Foods and beverages: apparatus – Beverage – Infusors
Patent
1987-12-11
1988-08-09
Jenkins, Robert W.
Foods and beverages: apparatus
Beverage
Infusors
99280, 219308, A47J 3142, A47J 3152
Patent
active
047620552
ABSTRACT:
A coffee maker includes a water reservoir, a drip case for containing coffee powder, a heating pipe for heating water fed from the water reservoir through one of two ends thereof and for feeding hot water to the drip case from the other end, a heater for applying heat to the heating pipe through a heat-transferring plate to cause the hot water to flow through the heating pipe to the end communicating to the drip case, by the force of boiling pressure, a temperature sensor for sensing the temperature of the heat-transferring plate, a first comparator for deciding a time period required to increase the temperature of the heat-transferring plate to reach a predetermined value, in response to a decision signal from the temperature sensor, and a second comparator for comparing the time period decided by the first comparator with a predetermined value to produce an alarm signal in case that the time period decided by the first comparator takes a smaller value than the predetermined value. Accordingly, when the effective cross sectional area of the heating pipe is decreased to a large extent owing to the affixing of the incrustations and the like, a user is automatically alarmed.
REFERENCES:
patent: 4330702 (1982-05-01), Cheng
patent: 4418614 (1983-12-01), Oota
patent: 4566374 (1986-01-01), Medema
patent: 4638147 (1987-01-01), Pytch
Jenkins Robert W.
Kabushiki Kaisha Toshiba
LandOfFree
Coffee makers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coffee makers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coffee makers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-912518