Automatic coffee-making machine with direct-current motor drive and worm screws
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United States of America Patent
Stats
-
Oct 26, 1993
Grant Date -
N/A
app pub date -
Jul 1, 1992
filing date -
Jul 3, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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Family
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Cited Art Landscape
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