Fluid sprinkling – spraying – and diffusing – Slow diffusers
Patent
1996-06-28
1998-08-04
Weldon, Kevin
Fluid sprinkling, spraying, and diffusing
Slow diffusers
F17C 1300
Patent
active
057881553
ABSTRACT:
This invention provides an air freshener dispenser device which consists of twin cartridges which are connected end-to-end with a flexible hinge means. The two cartridges can be folded together and incorporated in a dispensing holder as multiple refill units. Each cartridge is composed of a shallow tray which contains a volatile air freshener medium, and which has its open surface sealed with a coextensive bonded laminate of an inner vapor-permeable membrane and an outer peelable vapor-impermeable membrane. Removal of the peelable vapor-impermeable membrane sealing the two trays allows delivery of the air freshener medium as vapor into the environment at a controlled rate over an extended period of time.
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Martin John
Rosplock Joseph M.
S. C. Johnson & Son Inc.
Weldon Kevin
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