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
Bicyclic azaheterocyclic carboxamides
Systems and methods for updating a data store using a transaction store
Wind farm, wind power plant in a wind farm and operating control for this purpose
Apparatus for generating electrical energy from rocking activated energy
System and method for broadcasting rich media to devices over multiple carriers
Dental composition, kit of parts and use thereof
Fuel cell module, manufacturing method thereof and unit containing several of the latter
  Randomly Featured Patents
Multilevel storage nonvolatile semiconductor memory device enabling high-speed data reading and high-speed data writing
Blob representation in video processing
Process for preparation of water absorptive composite material
Method of recovering CO-rich exhaust gas in refining of metal
Directed cell-based therapy using microbubble tagged cells
Intertwined finger capacitors
Nonvolatile memory
Electrochemical uses of amorphous fluoropolymers
Coordinate detecting device, writing instrument, and coordinate inputting system
Gimbal assembly