Patent ID: 9578986
Date: 2017-02-28
CPC Classifications: A47J

Claim:
1. A automatic coffee maker for the preparation of espresso coffee, the coffee maker comprising: an external box-shaped cupboard enclosing at least one elongated vertical piston, controllable by a first motor, operable from a raised position to a lowered position and vice versa; at least one boiler supplied by a water main and provided with thermostatted heating elements to prepare water and steam heated to pre-set temperatures; at least one coffee container, for containing coffee beans to be ground, associated with a grinding device of the coffee beans, actuated by a second motor, to prepare doses of ground coffee to be channeled downwardly by a channeling device; a pump and valves, connected with the boiler and the water main; a selector of coffee maker operating cycles, included in a control panel of the coffee maker; and an electronic controller connected operatively with the heating elements, the pump, the valves, the selector and the first and the second motors, so that, depending on operating cycles respectively chosen, the controller controls performance of the operating cycles and a collection and brewing of each single dose of ground coffee; where a collection and brewing collector is removably located in a lower part of the coffee maker during a brewing step and removable from the lower part of the coffee maker at an end of each brewing step, the collection and brewing collector arranged in a position underlying the at least one elongated vertical piston, and in a position under the channeling device, so to receive the ground coffee channeled downwardly and to supply espresso coffee produced during brewing into a serving container beneath; wherein the at least one elongated vertical piston includes at least one tube for circulation of hot water coupled with the boiler, via the valves, the at least one piston shaped to adapt a lower head thereof with the collection and brewing collector; wherein the collection and brewing collector includes a filter-holder element, formed of a cup-shaped container, the filter-holder element forming an integral unit with by an elongated handle for gripping by a user, and provided with a perforated filter to contain a dose of ground coffee, the integral unit of the filter-holder element and elongated handle being positionable and removable with respect to an attachment element fixed to the coffee maker, so that, in an operating position of the filter-holder element, the cup-shaped container is in a position underlying, and coinciding with, the lower head of the at least one piston, for adaption thereof in a chamber of the perforated filter, with interposition of a gasket fixed with the lower head to the at least one elongated vertical piston, the gasket serving to hermetically seal the chamber of the perforated filter during brewing; where the filter-holder element is removable from the coffee maker and includes a bottom thereof with a small spout-shaped tube for supply of the espresso coffee prepared.