The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 2002
Filed:
Aug. 23, 2000
David Gray, County Donegal, IE;
Other;
Abstract
A method of determining the weight of animals and the development of plants in a controlled environment. The method includes measuring the increase in CO production over a test period. CO production is a measure of the metabolic rate and this is related to weight of animals and development of crops which can often be determined by weight. There is illustrated a poultry rearing house having vents, lights and an air heater. CO sensors are connected to a CO controller and in turn to a central controller. To test the increase in CO production over time, the birds are settled into a passive state with no feed and the lights turned off. The level of CO produced is measured. The vents are closed. After a time, the rate of Co produced is measured and the increase calculated.