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Apparatus and method for forming oxygen-enriched gas and compression thereof for high-pressure mobile storage utilization

  • US 6,302,107 B1
  • Filed: 09/16/1998
  • Issued: 10/16/2001
  • Est. Priority Date: 10/01/1997
  • Status: Expired due to Term
First Claim
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1. An apparatus for compressing and storing an oxygen-enriched gas, comprising;

  • an oxygen concentrator product tank having enriched oxygen therein, a motor driven compressor operatively connected to said oxygen concentrator product tank to receive oxygen-enriched gas therefrom, said motor driven compressor operated independently of an oxygen concentrator power source and operated by a power source other than oxygen-enriched gas from said concentrator product tank, said motor driven compressor being capable of compressing said oxygen-enriched gas to a high pressure, said motor driven compressor containing a plurality of pistons, wherein a first piston is driven by a first drive shaft and a second piston is driven by a second drive shaft, and a high-pressure storage container operatively connected to said motor driven compressor for portable storage of said high-pressure oxygen-enriched gas, wherein said first piston is a wobble piston and wherein said second piston is a non-wobble piston, wherein said wobble piston compresses said gas from a first pressure to a second pressure and wherein said non-wobble piston compresses said gas from said second pressure to a third pressure.

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