Resources Contact Us Home
Device for testing air for microorganism content

Image Number 4 for United States Patent #4663293.

In a device for testing air for microorganism content with a rapidly rotating impeller inside a cylinder that has a backing sheet coated with culture medium against its inside surface, microorganisms that vary more extensively in size can be detected with almost equal effectiveness, the throughput of air can easily be determined, and the precipitation effect can be precisely tested because the backing sheet rotates along with the impeller, the blades of the propeller are at a low angle to the plane it rotates in, the air enters at a location that is separate from the location at which it leaves, through inlets from above and down and out through outlets, and the inner surface of the rotor below the impeller chamber is in the form of a channeling cylinder.

  Recently Added Patents
Method and system for dynamic storage tiering using allocate-on-write snapshots
Method and apparatus to select a profile of a digital communication line
Visual universal decryption apparatus and methods
Ice data collection system
Signal processing device, signal processing method and program
Comparison of visual information
  Randomly Featured Patents
System and method for communicating data in locomotive consist or other vehicle consist
Gas flow chamber for use in atomic absorption and plasma spectroscopy
Solid bridge kit
Antifungal azole derivatives having a fluorinated vinyl group and process for preparing same
LED light modules and outdoor light fixtures incorporating such light modules
Tapered airsleeve curing press
Bag filling device
Helical split ring french fry and apparatus for making the same
ZSM-5 additive
Seating apparatus