Vapor-emitting device with end of use indicator

Details Vapor-emitting device with end of use indicator Vapor-emitting device with end of use indicator

2007-05-03

2009-10-13

Ganey, Steven J (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Slow diffusers

With empty or refill signal or indicator

C239S034000, C239S060000, C239S071000

Reexamination Certificate

active

07600697

ABSTRACT:
A vapor-emitting device according to various embodiments of the invention includes an end of use indicator to visually warn a user that it is nearing the time and/or has reached the time to replace the vapor-emitting device or refill the device. The vapor-emitting device includes a cover that is displaceable relative to a base. A gel material is contained within the base having disposed therein an end of use indicator. The end of use indicator is configured to visually indicate when the gel material evaporates below a pre-determined level.

REFERENCES:
patent: 3104816 (1963-09-01), Jaffe
patent: 5163616 (1992-11-01), Bernarducci et al.
patent: 5180107 (1993-01-01), Lindauer
patent: 5647052 (1997-07-01), Patel et al.
patent: 7033990 (2006-04-01), Dundale et al.
patent: 7159792 (2007-01-01), Wheatley et al.
patent: 2003/0175172 (2003-09-01), Altmann
patent: 2006/0100303 (2006-05-01), Bedford et al.
patent: 2006/0102738 (2006-05-01), Gusenoff et al.

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