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. 19, 2009
Filed:
Jun. 11, 2003
Rolf Ludwig Diehm, Wertheim, DE;
Rudolf Ullrich, Kreuzwertheim, DE;
Rolf Ludwig Diehm, Wertheim, DE;
Rudolf Ullrich, Kreuzwertheim, DE;
SEHO Systemtechnik GmbH, Kreuzwertheim, DE;
Abstract
A process chamber of an installation for the thermal treatment of printed circuit boards is described. The process chamber may include a fan wheel supported on a shaft parallel to the printed circuit boards, the fan wheel being disposed between two walls of the process chamber. The fan wheel is open at its two end faces and the two end faces are at such a distance from the walls of the process chamber that gas flows in unimpeded in two substreams between the end faces of the fan wheel and the walls and flows out from the cylindrical surface of the fan wheel over the length thereof and in the extent of the process chamber in the form of a ribbon-shaped gas stream, the gas stream being directed essentially in the cross section through a channel onto the printed circuit boards.