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:
May. 22, 2007
Filed:
Oct. 01, 2003
Applicant:
Claude Gerard, Chantraine, FR;
Inventor:
Claude Gerard, Chantraine, FR;
Assignee:
Nordon Cryogenie SNC, Golbey, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fin produced from thick sheet-metal and having a pattern reproduced in a general direction in accordance with a geometric pitch such that the ratio of the minimum thickness of the sheet-metal to the geometric pitch is greater than 0.2. The fin is obtained either by a hot-extrusion operation or by a material-removing machining operation.