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:
Dec. 18, 1990
Filed:
Dec. 06, 1989
Robert J Lind, Robbinsdale, MN (US);
Stanley G Karwoski, Oakdale, MN (US);
Graco Inc., Minneapolis, MN (US);
Abstract
An electrostatic spray gun having an internal alternator-turbine power supply is provided with an air circuit which divides the air passages to the front end of the gun on one hand and to the power supply in the other hand at the trigger valve to prevent paint or solvent leakage into the power supply. The power supply is completely encapsulated or potted such that the only parts of the power supply extending through the containment are heat sinks, electrical connectors and a voltage indicator. Lastly, as C-clip is provided to attach the turbine alternator to the rest of the power supply which utilizes an interior groove on the alternator turbine and an exterior groove on the main body of the power supply.