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:
Dec. 24, 1985
Filed:
Jul. 06, 1984
Applicant:
Inventors:
Robert A Beddome, Kenmore, NY (US);
Harry Cheung, Kenmore, NY (US);
Assignee:
Union Carbide Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J / ;
U.S. Cl.
CPC ...
62 29 ; 62 30 ; 62 31 ;
Abstract
A double column air separation process which enables one to efficiently produce oxygen gas at a pressure exceeding that of the lower pressure column without compression or pumping wherein oxygen liquid hydrostatic head is employed to impart a pressure increase to the oxygen.