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
Controller with screen
Soybean sequences associated with the FAP3 locus
Soybean cultivar CL1013663
Wireless network device including a polarization and spatial diversity antenna system
Low-complexity motion vector prediction systems and methods
Tube lighting fixture
Plants and seeds of hybrid corn variety CH260114
  Randomly Featured Patents
Chip card
Module with adhesively attached heat sink
Method for measuring the sagging of a glass panel
Plastic cup having partially external tear groove
Linear actuator comprising a brushless polyphase electric motor
Heat exchanger, water heater and water tube
Carrier synchronizing unit
Brake band for automatic transmission
Controller of automatic transmission having a lockup clutch and control method of the automatic transmission
Sustained and controlled release of water insoluble polypeptides