Dispenser having piezoelectric elements and method of operation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 23, 2010
Grant Date -
Oct 7, 2004
app pub date -
Apr 1, 2003
filing date -
Apr 1, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dispenser is provided. The dispenser has a reservoir for storing a liquid or solid material. The dispenser may have a piezoelectric valve or pump located in an opening of the reservoir for regulating dispensing of the material. Alternatively, the dispenser may have a piezoelectric inchworm that directly or indirectly propels the material against or out of the opening. The opening may deposit the material directly or indirectly on the surface of an animal, or under the animal's skin. The dispenser also can be attached to the surface of the animal. Alternatively, the dispenser may be placed inside the animal.
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