Fluid sprinkling – spraying – and diffusing – Slow diffusers
Patent
1977-09-29
1978-12-19
Saifer, Robert W.
Fluid sprinkling, spraying, and diffusing
Slow diffusers
239 56, A61L 904
Patent
active
041302451
ABSTRACT:
Disclosed herein is a generally flat envelope or package for controllably dispensing into the atmosphere a liquid substance which is normally liquid and vaporizable under atmospheric temperature and pressure conditions. The package includes two sheets which are made of flexible material permeable to the liquid substance and are peripherally sealed to each other in opposing relation to form a hermetically sealed chamber encapsulating the liquid substance. The interior surfaces of the chamber walls are joined together at a plurality of parallel, transversely spaced locations to divide the chamber into a plurality of smaller elongated chambers having wall portions which, although flexible enough to collapse under atmospheric pressure in response to permeation of the liquid substance therethrough, are sufficiently rigid to minimize outwardly bulging thereof by the liquid substance when the package is in a nonhorizontal position and to encourage surface contact of the entire interior surfaces of the smaller chambers with the liquid substance as it permeates to the surrounding atmosphere.
REFERENCES:
patent: 2132554 (1938-10-01), Baldwin
patent: 3623659 (1971-11-01), Maierson
patent: 3774850 (1973-11-01), Zeman
patent: 3785556 (1974-01-01), Watkins
Saifer Robert W.
Will Ross Inc.
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