Patent ID: 6421501
Filing Date: 2002-07-16
Classification: H05B

Abstract:
A heater for resistive heating of a liquid, the heater comprising a stack of parallel superposed plates, said plates comprising conductive plates and non-conductive spacer plates that are applied onto one another in a liquid-tight manner and that define consecutive heater chambers, wherein each heater chamber comprises two conductive plates and at least one spacer plate between said two conductive plates, a liquid inlet slot formed in one of said two conductive plates, an inlet channel formed at a first end of said spacer plate and communicating with the liquid inlet slot, an outlet channel formed at a second end of the spacer plate opposite to the first end, a liquid outlet slot formed in the other of said conductive plates and communicating with the outlet channel, and a central aperture formed in the spacer plate and communicating with the inlet and outlet channels, so that the liquid passing through the heater chamber flows parallel to the conductive plates in the central aperture of the spacer plate and is in contact with the conductive plates.