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. 28, 1987
Filed:
Jun. 29, 1983
Gordon V Mommsen, Brooklyn Center, MN (US);
Graco Inc., Minneapolis, MN (US);
Abstract
An indicator light apparatus having two terminals, one of the terminals being connected to the common or ground circuit of an electrostatic spray gun, preferably by connection to a grounded spray gun handle, the other terminal being placed in the proximity of the electrostatic field generated by the spray gun, so as to collect voltage charges emitted from the high voltage electrode of the spray gun and to conduct these charges to ground through the light indicator, which is typically a neon light or the like. The presence of electrostatic high voltage causes sufficient current flow through a light indicator to illuminate the light and provide an indication that the high voltage circuits are operating properly.