Sunrise Medical Hhg, Inc.

Frank Frola

Karl S Bowser

Donald W Hunter

Raymond C Hoffman

Greg Clites

Jesse Moore

A coupling having, among other things, a body including a valve movable from a first position to a second position. The valve has an oxygen passageway in communication with a first inlet for a flow of oxygen to the oxygen passageway when the valve is in the first position. The valve has a second inlet for a flow of oxygen to the oxygen passageway when the valve is in the second position.

Coupling

An energy efficient oxygen concentrator for filling high pressure portable cylinders with medical oxygen for use by ambulatory patients. Two compressors provide two pressurized air sources, one for operating an oxygen concentrator to provide a stream of oxygen enriched gas, and the other for driving a pressure intensifier for filling portable oxygen cylinders. Pressurized exhaust from the pressure intensifier is returned to the inlet side of at least one of the compressors for reducing the energy required to drive the compressor. Preferably, each compressor has a single reciprocating piston, a single motor drives both pistons and the pressurized exhaust from pressure intensifier is provided to the inlets for both compressors.

Cylinder filling oxygen concentrator

An energy efficient oxygen concentrator in which a compressor applies pressurized air to at least two gas separating elements which will pass a flow of oxygen while blocking a flow of nitrogen. The gas separating elements are alternately cycled between a gas separating mode for producing oxygen enriched gas and a purge mode for purging nitrogen from the elements. According to the invention, the speed of the cycle time is increased as the oxygen enriched gas flow requirement is decreased below the maximum concentrator output. The higher cycle speed reduces the maximum compressor pressure to reduce energy consumption.

Energy efficient oxygen concentrator

An oxygen concentrator for supplying supplemental oxygen to a patient. The oxygen concentrator is adapted to supply supplemental oxygen directly to the patient and/or to a cylinder filler which is controlled to automatically fill a portable oxygen cylinder for use by an ambulatory patient. The cylinder filler is controlled to check the initial gas pressure in the cylinder prior to filling. If the initial cylinder pressure is below a preset minimum pressure, the cylinder filler will not fill the cylinder so that an empty cylinder which may be contaminated cannot be filled.

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Somerset, PA, United States of America

Frank Frola