Self-contained estrous detection tag
US4455610A · kind A · utility
16Cited by
7References
11Claims
0Family size
Inventor
Key dates
| Filing date | Feb 4, 1982 |
| Grant date | Jun 19, 1984 |
| Priority date | — |
| Expiry date | Feb 4, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2503/40
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tag suitable for attachment to an animal includes a programmed microprocessor which monitors the activity of the animal. Activity is measured by counting the closures of a mercury switch, and when the current activity exceeds a reference activity by a preset amount, a light emitting diode is energized. Four light emitting diodes are provided to indicate four separate levels of activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.