Automatic coffee-making machine with direct-current motor drive

Details Automatic coffee-making machine with direct-current motor drive Automatic coffee-making machine with direct-current motor drive

1992-07-01

1993-10-26

Simone, Timothy F.

Foods and beverages: apparatus

Beverage

Infusors

99289R, 99297, 99302P, A47J 3134

Patent

active

052555941

ABSTRACT:
An automatic coffee-making machine including a drive unit consisting of a direct-current motor having an output shaft provided with a worm screw actuating a sealed rod of a valve body and engaging with a slider movable linearly at a right angle to an axis of rotation of the motor shaft, a shaped member connected with the slider and receiving a free end of a rod of piston, and a device for monitoring and controlling the power input to motor, determining a start and an end of strokes of the piston during the phases of downward movement and compression of the powdered coffee.

REFERENCES:
patent: 2252614 (1941-08-01), Bowen
patent: 3277734 (1966-10-01), Bernard
patent: 3440951 (1969-04-01), Barrera
patent: 4796521 (1989-01-01), Grossi
patent: 4934258 (1990-06-01), Versini

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