Patents Represented by Attorney Richard G. Tonkyn

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  • Method for capturing nitrogen from air using gas separation membrane
    Patent number: 5730780
    Abstract: This invention comprises an improved process for generating Nitrogen from air in which a vacuum is placed on the permeate side of a gas separation membrane, usually of the polysulfone type, resulting in highly enhanced flow rates and nitrogen purity sufficient for oil and gas pipeline repair use and for use in grain silos.
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: March 24, 1998
    Assignee: Opus Services, Inc.
    Inventor: Ronald Earl Booth, III