Dispenser having piezoelectric elements and method of operation
US7682354B2 · kind B2 · utility
4Cited by
99References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 1, 2003 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Sep 22, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K13/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.