Patent ID: 11884910
Assignee: EMBRIENT, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 12:
13. A method of supplying gas to a controlled atmosphere incubator, comprising:
providing a gas supply system that comprises (a) an ambient air compressor fluidly coupled to a gas mixing unit via a first conduit, (b) a second conduit coupling the ambient air compressor to a pressure swing adsorption (PSA) unit or a membrane filtration unit, wherein the PSA or membrane unit is configured to produce a nitrogen rich product, wherein the second conduit further couples the PSA or membrane unit to the gas mixing unit, and (c) a control unit configured to independently operate respective valves in the first and second conduits;
feeding a gas stream from the gas supply system to the controlled atmosphere incubator via a third conduit that fluidly connects the gas mixing unit to the controlled atmosphere incubator;
receiving, by the control unit, a signal from a first gas sensor located in the controlled atmosphere incubator; and
using the signal in the control unit to operate at least one of the valves in the gas supply system to thereby regulate flow and/or composition of the gas stream flowing from the gas mixing unit to the controlled atmosphere incubator.