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:
Jun. 13, 2000
Filed:
Mar. 30, 1999
Applicant:
Inventors:
Kenneth Kai Wong, Amherst, NY (US);
Dante Patrick Bonaquist, Grand Island, NY (US);
James Bragdon Wulf, Williamsville, NY (US);
Assignee:
Praxair Technology, Inc., Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J / ;
U.S. Cl.
CPC ...
62654 ;
Abstract
A cryogenic air separation system employing a double column wherein lower pressure column bottom liquid is pressurized in a single cryogenic liquid pump to provide driving fluid for the main condenser and to provide product elevated pressure oxygen.