Abstract: Apparatus for obtaining strong aromatic coffee having a scalding chamber within a cylinder for receiving coffee powder between separately controlled upper and lower pistons, a hydraulic piston for causing the upper piston to close the scalding chamber, a passage for introducing hot water into the closed chamber through the upper piston so as to cause the coffee powder to swell-up, a separate hydraulic piston for causing the lower piston to compress the swollen coffee, and a passage for draining off the coffee so formed through the lower piston.

Abstract: A coffee machine is disclosed which is of the type including a horizontal guide track and a brewing unit mounted for reciprocal movement on the guide track between predefined rest and brewing positions. The machine has first and second slides mounted for sliding movement on the track, a straining unit mounted to the side for movement therewith, a brewing chamber formed integrally with a cylinder that extends above it and a plunger which is axially movable into and out of the cylinder when it is in the brewing position in order to force brewing water into the brewing chamber from the cylinder. The brewing chamber has an open bottom and is mounted to the second slide means in a position above the straining unit for movement therewith. The brewing chamber can be moved into a predefined loading position in alignment with the straining unit into the brewing position together with the straining unit, and into an emptying position in which it is horizontally displaced with respect to the straining unit.

Abstract: A beverage extracting and dispensing machine for use with flattened round cartridges, which contain a brewable product, such as ground coffee, freeze-dried coffee, tea, broth and the like. The cartridges have permeable upper and lower walls and a substantially cylindrical sidewall.A cartridge may be slid to a brewing station in which it is laterally embraced by opposite clamping jaws. During its movement to the brewing station a new cartridge spreads the jaws apart and pushes an old cartridge away from the brewing station. The spreading apart of the jaws starts an automatic brewing cycle at the beginning of which a presser plate is lowered onto the cartridge and presses it with a tight seal on an underlying fixed support while the cartridge is laterally clamped by the jaws.

Abstract: A hot-beverage-brewing machine is disclosed in which the improvements consist in having the heating means directly applied to a cuplike compartment in which a single dosage unit is individually brewed and in providing a rotary blender dipping in the cuplike compartment to improve the heat exchange between the compartment wall and the liquid. Timing means are provided for having the water and soluble powder feeds in the appropriate sequence consistently with the other operations which are required for brewing the beverages.

Abstract: A diluting and pouring apparatus for a liquid food such as soup or juice supplied in a raw or condensed state is disclosed which comprises a casing having a circular inner periphery and a rotor supported rotatably in the casing so that while rotating it always provides three discrete chambers, the first chamber being for cleaning, the second chamber being for receiving a constant amount of the raw liquid and the third chamber being for diluting the raw liquid with a diluent and pouring the diluted liquid.

Abstract: An automatic coffee machine comprising a stationary cylinder wherein the coffee infusion is made; a lower piston vertically reciprocable within said cylinder between a coffee making lower position and an exhausted coffee dreg discharging upper position in line with the upper edge of said cylinder; an upper piston vertically reciprocable between a coffee making lower position within said cylinder and an upper position outside said cylinder, said upper piston being shiftable, in its upper position, from its alignment with said cylinder, in order to leave a coffee powder dose feeding funnel to be aligned with said cylinder; hot water feeding means into said cylinder between said pistons when in their coffee making positions; means for collecting the coffee infusion as obtained by passage of said hot water through said powdered coffee dose; and means for mechanically and sequentially controlling said piston motions and hot water feeding means.

Abstract: A coffee vendor comprising a brewer having a horizontal relatively small-mesh screen therein dividing the brewer into upper and lower chambers, a line for delivering hot water to the upper chamber of the brewer, a line for delivering filtered brewed coffee from the brewer, an air compressor for delivering compressed air to the upper chamber of the brewer, and a sanitizing system for cleaning the brewer and the delivery line. The sanitizing system includes a programmer motor for operation of the vendor through a sanitizing cycle comprising a series of successive hot-water rinse cycles. Switches operated by cams driven by the programmer motor program the sanitizing cycle, which is initiated by closure of a manual start switch, the cycle being automatically terminated.

Abstract: A coffee making machine comprising a thin-walled molded plastic shell-like housing with a two-piece molded core of heat insulating foam plastic slidably engaged in the housing; said machine includes a water supply unit including a tank with an electric heater means related to it, a hot water dispensing means communicating with the tank, a dehydrated granular coffee concentrate metering and dispensing unit and a coffee concentrate and hot water receiving and mixing unit with a coffee dispensing duct; said core has openings to cooperatively receive said water supply unit, water dispensing means and said concentrate metering and dispensing unit; said housing has openings to facilitate engagement of the core and means within the core therein and to provide access thereto; said housing has means to releasably receive and hold said mixing unit to receive water and concentrate from the water dispensing means and the dispensing unit and to deliver coffee into a drinking receptacle related to the machine.

