Disposable pressure container, in particular for use as a refill container for refrigerating and air conditioning systems

A disposable pressure container, comprising:

• a. a container having a container opening therein;
• b. a cover, said cover being received by said container opening, said cover having a cover filling and removing opening therethrough;
• and,
• c. a combined filling and removing valve, said combined filling and removing valve being retained by said cover within said pressure container;
• said combined filling and removing valve having:
• (1.) a first valve body within a valve housing having a first end and a second end;
• said first valve body having a generally cylindrical shape, said first valve body having a first valve body diameter, said first valve body having a sealing collar end and a tappet end;
• (2.) a second valve body within said valve housing, said second valve body having a second valve body diameter;
• (3. ) a sealing disk adjacent said first end of said valve housing, said sealing disk having a disk filling and removing opening therethrough, said sealing disk positioned at a location between said cover and said sealing collar end of said first valve body, said disk filling and removing opening and said cover filling and removing opening being in flow communication;
• (4.) a helical spring within said valve housing;
• and
• (5.) said valve housing of unitary construction;
• said valve housing having an axis therethrough;
• said valve housing having a first axial bore therein extending from said first end, said first axial bore having a first axial bore diameter;
• said valve housing having a second axial bore therein extending from said first axial bore, said second axial bore having a second axial bore diameter and a second axial bore circumference;
• said valve housing having a third axial bore therein extending from said second end, said third axial bore having a third axial bore diameter;
• said first axial bore and said second axial bore having a first intersection location;
• said second axial bore and said third axial bore having a second intersection location;
• said second intersection location defining a valve seat;
• said first axial bore diameter being greater than said second axial bore diameter, said second axial bore diameter being greater than said third axial bore diameter, said second valve body diameter being greater than said third axial bore diameter and less than said second axial bore diameter, said first valve body diameter being less than said first axial bore diameter;
• said valve housing having a surmountable and fluid-permeable barrier assembly, said barrier assembly being located internal to said valve housing at said first intersection location, said barrier assembly having a shoulder at said first intersection location, said shoulder having a plurality of radial inward projections extending therefrom, said plurality of projections having ends defining a projection circumference, said projection circumference being less than said second axial bore circumference;
• (6.) said second valve body being movable from said first axial bore to said second axial bore of said valve housing;
• said helical spring disposed within said first axial bore of said valve housing;
• said first valve body disposed within said first axial bore of said valve housing;
• said helical spring engageable with said barrier assembly and said first valve body thereby urging said sealing collar end of said first valve body against said sealing disk.