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:
Aug. 18, 1981
Filed:
Jun. 28, 1979
Applicant:
Inventor:
Ronald P Andres, Princeton, NJ (US);
Assignee:
Research Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
55 16 ; 55 17 ; 55 66 ; 55158 ; 55277 ;
Abstract
A method and apparatus for separating molecules or particles of different mass comprises combining the molecules or particles in a carrier gas of lighter molecular weight, accelerating the composite mixture in a supersonic free jet, decelerating the free jet through a light background gas at a controlled pressure, directing the decelerating jet onto a membrane wherein the constituents of the composite mixture are segregated, withdrawing a stream enriched in the high mass species which preferentially pass through the membrane, and withdrawing a stream enriched in the low mass species which are preferentially blocked by the membrane.