Two-stage metering pin
US5193485A · kind A · utility
11Cited by
21References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1990 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Sep 10, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K39/0213
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A metering pin is provided having two portions of different external configuration, each of which portions are insertable into the fluid flow path for restricting fluid flow under different actuating conditions. These two portions can be dimensioned to be readily retrofit into various existing nipple drinkers according to the configuration of the drinker inlet. The specific dimensions of each portion relative to the drinker inlet can be selected according to desired flow rates at different levels of poultry growth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.