The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 2000
Filed:
Dec. 02, 1998
Alan Tat Cheng, Livingston, NJ (US);
Steven Donald Clark, Grand Island, NY (US);
Paolo Sergio Bon, Sao Paulo, BR;
Thomas John Bergman, Jr, Clarence Center, NY (US);
Jeffrey Paul Kingsley, Newburgh, NY (US);
Mark Herbert Kirby, Burlington, CA;
Mitchell Adis, North White Plains, NY (US);
Victor Alexander Coppola, Norwalk, CT (US);
Praxair Technology, Inc., Danbury, CT (US);
Abstract
A system for the dissolution of gas in a large body of liquid comprising an impeller positioned below the surface of the large body of liquid; a floating hood positioned over the impeller and of sufficient size to capture undissolved gas; a conduit for introducing a feed gas stream beneath the floating hood and directly into the large body of liquid; at least one segregation ring positioned under the floating hood and extending below the surface of the large body of liquid such that a first inner region between the ring and the impeller, and a second outer region between the ring and an outer diameter of the floating hood are created, and a back pressure regulator located in the floating hood adjacent to the outer diameter of the floating hood.