Gas separation: apparatus – With means to add fragrance or scent
Patent
1999-01-21
2000-09-12
Simmons, David A.
Gas separation: apparatus
With means to add fragrance or scent
428905, 422123, 261DIG17, A61L 904
Patent
active
061172189
ABSTRACT:
A scenting device for attachment to an air filter in a HVAC system. The scenting device comprises a sheet formed from a material that is substantially impervious to air. The sheet is cut so as to form at least one opening through which the air to be scented flows. The opening is preferably serpentine and defines a plurality of fingers in the sheet. A relatively thick layer of a high viscosity liquid, such as a gel, containing a fragrance is deposited onto the sheet. The device is made by partially cutting through the sheet so as to form a zone of weakness having the shape of the intended opening. After the fragrance-containing material is deposited on the sheet, it is packaged and slipped to the user. The user tears the sheet along the zone of weakness, thereby forming the opening.
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Robinson Gary A.
Snyder Michael R.
Lawrence Frank M.
Simmons David A.
Web Products, Inc.
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