US Patent 10336531 Capsule with steeping chamber

A capsule is provided for use in a machine for preparing a consumable product from capsules. The capsule includes a body that defines an interior space with an opening. A cover is disposed over the opening and is adapted to shrink sufficiently when pierced by the injection system to allow pressure to build beneath the cover up to a maximum pressure. A filter is disposed in the interior space to define a steeping chamber between the filter and the cover and is adapted to restrict the flow of fluid sufficiently to cause the steeping chamber to fill with fluid without exceeding the maximum pressure. Ingredients are disposed in the interior space for preparing a desired product.