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.

Date of Patent:
Dec. 09, 1997

Filed:

Aug. 21, 1996
Applicant:
Inventors:

Abraham Soffer, Arad, IL;

Moshe Azariah, Moshav Gilat, IL;

Abraham Amar, Omer, IL;

Haim Cohen, Beer-Sheva, IL;

Dan Golub, Omer, IL;

Shlomo Saguee, Beer-Sheva, IL;

Haim Tobias, Beer-Sheva, IL;

Assignees:

Rotem Industries Ltd., Beer-Sheva, IL;

AGA Aktiebolag, Lidingo, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
4272481 ; 427249 ;
Abstract

A process for manufacturing carbon membranes having controlled pore sizes comprises the steps of: a) causing a stream of a pyrolysable carbon-containing gas to come into contact with a carbon membrane having a pore size and/or distribution larger than the desired pore size and/or distribution; b) raising the ambient temperature of the said membrane to or above the temperatures at which the adsorbed carbon-containing gas pyrolyzes; and c) substantially purging the atmosphere surrounding the membrane from carbon-containing gas.


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