Gas dispersion process and system
Patent 4867918 Issued on September 19, 1989. Estimated Expiration Date: 
December 30, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 30, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2060557 2413102 3371618 3400818 3734111 3778038 Treating device for large bodies of water Backflushing system Hydromassage fitting for tubs, spas and pools Dissolving gas in a liquid Patent #: 4639340 InventorsApplicationNo. 07/139573 filed on 12/30/1987US Classes:261/76Injector typeExaminersPrimary: Miles, Tim R.Attorney, Agent or FirmInternational ClassesB01J 19/26 (20060101)B01F 5/04 (20060101) B01J 10/00 (20060101) AbstractGas dispersion in a liquid is enhanced by combining the gas and liquid in close proximity to a venturi or other flow constriction means used to create supersonic flow velocities and subsequent deacceleration to sub-sonic velocity. When a venturi is employed, the gas-liquid mixing occurs in the converging portion of the venturi or upstream but in close proximity to said venturi. Turbulent flow conditions upstream of the venturi or other flow constriction means adequate to disperse the gas uniformly in the liquid are not required and, surprisingly, the gas and liquid need not be uniformly dispersed prior to acceleration to supersonic velocity.Other References
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