Methods and devices for depopulating avian species
US7435166B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2007 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Jan 17, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA22B3/086
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of depopulating livestock is provided. The method comprises restricting the livestock in a defined space, and depositing foam into the defined space, forming a foam blanket covering the livestock. The livestock can be avians, such as chickens, ducks, and turkeys. A device for making medium expansion foam comprising a high expansion foam generator having a fan, and a shroud shielding the fan from ambient air intake. The shroud limits the amount of ambient air incorporated into the foam during operation. The device can include an alternative gas input positioned to direct an alternative gas to the fan. The alternative gas is selected from the group consisting of carbon dioxide, nitrogen, argon, and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.