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:
Jul. 23, 2002
Filed:
Nov. 02, 1999
Harold T. Allen, Indianapolis, IN (US);
Varce E. Howe, Zionsville, IN (US);
Jerry L. McPherson, Jr., Greenfield, IN (US);
Roy E. Young, II, Avon, IN (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A coating system includes a source of electrically non-insulative coating material, a dispenser for dispensing the coating material toward an article to be coated thereby, and an electrostatic high potential supply for supplying charge to the coating material. The high potential supply is coupled across the dispenser and the article. The coating system further includes a reservoir, a valve having a housing providing first, second, third and fourth ports, and a component movable within the housing and having a first passageway selectively to connect the first port to the second port to permit the flow of coating material between the first port and the second port. Sensors sense: the flow rate of the eletrically non-conductive fluid and provide an indication when the flow rate of the eletrically non-conductive fliud falls outside a desired range—the pressure of the eletrically non-conductive fliud and provide an indication when the pressure of the eletrically non-conductive fliud falls outside a desired range; the pressure of the coating material and provide an indication when the pressure of the coating material falls outside a desired rande—and the current supplied from the potential supply to the valve and provide an indication when the current supplied from the potential supply to the valve falls outside a desired range.