Control system for automatic coffee brewing machines

Details Control system for automatic coffee brewing machines Control system for automatic coffee brewing machines

1978-08-30

1979-05-22

Jenkins, Robert W.

Foods and beverages: apparatus

Beverage

Infusors

99283, 219441, 219446, A47J 3146, A47J 3156, H05B 100

Patent

active

041552911

ABSTRACT:
An automatic coffee brewing machine is provided with a heater for heating the pump apparatus for forcing water therethrough, thermostatic switch means associated with the pump apparatus for sensing the completion of the brewing cycle, and circuit means including the switch means effective upon completion of the brewing cycle for changing the power output of the heater from the high level required for brewing operation to a much lower level required to prevent reinitiation of the brewing cycle. A heating unit for a carafe holding brewed coffee has heating means associated with the circuit means for producing heat both during and after the brewing cycle, the heat produced during the brewing cycle being greater than that produced after the brewing cycle.

REFERENCES:
patent: 3405630 (1968-10-01), Weber
patent: 3513767 (1970-05-01), Bloomfield
patent: 3987717 (1976-10-01), Bergmann
patent: 4069750 (1978-01-01), Kemp
patent: 4100394 (1978-07-01), Tilp

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