Reservoir for controlled active substance delivery, and apparatus containing the same
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United States of America Patent
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Mar 27, 2001
Issued Date -
N/A
app pub date -
Aug 31, 1995
filing date -
Mar 24, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to reservoirs with a delivery surface for the controlled delivery of active substances decreasing over the time of use to solid, liquid or gaseous acceptors and whereby at least at one point of the reservoir a cross-sectional surface of the reservoir is parallel to the delivery surface and smaller in area than the delivery surface. The invention also relates to an apparatus for the controlled delivery of active substances decreasing over the time of use, which has at least one reservoir. At least one active substance to be delivered is active in the technical, human and veterinary medical, cosmetic and pest control sectors.
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