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:
Apr. 07, 2009
Filed:
Jul. 02, 2003
Applicants:
Piotr Kula, Lodz, PL;
Jozef Olejnik, Swiebodzin, PL;
Paul Heilman, Maintul, DE;
Inventors:
Assignees:
Seco / Warwick S.A., Swiebodzin, PL;
Politechnika Lodzka, Lodz, PL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The subject of present invention relates to mixture for carburizing of steel products, mainly parts of machines, vehicles and every mechanical apparatus, used in vacuum furnaces. Present invention relates to mixture for under-pressure carburizing containing the carbon carrier comprising two unsaturated hydrocarbons, likely ethylene and acetylene, in volume ratio from 0.1 to 2.00. The carbon carrier can be further mixed with hydrogen or ammonia.