Electric warmer with a current sensor

Details Electric warmer with a current sensor Electric warmer with a current sensor

2006-02-21

2006-02-21

Pelham, Joseph M (Department: 3742)

Electric heating

Heating devices

Plural separate heating devices

C219S432000, C219S435000, C219S441000, C219S497000, C219S504000, C422S285000

Reexamination Certificate

active

07002111

ABSTRACT:
The present invention relates to an electric warmer for heating a container by means of a heat transfer medium. The warmer comprises a jar into which the container can be inserted for heating, and an electric heating device comprising at least one resistance heating element for heating the heat transfer medium. To indicate an improved electric warmer of the above-mentioned type in which power can be supplied in a particularly efficient manner while the control device can be configured at particularly low costs at the same time, the warmer comprises a sensor element for measuring the current flowing through the resistance heating element during operation of the heating device, and a control unit configured in such a manner that it detects a typical change in the current flowing through the resistance heating element due to a change in the state of aggregation of the medium to be heated, and controls power supply to the resistance heating element in dependence upon the state of aggregation of the medium to be heated.

REFERENCES:
patent: 3187164 (1965-06-01), Andrich
patent: 3347618 (1967-10-01), McKeown
patent: 3375774 (1968-04-01), Fujimura et al.
patent: 3584196 (1971-06-01), Kurokawa et al.
patent: 4177375 (1979-12-01), Meixner
patent: 4716278 (1987-12-01), Cappe et al.
patent: 4759189 (1988-07-01), Stropkay et al.
patent: 5773795 (1998-06-01), Messmer
patent: 6222989 (2001-04-01), Lee
patent: 6661967 (2003-12-01), Levine et al.
patent: 2004/0069769 (2004-04-01), Carr
patent: 10214905 (2003-12-01), None
patent: 1513453 (1968-02-01), None

Affiliated with

Also associated with

Rating

Electric warmer with a current sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric warmer with a current sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric warmer with a current sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3683840