Dual hopper coffee grinder

Details Dual hopper coffee grinder Dual hopper coffee grinder

1987-06-15

1990-11-20

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

With automatic control

241100, A47J 4250

Patent

active

049712594

ABSTRACT:
A coffee grinder in which coffee beans can be selectively fed by gravity to the grinder mechanism from either of two hoppers. Separate reciprocable slides close off or open separate discharge openings communicating between the bottom of each hopper and the grinder inlet for beans. The slides are operated by separate solenoids. An electrical control circuit including a dual timer, two solenoids and the grinder motor, allow an operator to selectively grind a predetermined quantity of beans from either of the hoppers.

REFERENCES:
patent: 1608718 (1926-11-01), Boyle et al.
patent: 2827845 (1958-03-01), Richeson
patent: 3053168 (1962-09-01), Mills
patent: 3153377 (1964-10-01), Bosak
patent: 3739709 (1973-06-01), Herbsthofer et al.
patent: 4607200 (1986-08-01), Zimmerman

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