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:
Sep. 11, 2012
Filed:
Jun. 04, 2007
Christophe Vermeire, Gentbrugge, BE;
Kristof Benoit, Waregem, BE;
Christophe Vermeire, Gentbrugge, BE;
Kristof Benoit, Waregem, BE;
Recticel Automobilsysteme GmbH, Rheinbreitbach, DE;
Abstract
The pressure swirl atomizing nozzle for spraying a curable composition comprises an orifice piece (), which defines a funnel-shaped cavity and an exit orifice (), and an injector piece () which closing off the funnel-shaped cavity so that the funnel-shaped cavity forms a swirl chamber () between a front side of the injector piece () and the exit orifice (). The injector piece () comprises at least two swirl ports () which end in the swirl chamber () for injecting the curable composition therein and for thereby imparting swirl to the curable composition. Compared to the sum of the smallest cross-sectional areas of the swirl ports (), the side wall () of the swirl chamber () has a relatively small surface area which is however still large enough to distribute the curable composition so as to achieve a uniform spray pattern. By the reduced size of the swirl chamber (), the curable composition can be atomized more efficiently. In this way, changes of the relatively low flow rate of the curable composition through the nozzle have less effect on the droplet size and on the stability of the spray pattern.