US 6,393,802 B1 · Cylinder filler for use with an oxygen concentrator

Abstract

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.

Claims9

Dependent claims

A process for filling an oxygen cylinder comprising the steps of:

a) connecting said oxygen cylinder to a source of compressed oxygen rich gas;
b) automatically measuring the gas pressure within said connected oxygen cylinder;
and
c) so long as the measured gas pressure within said connected oxygen cylinder is at least a predetermined minimum pressure greater than the ambient atmospheric pressure, automatically filling said connected oxygen cylinder with oxygen rich gas to a predetermined maximum pressure with compressed oxygen from said source, and preventing the automatic filling of said connected oxygen cylinder with oxygen rich gas if the measured gas pressure in said connected oxygen cylinder is below said predetermined minimum pressure.

1 more element

Dependencies are inferred from the claim text.

Cylinder filler for use with an oxygen concentrator

Life of this patent

Cylinder filler for use with an oxygen concentrator

Life of this patent

Abstract

Claims9