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US 2012/0055483 A1Published application
Shutdown system and method for an oxygen concentrator
OwnerWilliam R. Wilkinson, H. David Shockley, JR.inventors
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Abstract
Described herein are various embodiments of an oxygen concentrator system. In some embodiments, an oxygen concentrator system may be shutdown such that the canisters are pressurized to a pressure greater than ambient pressure.
Claims21
1-639. (canceled)
A method of operating an oxygen concentrator apparatus, the oxygen concentrator apparatus comprising:
- at least two canisters;
- gas separation adsorbent disposed in at least two canisters, wherein the gas separation adsorbent separates at least some nitrogen from air in the canister to produce oxygen enriched gas;
- and
- a compression system coupled to at least one canister, wherein the compression system compresses air during use;
- at least one conduit coupled to at least one canister, the conduit receiving an oxygen enriched stream from at least one canister during use;
- the method comprising:
- automatically pressurizing one or more canisters with oxygen enriched gas during a shut-down sequence of the oxygen concentrator such that the pressure inside one or more canisters is above ambient pressure:
4 more elements
659-660. (canceled)
Dependencies are inferred from the claim text.