Abstract: Apparatus is disclosed for use in brewing single cup quantities of a beverage such as coffee. A frame supports a vertically movable open-bottom cylinder and a piston within the cylinder. A base assembly is reciprocal horizontally between the brewing position and a discharge position. In the brewing position, a brewing cavity is disposed beneath and sealed with the cylinder. Actuation of various components through a predetermined repetitive cycle is controlled by a motor driven camshaft.

Abstract: A coffee making assembly for automatic, domestic or bar coffee machines, having a fixed cylinder wherein two opposite pistons reciprocate in order to define an infusion chamber therein, the upper piston, in its upper dead center outside the cylinder, being horizontally translated by a support carrying a funnel adapted to be axially aligned with said cylinder in order to convey a pre-set toasted and powdered coffee dose therein. All movements of said pistons and support are controlled by levers and cams operated by a single motor shaft.

Abstract: A device for automatically producing a coffee infusion by means of a single control for a continuously rotating motor. The device comprises means to proportion a charge of coffee, means to place the charge, means to infuse the charge, means to compress the infused charge so as to form a press cake, and means to eject the press cake. The device further comprises a cam having a single pinion, and first and second racks, the first pinion being arranged so as to simultaneously engage the first and second racks. Th racks are arranged so as to drive each of the means so as to sequentially produce the coffee infusion.

Abstract: This invention relates to a process and apparatus for the production of an aroma flavor concentrate from aroma- and flavor-bearing substrates, especially roasted and ground coffee. More particularly, the invention is concerned with a process for continuously de-aromatizing and desorbing aroma and flavor constituents from said substrates by passing wet steam counter-currently through a continuous columnar bed of said substrate, said bed flowing upwardly through a substantially upright vacuum-tight desorption column. Wet steam is applied in an amount and manner to form and maintain a substantially stationary desorption zone in said flowing columnar bed at a finite distance above a bottom inlet of said upright desorption column. The stationary desorption zone is formed by the condensation of the wet steam as it passes into a progressively cooler temperature gradient in said flowing columnar bed.

Abstract: Apparatus for preparing a cup of hot drink includes a hot water supply device and a powder supply device. The hot water supply device comprises a tank for storing the hot water, a member for controlling the temperature of the hot water in the tank, valve means for controlling the pressure of the hot water, a pipe for feeding the hot water and valve means for controlling the amount of the hot water to be fed. The powder supply device comprises a hopper filled with the powder, a powder measuring device connected to the bottom of the hopper, a chute connected to the bottom of the powder measuring device, and a table on which a cup is placed so that the hot water is poured eccentrically from the center of the cup. The powder measuring device comprises a two-stage shutter mechanism.

Abstract: An automatic coffee-making machine comprising a grinder delivering ground coffee to a metering device storing a metered quantity of ground coffee and of releasing the metered quantity to a delivery chute displaceable from an inoperative position to an operative position above a fixed filter carrier in which is disposed a lower filter for the support of delivered ground coffee. The grinder is driven by a motor responsive to the delivery of a metered quantity of ground coffee to disconnect the motor from the grinder. A piston and cylinder arrangement delivers a measured quantity of hot water to the fixed filter carrier and is displaceable between a lower position to confine the ground coffee therein and to deliver hot water thereto and an upper position.

Abstract: This percolator is directed to preserve the flavor and aroma of coffee and comprises for this purpose a filter engaging piston and another piston for compressing and discharging the coffee grounds, both pistons being disposed on a same horizontal axis in mutual registration in a common cylinder and driven independently of each other by separate hydraulic pistons.

Abstract: An automatic coffee-brewing machine comprising a plurality of storage containers, each holding one charge of brewed coffee, connected in parallel between a brewing chamber and a brewed-coffee outlet. By means of an arrangement of sensors and valves, the containers are successively filled and successively emptied automatically.

Abstract: Novel infusion-making machine characterized by a filter consisting of superposed crowns located in a centrifuging chamber eccentric with respect to a central shaft rotated by a motor, and submitted to a compound motion. The adjustments of the crowns permits infusing and filtering over a broad range so that the machine may be used in a variety of applications.

Abstract: An apparatus for brewing beverages from a ground or powdered substance comprises a movable intermediate member for conveying the substance to a stationary brewing chamber while simultaneously ensuring proper sealing of the chamber and measurement of the substance.

