Abstract: The device is based on an optionally single piece body (1), obtained by plastic molding, of cylindrical configuration, with the opening and the corresponding axial and central neck (3) for the passing of a wick that, at its lower end, is immersed in an active substance contained in a vessel to which the device is applicable, having optional ribs (4) for holding and positioning the wick heating resistances, as well as projections (6) with cross channels (7) for the positioning of the ends of the electrical resistances wires, being supplemented with a piece (8) acting as a clip, that by means of a flap or arm (9) formed in it, the ends of the resistances are kept in the flutings (7), and allows the positioning of the contactors through which the electrical supply to those heating resistances is set up, a positioning that is carried out on an upper slot (10) set up in that piece (8) which has contactor connection flaps (11), and optionally a cover that assures a more reliable fastening by pressing on the upper e

Abstract: An electric heating device releases active substances and has a housing (1) and cover (3) with holes (2) and (4) to receive a wick that is to be heated and soaked in a liquid that is to be evaporated. The housing (1) receives a pill-shaped PTC element (5) which is pressed between two electrodes (6) and (7) having a high heat conducting coefficient. The device has a small number of parts, and, with electrodes of suitable material and structure, provides a uniform heating of the round body which receives the wick.

Abstract: A housing within which a resistor is arranged is connected to two connections projecting through the bottom of the housing. The housing is further provided with an aluminum plate serving as a radiator which is held inside at the top of the housing, held by strips in the latter. The housing and the aluminum plate are provided with a hole through which a wick may pass to project through the mouth of a container holding liquid product to be vaporized by heating the wick through the resistor. A frame-like spacer element is arranged on the housing and fixed thereto, defining a supporting surface for a tablet, which tablet may be spaced to a greater or lesser extent by the spacer element in order for said tablet to be reached at all times by the appropriate heat to be full efficiently vaporized.

Abstract: A device is disclosed meant to perform evaporation of insecticides, perfumes or the like, wherein the degree of evaporation is controlled by a moving cap (9) which makes up the regulating element (6), which is meant to produce a chimney effect in the upwards motion of the generated vapor, so that this effect enhances evaporation, while regulation is achieved by the different heights at which moving cap (9) can be placed. This displacement is performed manually by moving guide (13) inside inclined track (10).