Dispenser device and cartridge for volatile substance with rate

Fluid sprinkling – spraying – and diffusing – Slow diffusers – Liquid supply in absorbent or porous media only

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Details

239 57, 239136, B05B 124, A61L 902

Patent

active

051159759

ABSTRACT:
A replaceable cartridge for a diffusion device for a volatilizable substance includes a primary control of diffusion rate of the substance into the surrounding atmosphere. The cartridge includes a base and a cover, and a membrane separating the cartridge into two chambers. The membrane has characteristics for controlling the rate of passage of a vaporized form of the substance from a first chamber, wherein the substance is stored, to a second chamber. A vent structure in the cover provides control over diffusion of the vaporized substance to the atmosphere. The diffusion device may include a heater or other catalyst device for imparting energy to the cartridge, thereby to volatilize the substance, and a timing circuit for control of heater operation. Additionally, the device may include a structure to assist proper placement of the cartridge adjacent the catalyst device by sensing at least a partial insertion of the cartridge and by automatically completing the insertion and positioning process thereof.

REFERENCES:
patent: 3990848 (1975-12-01), Corris
patent: 3993444 (1976-11-01), Brown
patent: 4229415 (1980-10-01), Bryson
patent: 4571485 (1986-02-01), Spector
patent: 4634614 (1987-01-01), Holzner
patent: 4695434 (1987-09-01), Spector
patent: 4753389 (1988-06-01), Davis
patent: 4809912 (1989-03-01), Santini

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