Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Systems and methods for a signed magnitude adder in one's complement logic
Fire detector
Rules-based approach to transferring and/or viewing medical images
Method of providing tailor-made software for hospital departments
Method for generating codewords
Selection of system parameters based on non-acoustic sensor information
Transcription factor
  Randomly Featured Patents
Copper/low dielectric interconnect formation with reduced electromigration
Optimized connection admission control for systems using adaptive modulation and coding techniques
Apparatus for jet soldering containers
Semiconductor package including flex circuit, interconnects and dense array external contacts
Determining metrology sampling decisions based on fabrication simulation
Chroman derivatives and a method of treating 5-HT mediated disorders
Methods of programming nonvolatile memory cells by floating drain or source regions associated therewith
Coating agent composition and composite film
Integrated overlay system for mobile devices
Plant phytase genes and methods of use