S. C. Johnson Son, Inc.

Adam Hagop Buchaklian

Padma Prabodh Varanasi

Robert J Kopanic

Stanley J Flashinski

Murthy S Munagavalasa

David J Houser

Kara L Lakatos

Stacey L Forkner

Kara L Kotary

A wick-based delivery system includes a container for holding a liquid that has an opening therein. A porous wick is positioned in the container so that a lower region of the wick is in contact with the liquid in the container and an upper region of the wick is exposed to the ambient air. The porous wick has discrete inner and outer concentric cylindrical sections, the inner cylindrical section being made of a sand-based material and the outer cylindrical section being made of a plastic material.

Wick-based delivery system with wick made of different composite materials

A composite wick for delivering two liquids with different properties to a surface includes a first section provided for delivering a first liquid to the surface of the wick and a second section provided for delivering a second liquid to the surface of the wick. Preferably, the first section is made of hydrophobic materials and the second section is made of hydrophilic materials. Also, a composite wick includes a first section made of either a porous ceramic-based material or a porous sand-based material and a second section made of a porous plastic material, wherein the first and second section preferably are formed as concentric cylinders, with the first section being disposed within the second section.

A time duration of end of product life indicator is disclosed which utilizes a volatile dye coated or impregnated into a substrate or carrier. The dye evaporates as a volatile component of the product evaporates thereby changing the color of the substrate or carrier. The consumer is alerted to the depletion of the volatile component of the product when the substrate or carrier changes from a colored or dyed state to an uncolored state. As a result, a visual time duration or end of product life indicator is provided.

End of use and time duration indicator system and method based on volatile dye

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Jackson, WI, United States of America

Adam Hagop Buchaklian