Patent ID: 6298596
Filing Date: 2001-10-09
Classification: A01M

Abstract:
A system for controlled diffusion of vaporizable active substances in cultivation and in defense against parasites in agriculture, which comprises a diffuser in the form of ribbon or filament, joined at the ends thereof to create an endless closed-circuit line positioned within an environment of a subject of the diffusion along a predetermined path, said diffuser being slidable along the path and movable by traction mechanisms, and being charged with the active substances directly by a charging apparatus positioned along the path of the diffuser and comprising distributors able to transfer quantities of the active substances to be vaporized onto portions of defined segments of the movable ribbon or filament used as the diffuser, said segments effecting diffusion of a single substance and being locatable on the ribbon or filament by sensors for indicators printed on the ribbon or filament in other segments, the movement of the diffuser relative to the distributor within the segment of the ribbon or filament being similarly measurable, the quantity of active substance deposited on the diffuser being adjustable, grossly and discontinuously, by varying a mechanical structure of the distributor, and adjustable, finely and continuously, by regulating time involved in distributing the active compound on the diffuser and the speed of advancement of the diffuser, whereby both the movement of the diffuser ribbon or filament, and the time of operation of the individual distributors in distributing active substance onto the diffuser, by a microprocessor using predefined time programs having as variables environmental parameters measured by sensors connected to the microprocessor.