Abstract:
The invention refers to a container (1) for volatile substances having a first chamber (2) containing a porous material (4) impregnated with a first volatile substance, and a second chamber (3) containing a second volatile substance. The evaporation of the first and the second volatile substances is synchronized so that both volatile substances are finished substantially at the same time. The second volatile substance is used as a visual indication of the end of life of the first substance. The open base of the first and the second chamber are covered by a permeable film. The container may be arranged with a heater for the volatile substances.
Abstract:
The present invention refers to a tablet (1) for retaining a volatile substance in a liquid or solid state, such as a perfume and/or an insecticide. The tablet comprises at least a first and a second layers (2,4) of volatile substance retaining material, said first and second layers being spaced apart from each other at a selected distance, and wherein it further comprises a layer of impermeable material (3) joined to said layers and located in between said first and second layers.
Abstract:
The invention provides a retainer system for retaining a positive temperature coefficient resistor in a heater housing shaft having a shaft side wall. The retainer system includes a base, a spring, and shaft engagement means. The spring is formed in and spaced apart from the base. The spring extends radially outwardly from a longitudinal axis of the base and the spring has a neck that curves radially backwardly, spaced apart from the base and toward the longitudinal axis of the base. The spring also has a contact surface presented outwardly, away from the base. The shaft engagement means are for engaging the shaft side wall and securing the base within the shaft at a desired distance from the resistor. The retainer system can be secured within the shaft with the spring flexed to a desired extent and with the contact surface urged against the resistor to retain the resistor in the shaft.