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. 06, 2004
Filed:
Mar. 08, 2002
Hanspeter Michael, St. Gallen, CH;
ITW Gema AG, St. Gallen, CH;
Abstract
A high-voltage powder spray gun includes a rear terminal segment ( ) of a powder tube ( ) and the front terminal segment ( ) of a hookup tube ( ) which are inserted far enough in axial and sealing manner to subtend, between their overlap ends ( ), a powder-tight, electrically insulating expanse ( ) to preclude electrical leakage currents. An electrically conducting bush ( ) runs over the outer overlap end ( ) of the hookup-tube/powder-tube connection to shunt any electric charges that might issue at the outer overlap end ( ) between the hookup tube ( ) and the powder tube ( ). An electrically grounded shielding sheath ( ), such as a helical compression spring, is configured radially away above the outer overlap end ( ) between the rear terminal segment of the hookup tube ( ) and the front end of powder hose ( ) slipped over the rear terminal segment. This configuration prevents arcing on the hand of an operator in the event electric charges were to issue between the powder hose ( ) and the hookup tube ( ).