Arthropod repellent or attractant liquid reservoir with fill indicator
AssigneeEnergy Related Devices, Inc.
InventorRobert G. Hockaday
Life of this patent
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Abstract
A progressive liquid fill capacity indicator located inside a vapor diffusion membrane liquid reservoir that utilizes index refraction matching of liquid contact to components, dyes, and surface tension gradients. This fill capacity indicator is low cost and reliable. It enables users to visually assess readiness and remaining liquid capacity to deliver attraction, masking, and repulsion scent vapors from wearable and stationary devices to repel or attract mosquitos and arthropods.
Claims18
An apparatus comprising a scent vapor delivery liquid reservoir containing a scent liquid, with some or all walls of the reservoir comprising a membrane that is molecular diffusion permeable to the contained scent liquid whereby the membrane emits scent vapor to surrounding air, wherein some or all of the walls of the reservoir are transparent to light, and wherein the reservoir further comprises an interior surface having a surface tension energy gradient for the scent liquid contained within the reservoir, such that when in contact with the scent liquid, the interior surface transmits incident light, and changes light reflectivity and emission when there is less liquid therein, enabling the scent liquid volume contained by the reservoir to be gauged by the light reflectivity and emission viewed outside of the reservoir.
Dependencies are inferred from the claim text.