure subdivides the container to form a brewing chamber and a beverage receiving chamber. The laminated filter structure includes first and second filter elements, both having edge portions. The first filter element is comprised of cellulose fibres and the second filter element is comprised of strands of extruded polypropylene fibres joined together to inhibit separation of the strands. A seal is provided between the edge portions of the first and the second filter elements. The second filter element has a higher wet strength than the first filter element and the second filter element is located downstream of the first filter element. The elasticity of the second filter element permits expansion of the second filter element under pressure while providing support for the first filter element. A beverage powder is contained in the brewing chamber. The container is pierceable to allow injection of liquid into the brewing chamber and to allow prepared beverage to be extracted from the container.
Hale Robert
Perry + Currier
LandOfFree
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