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
Method and apparatus for managing network traffic
Solar energy converter with improved photovoltaic efficiency, frequency conversion and thermal management permitting super highly concentrated collection
Non-visual presentation of information on an electronic wireless device
Methods and apparatus for providing video on demand and network PVR functions using IP streaming
Plants and seeds of hybrid corn variety CH336383
Discharge lamp comprising coated electrode
Multilayered ceramic electronic component and fabrication method thereof
  Randomly Featured Patents
Junction field effect transistor with a hyperabrupt junction
Rotational atherectomy system with stationary cutting elements
Resealable closure system
Adapter construction for arbor installation of tooling
Trick mode VTR which generates trick play data from a stream of images containing intra-pictures and predictive pictures and selects specific DCT coefficients for intra-pictures
Factory traffic monitoring and analysis apparatus and method
D-dimensional, fractional bandwidth signal processing apparatus
Systems and methods for reducing IR-drop noise
Motor-operated pump of in-tank type
Lubricant pressure compensator for an earth boring drill bit