Household coffee machine with calcification indicator

Details Household coffee machine with calcification indicator Household coffee machine with calcification indicator

1977-06-13

1978-10-31

Jenkins, Robert W.

Foods and beverages: apparatus

Beverage

Infusors

340608, A47J 3158

Patent

active

041227638

ABSTRACT:
A coffee making machine having a calcification indicator system which turns an indicator device on and off to warn of the presence of calcine deposits in the water flow path of a flow heater is disclosed. The coffee machine calcification indicator system includes a glow lamp in a circuit arrangement with a signal flasher circuit. At least a portion of the calcification indicator system is connected in a parallel circuit arrangement with a heater thermostat switch. A calcification indicator switch is actuated at a time dependent upon the conclusion of the coffee making process to disable the operation of the calcification indicator device.

REFERENCES:
patent: 3430232 (1969-02-01), Martin
patent: 3443508 (1969-05-01), Reynolds
patent: 3693535 (1972-09-01), Abel

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