Patent · US Active

System and method for stunning poultry with gas

US8323080B2 · kind B2 · utility

10Cited by

23References

5Claims

0Family size

Assignee

Praxair Technology, Inc. · US

Inventors

Gary D. Lang · Wooster, US
Narsimha R. Nayini · Burr Ridge, US
Bryce Mark Rampersad · Cheektowaga, US

Key dates

Filing date	Apr 11, 2008
Grant date	Dec 4, 2012
Priority date	—
Expiry date	Oct 10, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA22B3/005
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

System and method for controlled atmosphere stunning of chickens or turkeys in a batch mode is provided. The disclosed method includes the steps of: loading one or more batches of chickens or turkeys in a stunning chamber and sealably enclosing the stunning chamber to isolate the atmosphere therein. Carbon dioxide is then introduced to the isolated atmosphere in a series of three, four, five or more phases to humanely stun and eventually kill the poultry. The carbon dioxide containing atmosphere is subsequently forcibly exhausted from the stunning chamber and the ranks of cages or modules containing the stunned poultry are advanced to a subsequent processing station such as a tipper or dumping station.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.