Capsule for preparing a beverage
AssigneeBrain Corporation
InventorOlivier Brivois
Life of this patent
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Abstract
The invention relates to a capsule for containing a substance for preparing a beverage by placing the capsule in the cavity of a piston. The capsule has a body with a rim and a sealing ring which is attached to the lower wall of the rim. The sealing ring has an upper face bearing on the lower wall of the ring and a free lower face. The capsule has an inner bearing surface and an outer bearing surface each projecting from the rim forming a groove that is arranged to sealingly receive the peripheral edge of the piston during the preparation of the beverage. At least the outer bearing surface is formed on an inner wall of a ring and formed in one part on the free lower face of the sealing ring.
Claims20
A capsule intended for containing a substance for preparing a beverage by placing the capsule in the cavity of a piston, the capsule comprising a body with a lateral wall bordered on either side by a bottom and by a rim surrounding an opening of the body, the rim having a lower wall projecting laterally from the lateral wall, the rim is connected to the lateral wall by a rounded transition, the capsule being fitted with a single one-piece sealing ring attached to the lower wall, the sealing ring having an upper face bearing on the lower wall and a free lower face, the sealing ring also having an inner periphery which is arranged bearing against the rounded transition of the lateral wall, the capsule having an inner bearing surface and an outer bearing surface each projecting from the rim in an axial direction, forming therebetween a groove that is arranged to sealingly receive the peripheral edge of the piston in a sealing manner during the preparation of the beverage, at least the outer bearing surface being formed in one piece on the free lower face of the sealing ring.
The capsule according to 1, wherein the sealing ring is made based on a cellulose material.
A capsule intended for containing a substance for preparing a beverage by placing the capsule in the cavity of a piston, the capsule comprising a body with a lateral wall bordered on either side by a bottom and by a rim surrounding an opening of the body, the rim having a lower wall projecting laterally from the lateral wall, the capsule being fitted with a sealing ring attached to the lower wall the sealing ring having an upper face bearing on the lower wall and a free lower face, the capsule having an inner bearing surface and an outer bearing surface each projecting from the rim in an axial direction, forming therebetween a groove that is arranged to sealingly receive the peripheral edge of the piston in a sealing manner during the preparation of the beverage, at least the outer bearing surface being formed in one piece on the free lower face of the sealing ring;
- wherein the sealing ring comprises an inner periphery which is arranged bearing against the lateral wall of the body, the inner periphery has angularly distributed teeth spaced apart by notches, the teeth defining an inner dimension which is smaller than the outer dimension of the lateral wall to ensure a clamping of the ring around the lateral wall.
A capsule intended for containing a substance for preparing a beverage by placing the capsule in the cavity of a piston, the capsule comprising a body with a lateral wall bordered on either side by a bottom and by a rim surrounding an opening of the body, the rim having a lower wall projecting laterally from the lateral wall, the rim is connected to the lateral wall by a rounded transition, the capsule being fitted with a single one-piece sealing ring attached to the lower wall, the sealing ring having an upper face abutting the length of the lower wall and a free lower face, the sealing ring also having an inner periphery which is arranged bearing against the rounded transition of the lateral wall, the capsule having an inner bearing surface and an outer bearing surface each projecting from the rim in an axial direction, forming therebetween a groove that is arranged to sealingly receive the peripheral edge of the piston in a sealing manner during the preparation of the beverage, at least the outer bearing surface being formed in one piece on the free lower face of the sealing ring.
Dependencies are inferred from the claim text.