Abstract: An apparatus for the evaporation of active ingredients incorporated in cellulose or some other, at least approximately dimensionally stable carrier material has heating means arranged in a housing to evaporate the active ingredients. A support is provided for replaceably holding an active ingredient carrier above the heating means. The active ingredient carrier is in the form of a column and is optionally inserted replaceably, with its longitudinal dimension placed vertically, in a sleeve which is adapted in its form and dimensions to the active ingredient carrier and is open at the top and bottom. The sleeve is situated inside the housing and spaced apart from the wall of the housing on all sides, said housing having exhaust gas openings at the top.

Abstract: In order to improve an apparatus for the evaporation of active ingredients such as pyrethrum or similar insecticides, air-improving, bactericidal, disinfecting and/or, for example, curing substances incorporated in cellular boards or other solid carrier materials, consisting of a housing in which there is provided a heating means which is arranged behind a housing window, and of a holding means for the exchangeable arrangement of an active ingredient carrier panel in front of the housing window in such a way that an evaporation apparatus which is independent from electrical energy can be achieved while maintaining high reliability in handling, it is proposed that a catalytic, merely glowing, that is flamelessly acting burner 4 with fuel tank 3 be arranged in the housing 1 having ventilation openings 13 at such a distance from the housing window 2 that the hot waste gases from the burner 4 flow through the housing window 2 and activate the active ingredients.

Abstract: Means for adding disinfectant or the like to the flushing water of a WC comprise two layers, one of which is deep drawn to form a chamber. The other layer seals the chamber. The layer sealing off the chamber comprises a water-resistant material and is provided on at least one of its two surfaces with print or the like. A lower base portion of the chamber serves to enable the storage of the means in an upright position on a shelf or the like.

Abstract: Evaporator device for insecticides, perfumes and/or other volatile substances, having a housing containing ports, which has at least one receiving section in which a container for the active substances is inserted, and at least one opener associated with the container, while relative movement between the container and the opener can be performed for the opening of the container, and also, if desired, an element absorbing the active substances emerging from the container, an opening being provided in the casing (1,2) in the area of each receiving section (7), through which at least a portion of the wall (8) of the container (4) inserted in the receiving section (7) is exposed to the exterior.

Abstract: Vaporizer device for volatile active substances such as perfumes, insecticides and other volatiles comprising an upper part having openings therein and a lower part with an absorptive slab thereon, the lower part having a capsule filled with absorptive material disposed therein and which may be removed and replaced as desired and means for maintaining the upper and lower parts in operative relationship.

Abstract: A vaporizer for insecticides and other volatile active substances comprising a housing provided with openings and within which housing the active substances are hermetically enclosed. The vaporizer is preferably made of a plastic or other flexible material and may be carried out in various specific embodiments wherein the active substances, which may be toxic, are kept safely out of contact with humans and can be made available for their intended use in controlled and variable amounts. The active substances may be in a spherical or lenticular casing or housing and can be released from outside in a manner to be volatilized for insecticidal or other activity. There is a holder provided for absorption of the volatiles emerging from the casing after the latter is opened by a member actuable externally thereof for cutting the same.

Abstract: Vaporizers with flat wicks folded into U-shape within open-topped, laterally apertured generally prismatic casings, capped by complementary covers which are vertically slidable thereon to control the escape of a volatile liquid impregnating the wicks, are mass-produced on a plurality of assembly lines each comprising a wick-loading station, an impregnating station, an insertion station and a capping station. The dry and unfolded wicks are successively advanced from their loading station along an upper track past the impregnating station, where they are permeated with the liquid, to the insertion station in which a plunger thrusts each wick through a narrow central slit into an aligned casing waiting on a lower track, the wick being doubled in passing through the slit into the casing.