1.-4. Passive diffuser device for releasing insecticides

Abstract

1. The design consists of an elongated device with an overall vertically oriented structure; The upper section features a rectangular frame with an open central area and an inward-facing angled projection; Within the frame, there are internal reinforcing elements and a small protrusion extending horizontally;On both lateral sides, there are vertical flat extensions aligned with the main body; The lower section of the device transitions into a wider, curved surface that tapers gradually towards the bottom end, forming a rounded termination; The rear and front surfaces of the lower part are slightly convex.; 2. The design consists of a vertically oriented device with a symmetrical overall shape; The upper part comprises a rectangular open frame with an inward-facing angled projection and internal cross-bracing features;On either side of the central body, there are vertical flat extensions; The lower part of the device is divided into two downwardly extending, curved portions with slightly convex front and rear surfaces; These two portions are separated by a recessed central area; Each lower portion terminates in a rounded bottom edge.; 3. The design consists of a vertically oriented device with a circular ring top structure with an opening on one side; The ring is attached to a conical central body that extends downward; Just below the ring are three parallel, horizontally ribbed elements arranged on the front surface;On each side of the central body, there is a protruding flat element that extends outward; The lower part of the body is slightly curved and ends in a rounded, angular shape.; 4. The design consists of a vertically oriented device with a circular ring top structure containing an opening on one side; Below the ring, the body extends downward and outward, forming a generally symmetrical shape;The center section of the body features a series of grooved vertical elements on the front surface, while the area directly below the ring includes three horizontal grooves; On each side, there is a protruding flat extension; The bottom of the device is divided into two curved segments separated by a central recess; Each lower segment ends in a rounded bottom edge.

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