Semi-enclosed gel delivery device

Details Semi-enclosed gel delivery device Semi-enclosed gel delivery device

2006-02-07

2006-02-07

Sherbel, David A. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Slow diffusers

C239S041000, C239S042000, C239S047000, C239S055000, C239S058000

Reexamination Certificate

active

06994270

ABSTRACT:
A dispenser of actives having a linear release rate may be achieved by providing a volatile containing gel system wherein the gel system is proportioned in specified dimensional ratios, so that the sum of the rate of volatile release from directly exposed areas of the surface of the gel system and the rate of volatile release from areas of the surface of the gel system which are not in direct exposure to the atmosphere remains essentially constant through out the life of the dispensing device.

REFERENCES:
patent: 2733956 (1956-02-01), Wenner
patent: 3239145 (1966-03-01), Russo
patent: 3910495 (1975-10-01), Cummings et al.
patent: 4157787 (1979-06-01), Schwartz
patent: 4809912 (1989-03-01), Santini
patent: 5060858 (1991-10-01), Santini
patent: 6631852 (2003-10-01), O'Leary
patent: 778600 (1957-07-01), None
patent: 1359447 (1974-07-01), None
patent: WO 00/24434 (2000-05-01), None

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