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:
Jan. 26, 1999
Filed:
Dec. 20, 1996
Donaldson J Emch, Brighton, MI (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
An apparatus and method for spray painting of an article where the paint is heated to reduce the viscosity prior to being fed to a paint spray device such as an electrostatic paint spray device. A heat exchange unit is provided between each of a plurality paint supply sources and a paint spray device of a paint spray station, the heat exchange unit located closely adjacent to a respective paint spray device such that only paint being supplied to a paint spray device is heated by a respective heat exchange unit. The heat exchange unit preferably uses a hot dielectric oil for indirect heat exchange with the paint, and preferably a volume of heated paint between a heat exchange unit and a respective paint spray device is only about 15 percent or less of the volume of paint in the heat exchange unit, while the volume of heated paint is about one to three times the volume per minute of flow through the heat exchanger.