초록 ▼

A valve free oxygen concentrator includes first and second nitrogen filters. Air is pumped into and through the first filter while the second filter is simultaneously evacuated. Alternately, air is pumped into and through the second filter while the first filter is simultaneously evacuated. The filt

A valve free oxygen concentrator includes first and second nitrogen filters. Air is pumped into and through the first filter while the second filter is simultaneously evacuated. Alternately, air is pumped into and through the second filter while the first filter is simultaneously evacuated. The filters extract nitrogen from the air pumped therethrough to produce concentrated oxygen. The extracted nitrogen is subsequently exhausted from the filters. The concentrated oxygen is directed from the filters to a patient or other destination that requires concentrated oxygen.

대표청구항 ▼

[ What is claimed is:] [1.] An oxygen concentrator comprising:first and second nitrogen filters;a first rotary compressor that is communicably connected to said first filter and a second rotary compressor that is communicably connected to said second filter; anda single reversible motor, which motor

[ What is claimed is:] [1.] An oxygen concentrator comprising:first and second nitrogen filters;a first rotary compressor that is communicably connected to said first filter and a second rotary compressor that is communicably connected to said second filter; anda single reversible motor, which motor is operably connected to both said first rotary compressor and said second rotary compressor, said motor driving said first compressor in a forward direction to pump air into and through said first filter while simultaneously driving said second compressor in a reverse direction to evacuate said second filter, and alternately driving said first compressor in a reverse direction to evacuate said first filter while simultaneously driving said second compressor in a forward direction to pump air into and through said second filter, whereby said filters alternately extract nitrogen from the air pumped therethrough to produce concentrated oxygen, and the extracted nitrogen is alternately exhausted from said filters by said first and second compressors.