Device for the production of cafes making it possible to convey the ground by the action of an endless screw in a tube / horizontal filter and to reject the marc before injecting hot water above the filter, the recovered coffee given below of the filter.

摘要

Device for the production of coffees which makes it possible to convey the ground by the action of an endless screw (the archimedes') in a tube / horizontal filter and then inject laterally from the hot water at the top of the filter, the coffee flows then below the filter, the marc being dropped at the end of the tube, a technique which is the subject of a cycle repeats. The present invention relates to a device which avoids having to handle the grounds for the subject to the pressure of the water in a filter, on the other hand, to the remainder of the production of coffee, the grounds for the removal of the filter. The device is constituted by static elements: a tube / filter (2), a reserve of ground (4), a distributor of the injection of water (5), a collector of coffee (6), a support (7.1), the first fixed on the legs (8) and elements which can be operated: an endless screw (1) integral with a crank (3) and a system of identification by movement of a gauge (3.1) in order to convey the ground coffee, a scraper / stopper (7.4) / (7) in order to obstruct the tube (2) by tightening a screw / piston (7.3) / (7.5) on the support (7.2) and a valve (5.1), which can be inserted in a step (1.4) of the endless screw (1) before the filter portion of the tube (2). The device according to the invention associated with a source of hot water under pressure is intended to compose a coffeemaker.