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. 08, 2009
Filed:
May. 06, 2003
Frank Herre, Oberriexingen, DE;
Rainer Melcher, Oberstenfeld, DE;
Herbert Martin, Weinstadt, DE;
Michael Baumann, Flein, DE;
Richard M. Ostin, Farmington, MI (US);
Robert F. Heldt, Oxford, MI (US);
Manfred Michelfelder, Höpfigheim, DE;
Joachim Hering, Duermentingen, DE;
Frank Herre, Oberriexingen, DE;
Rainer Melcher, Oberstenfeld, DE;
Herbert Martin, Weinstadt, DE;
Michael Baumann, Flein, DE;
Richard M. Ostin, Farmington, MI (US);
Robert F. Heldt, Oxford, MI (US);
Manfred Michelfelder, Höpfigheim, DE;
Joachim Hering, Duermentingen, DE;
Durr Systems, Inc., Auburn Hills, MI (US);
Abstract
The disclosed apparatus includes a supply line () between a source of liquid paint () and an applicator () having at least two pigs (A andB) and a source of liquid solvent () which delivers solvent () between the two pigs (A andB) and the pigs (A andB) are driven by paint () from adjacent the paint source () to the applicator (). The apparatus further includes a second source of liquid solvent () which delivers solvent () between the pigs (A andB) adjacent the applicator () and the pigs (A andB) are returned through the supply line (), thereby flushing the supply line (). In the disclosed embodiment, the source of liquid paint () is a piston dosing device () which receives paint () from a color changer or the like and delivers a predetermined volume of paint () to the applicator (). The delivery line () preferably includes a friction resistant inner layer, an intermediate dielectric layer and a protective outer layer.