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:
Feb. 10, 2009
Filed:
Mar. 10, 2006
Applicants:
Joseph Alfred Weber, Cheektowaga, NY (US);
M. Mushtaq Ahmed, Pittsford, NY (US);
Todd Alan Skare, Shanghai, CN;
Neil Mark Prosser, Lockport, NY (US);
Inventors:
Joseph Alfred Weber, Cheektowaga, NY (US);
M. Mushtaq Ahmed, Pittsford, NY (US);
Todd Alan Skare, Shanghai, CN;
Neil Mark Prosser, Lockport, NY (US);
Assignee:
Praxair Technology, Inc., Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for the cryogenic separation of air having defined temperatures for condensed feed air passed into a double column system relative to liquid oxygen and preferably to shelf vapor, and wherein kettle liquid is not subcooled from the higher pressure column to the lower pressure column.