Devices for controlled release of vapors

Details Devices for controlled release of vapors Devices for controlled release of vapors

1975-09-26

1977-04-12

Ward, Jr., Robert S.

Fluid sprinkling, spraying, and diffusing

Slow diffusers

With wick or absorbent means removing liquid from holder

239 53, 43129, 261 99, 206 5, 312 3104, 222 3, 222187, A61L 904, A24F 2500

Patent

active

040170306

ABSTRACT:
A device for controlling the release of vapors such as insect attractants, insecticides, and other vapors such as flower fragrances (the release being a timed matter in accordance with a predetermined configuration of the device), consisting of a microdispenser for accurately controlled dissemination of vaporizable materials comprising an elongated conduit of regulated cross-sectional area and length, and a vaporizable substance enclosed in said conduit. The filamentary conduit has one open and one closed end. In another variant, a filamentary conduit can be sealed between two open ends to provide a pair of end-to-end closed end conduits. The vapor producing substance is placed in the capillary conduit by suitable means. A single filamentary tube may be used, or a plurality of such tubes together. Liquid is contained within the conduit against the action of gravity and vibrations.

REFERENCES:
patent: 1259911 (1918-03-01), Seibert
patent: 1472063 (1923-10-01), Goldsmith
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patent: 2698767 (1955-01-01), Hartmann
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patent: 2975853 (1961-03-01), Friend
patent: 2979268 (1961-04-01), Brun
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patent: 3211345 (1965-10-01), Geiger
patent: 3379855 (1968-04-01), Forrester et al.
patent: 3596833 (1971-08-01), Gould

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