The sensor device (100) has a sensor which monitors the viscosity and/or the specific volume of the windscreen washing liquid, for providing a signal for activation of a heating device when the actual viscosity or specific volume differs from the required ...

The thermostat casing (6) is arranged within the heater casing such that it (6) intersects the contact plate (3, 4) planes. The bimetallic thermostat switches on automatically at -2[deg]C and off at +5[deg]C. The design is generally cylindrical-symmetrical...

The heating device (1) for a gaseous or liquid medium has two contact plates (5,6) between which is a disc-form heating element. The housing (2) for the contact plates has at least one retaining pin fitting through openings (12) in the contact plates. The ...

The spring components (4) are curved, preferably-corrugated leaf springs. Plastics locating components form part of the detailed design and the heater is injection-molded into another component.