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AssigneeRoam Technologies Pty Ltd.
InventorsShan-Shan Wang, Eugene Weng Hong Lai, Sisi Zheng, Jay Reginald Flack, Jeremy Travis Kwarcinski, Natalie Etain Ho, Gavin Dean May
Estimating the term…
A handheld portable oxygen concentrator device is disclosed. The device may comprise a first column and a second column, a product buffer, a plurality of valves in fluidly coupling the first column, the second column, the one or more pumps, and the product buffer. The device may comprise a controller configured to cycle repeatedly through the following phases: (a) raising pressure in the first column by connecting the first column to a positive pressure pump and releasing concentrated oxygen in the first column to the product buffer, (b) equalizing the pressure in the first column and the second column by connecting the first column to the second column, (c) lowering the pressure in the first column by connecting the first column to a negative pressure pump, and (d) equalizing the pressure in the first column and the second column by connecting the first column to the second column.
A portable oxygen concentrator, comprising:
4-9. (canceled)
A method for operating a portable oxygen concentrator, performed by a controller, wherein the portable oxygen concentrator comprises one or more pumps and a plurality of valves fluidly coupling a first column that includes an adsorbent, a second column that includes an adsorbent, and a product buffer, the method comprising cycling repeatedly through the following phrases:
21-26. (canceled)
A portable oxygen concentrator, comprising:
Dependencies are inferred from the claim text.