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. 05, 2005
Filed:
Sep. 27, 2002
Dragoslav K. Milojevic, Bloomfield Hills, MI (US);
Christopher M. Rennie, Waterford, MI (US);
Melissa L. Koster, New Hudson, MI (US);
Gary J. Ciarelli, Milford, MI (US);
Gunter Börner, Sinsheim, DE;
Dragoslav K. Milojevic, Bloomfield Hills, MI (US);
Christopher M. Rennie, Waterford, MI (US);
Melissa L. Koster, New Hudson, MI (US);
Gary J. Ciarelli, Milford, MI (US);
Gunter Börner, Sinsheim, DE;
ABB Inc., New Berlin, WI (US);
Abstract
A powder spraying gun generates a desired pattern of electrostatically charged particles for coating a workpiece without rotating parts or particle deflectors. The powder pattern is generated with a funnel-shaped output in conjunction with air introduced into a powder charging chamber of the gun in a tangential swirling motion. The swirling air is additionally used to purge agglomerated powder particles from the charging electrodes in the charging chamber. The charging chamber surface is fashioned from material exhibiting low friction or high resistance to powder impact fusion.