Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Crop weighing










Image Number 8 for United States Patent #6449896.

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.sub.2 production over a test period. CO.sub.2 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.sub.2 sensors are connected to a CO.sub.2 controller and in turn to a central controller. To test the increase in CO.sub.2 production over time, the birds are settled into a passive state with no feed and the lights turned off. The level of CO.sub.2 produced is measured. The vents are closed. After a time, the rate of Co.sub.2 produced is measured and the increase calculated.








 
 
  Recently Added Patents
Systems and method for automatic color plane misregistration calibration
ASICs having programmable bypass of design faults
Laser protection polymeric materials
System and method for conditionally sending a request for data to a home node
Earphone
Display device substrate, method for manufacturing the same, display device, method for forming multi-layer wiring, and multi-layer wiring substrate
Discharge lamp lighting circuit
  Randomly Featured Patents
Portable sign display device
Alstroemeria plant named `Zanysia`
Gun trigger lock
Network based print driver configuration
Method and device for attracting insects
Fuel preheater for a piston internal combustion engine with heat vaporization of the fuel
Method and apparatus for limiting interference between satellite systems
Apparatus and method for measuring characteristics of optical fibers
Qualitative immunochromatographic method and device
Penile pump with side release mechanism