Apparatus and method for controlling output of an oxygen concentrator

An apparatus for controlling the concentration of oxygen from an oxygen concentrator employing a compressor motor means comprising:

• an oxygen concentration indicator having a pre-printed circuit board and an oxygen sensing means operatively connected to said circuit board for determining a concentration of oxygen in a gas sample;
• a plurality of set-point amplifiers operatively connected to said circuit board;
• a logic block operatively connected to said plurality of set-point amplifiers;
• a plurality of switching means, each one of said switching means being operatively connected to said logic block;
• and
• a plurality of control means, each one of said control means operatively connected to one of said switching means for regulating the degree of operation of said motor means.

An apparatus for controlling the concentration of oxygen from an AC motor-driven oxygen concentrator comprising:

• a pre-printed circuit board capable of converting an oxygen concentrated to a DC voltage;
• an ultrasonic gas measuring device for measuring a concentration of oxygen in a sample of air generated by such oxygen concentrator operatively connected to said circuit board;
• a plurality of set point amplifier means operatively connected to said circuit board;
• a logic block operatively connected to said plurality of set point amplifier means;
• a plurality of switching means, each one of said switching means being operatively connected to said logic block;
• and
• a plurality of winding taps located on such AC motor, each one of said winding taps being operatively connected to and capable of energization by one of said plurality of switching means.

An apparatus for controlling the concentration of oxygen from an oxygen concentrator comprising:

• an AC motor disposed to drive said oxygen concentrator;
• a plurality of winding taps on a motor winding of said AC motor capable of limiting the revolutions per minute of said motor;
• a plurality of solid state relays, each one of said solid state relays being operatively connected to one of said plurality of motor winding taps;
• a logic block operatively connected to said solid state relays, said logic block being capable of energizing one of said plurality of solid state relays at a time so that one of said winding taps is energized at a time;
• a plurality of set point amplifiers operatively connected to said logic block;
• an oxygen concentrator indicator circuit board operatively connected to said plurality of set point amplifiers, said circuit board capable of converting an oxygen concentration in a sample of air to a DC voltage;
• and
• an oxygen concentration sensor operatively connected to said circuit board, said sensor disposed to receive an air sample from such oxygen concentrator and determine a concentration of oxygen in said sample and relaying said concentration to said circuit board.

An apparatus for controlling the concentration of oxygen from an oxygen concentrator comprising:

• a linear motor disposed to drive said oxygen concentrator;
• a plurality of taps upon the linear motor and capable of limiting the stroke per minute of said motor;
• a plurality of switching means, each one of said switching means being operatively connected to one of said plurality of linear motor taps;
• a logic block operatively connected to said switching means, said logic block being capable of energizing one of said plurality of switching means at a time so that one of said motor taps is energized at a time;
• a plurality of set-point amplifiers operatively connected to said logic block;
• an oxygen concentrator indicator circuit board operatively connected to said plurality of set-point amplifiers, said circuit board capable of converting an oxygen concentration in a sample of air to a DC voltage;
• and
• an oxygen concentration sensor operatively connected to said circuit board, said sensor disposed to receive an air sample from said oxygen concentrator and determine a concentration of oxygen in said sample and relaying said concentration to said circuit board.