Nitrogen Sorbed Patents (Class 95/130)
  • Patent number: 5248320
    Abstract: A method of compressing oxygen includes passing the oxygen into a vessel 12 containing finely divided material. Next a driving gas, for example, air is compressed to a greater pressure than the oxygen and passed through the vessel 12 and the bed of material contained therein which creates a plug flow effect such that the oxygen is compressed by the air substantially without back-mixing.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: September 28, 1993
    Assignee: The BOC Group plc
    Inventors: Michael E. Garrett, Alberto LaCava