Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Air purification system using cryogenic techniques










Image Number 2 for United States Patent #4337071.

An on-site apparatus that produces cryogenic temperatures is used to remove, by condensation, all pollutants in the air so that an ultra clean air supply is obtained for human consumption in the interior of living enclosures, such as automobiles, homes, offices, hospitals etc. In accordance with one embodiment of the invention, it can recycle the air in the enclosure, i.e. resupply the oxygen consumed by the human being and remove the carbon dioxide produced by respiration. The cryogenic temperatures are produced by a closed-cycle operated refrigeration system consisting of a compressor, a Joule-Thompson valve (JTV), multi-stage heat exchangers and expanders. Cold traps (filters) of different cryogenic temperatures are built into the system to condense pollutants of different condensation temperatures. The condensed pollutants can be disposed of by periodical defrost and purge of the system.








 
 
  Recently Added Patents
Caprazene as a novel compound and derivatives thereof, and caprazol as a novel compound and derivatives thereof
Light emitting device
Polynucleotide capture materials, and methods of using same
System and method for multi-threaded MIMO OFDM channel equalizer
Semiconductor device
High conductive water-based silver ink
Apparatus and method for performing lawful intercept in group calls
  Randomly Featured Patents
Device and method for evaporating a reactant
Device for automatic tonal accompaniment in electronic musical instruments
Polymer-inorganic particle composites
Semiconductor structure and method of manufacture
Auto-parking device
Stereo X-ray inspection apparatus and method for forming three-dimensional image through volume reconstruction of image acquired from the same
Quantum collector hot-electron transistor
Electromagnetic gun launcher
Flexible router height-adjustment mechanism
Radon progeny detector