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. 21, 2011
Filed:
Feb. 04, 2008
Applicants:
Peter Wölpert, Zierenberg, DE;
Benno Ganser, Alzenau, DE;
Dietlinde Jakobi, Köln, DE;
Rolf Kirchheiner, Iserlohn, DE;
Inventors:
Peter Wölpert, Zierenberg, DE;
Benno Ganser, Alzenau, DE;
Dietlinde Jakobi, Köln, DE;
Rolf Kirchheiner, Iserlohn, DE;
Assignee:
Schmidt + Clemens GmbH + Co., KG, Lindlar, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F28F 1/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A finned tube for the thermal cracking of hydrocarbons in the presence of steam is defined by a tube axis and includes a plurality of inner fins. The fins are inclined at an angle of 20° to 40° in relation to the tube axis and have a flank angle of 16° to 25°.