Patent ID: 7854192
Filing Date: 2010-12-21
Classification: A47J

Abstract:
1. A device for preparing a beverage from a food substance contained in a capsule, the device comprising a housing for receiving the capsule, at least one piercing and injection element having a channel for receiving a liquid under pressure, the piercing and injection element being so constructed and arranged to project into the housing and pierce a face of the capsule in at least one position of operation of the device so as to allow a liquid to be introduced into the capsule from the channel, the piercing and injection element having a distal end arranged in the form of a valve having a closure means with an end, the valve being designed to close off the channel in a first position and to open under the effect of the pressure from the liquid against an elastic element so as to free a passage as a function of the pressure and thus create a layer of liquid sprayed through the passage in a second position, wherein the piercing and injection element comprises a tubular body defining the channel, the tubular body comprises a proximal orifice for connection to a liquid intake and a distal orifice defining the passage with a pointed part, the distal orifice and the proximal orifice being linked by the channel, and in the closure means has a rear guide part that slides in the tubular body, and wherein the pointed end comprises an external peripheral surface lying in the extension of the external peripheral surface of the tubular body, and wherein the closure means comprises, behind a pointed end, a shoulder surface and the rear guide part comprises openings allowing a liquid to flow from the proximal orifice to the shoulder surface and through the passage in the second position.