Abstract: There is described an automatic coffee-making apparatus comprising, in a casing including coffee inlet, beverage percolation outlet and spent coffee discharge outlet means, a rotor having opposite cavities diametrically bored thereinto, and pistons slidably located in said cavities, said pistons being interconnected and forming in each respective cavity an outer space open on the rotor peripheral wall and an inner annular space of cross-sectional area less than that of the outer space, and duct means for phasedly and selectively supplying hot pressurized water in said annular spaces during percolation to discharge spent coffee.

Abstract: A container of evacuated double wall construction has an open neck for receiving a beverage after the beverage has been heated to a desired temperature. A stopper member receivable in the open neck incorporates an evacuated electric light bulb covering a major portion of the cross sectional area of the neck to provide further heat insulation and also radiate heat onto beverage within the container. Regulation of the heat to maintain the beverage at a desired constant temperature is accomplished by a pressure actuated switch incorporated in the stopper member. When water is used as the beverage, the heated water can be passed from the container through an outlet spout to a cartridge housing including pay out and take up spools for a series of packets connected together to form a ribbon. Successive packets may be positioned under the spout and include coffee beans, the cartridge including a cup receiving area so that coffee can be brewed directly into a cup.

Abstract: A coffee mill comprising a vertical screw of generally cylindrical form, provided with at least one helical groove and mounted to cooperate with a truncated conical crushing chamber having a section decreasing towards a cylindrical bore at the lower end of the chamber, which section serves to guide the lower part of the said screw, said groove having a pitch which decreases progressively towards its lower end, and a depth which decreases progressively towards its lower end.

Abstract: A container in which a beverage may be brewed from a ground or powdered substance comprises a sealing piston having surfaces of different sizes upon which hot water impinges during the brewing operation, thus creating a pressure differential which ensures proper sealing between the stationary body and the movable head of the container.

Abstract: An electric drip coffeemaker wherein a dry ground coffee dispenser is supported at an upper overhanging portion of a housing, a carafe is positioned on a lower stand portion of the housing at one side of the dispenser, and a ground coffee basket is selectively positionable on guideways which are provided at the lower portion of the dispenser and at the top wall of the housing above the carafe.

Abstract: Automatic coffee maker comprises a rotatable chamber defined by upper and lower members which closely approach each other to define a narrow gap at their peripheral edges, one of which edges is flexible. Ground coffee is centrifugally driven toward said gap, which, in one position of the chamber is too narrow to pass the grounds, while permitting liquid to seep therethrough. The chamber may be moved to a second position in which the gap is wide enough to release the grounds.

Abstract: A filter is provided for a brew cup for use in a hot beverage brewing machine such as a coffee brewing and dispensing machine. The filter is attached to the inside of a brew cup about halfway up the side walls and to the center of a guide spider axially movable within the brew cup. By this arrangement, spent grounds and fines are prevented from traveling with the brewed coffee or other beverage as it passes through the brew cup. When the brew cup mechanism is inverted and moved to the dumping station, this arrangement provides for the dumping of substantially all of the spent grounds and fines by a snap action applied to the spider and the filter material. The filter material is restrained from engaging the floor of the brew cup to prevent clogging and caking of the filter material and fines or spent grounds on the floor of the brew cup.

Abstract: An automatic coffee brewing system for brewing coffee in a chamber and dispensing the brewed coffee into a container. The chamber is automatically flushed upon completion of the brewing cycle. A predetermined amount of coffee grinds is automatically inserted into the coffee brewing chamber through an open lid. The brewing chamber is then rotated until the lid is closed. Hot brewing water is then inserted into the chamber, while the lid is automatically locked to prevent leakage of the brewed coffee. The brewed coffee then is removed from the chamber. The chamber is then rotated to enable the coffee grounds to be flushed from the chamber. The chamber is then rotated into position for brewing another container of coffee. A conical-shaped filter in the chamber enables brewed coffee to pass through to an outlet and simultaneously, retains the grounds in the chamber. During the flush cycle, water is forced into the chamber and the coffee grounds are cleared from the filter.

Abstract: A coffee vendor comprising a brewer having a horizontal relatively small-mesh screen therein dividing the brewer into upper and lower chambers, a line for delivering hot water to the upper chamber of the brewer, a line for delivering filtered brewed coffee from the brewer, an air compressor for delivering compressed air to the upper chamber of the brewer, and a sanitizing system for cleaning the brewer and the delivery line. The sanitizing system includes a programmer motor for operation of the vendor through a sanitizing cycle comprising a series of successive hot-water rinse cycles. Switches operated by cams driven by the programmer motor program the sanitizing cycle, which is initiated by closure of a manual start switch, the cycle being automatically terminated.