Detection and display device for automatic service expresso coff

Details Detection and display device for automatic service expresso coff Detection and display device for automatic service expresso coff

1988-02-09

1988-11-29

Jenkins, Robert W.

Foods and beverages: apparatus

Beverage

Infusors

99286, 99295, A47J 3142, A47J 3100

Patent

active

047872993

ABSTRACT:
The invention concerns a detection and display device for automatic service expresso coffee machine which automatically outputs and displays water or ground coffee doses according to the capacity of the filter-holder bowl engaged on the bowl-holder of the coffee machine.
Detection and display are obtained by means of an actuator-detector system generating electric signals, such as one or more magnetic elements (5) mounted on filter-holder bowl (1) and a Hall effect detector (A) mounted on bowl-holder (11) of the coffee grinder or coffee machine.

REFERENCES:
patent: 4242568 (1980-12-01), Gurtner
patent: 4412481 (1983-11-01), Oota
patent: 4551611 (1985-11-01), Longo
patent: 4572060 (1986-02-01), Yung-Kuan
patent: 4665808 (1987-05-01), Pulvermuller
patent: 4745852 (1988-05-01), Sager

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