Livestock waterer and method
US4986221A · kind A · utility
Inventor
Key dates
| Filing date | Oct 21, 1988 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Oct 21, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K7/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An animal waterer comprises a bowl having an open top and a bottom drain, and a valve is operatively associated with the drain for selectively blocking and unblocking the drain. A water supply line cooperates with the valve and is operably associated with the bowl for supplying water to the bowl when the valve blocks the drain so that the bowl thereby fills with water and for causing water to drain from the bowl when the valve does not block the drain. A sensing system is operatively associated with the bowl and with the drain for causing the valve to block the drain when the presence of an animal is sensed so that the bowl is thereby filled with water for the animal to drink and for causing the valve to unblock the drain when no animal is sensed so that the bowl is drained of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.