EP 0818245 B1 20011128 - Triboelectric spray gun, installation for spraying coating products and method for controlling such a gun
Title (en)
Triboelectric spray gun, installation for spraying coating products and method for controlling such a gun
Title (de)
Triboelektrische Sprühpistolen-Anlage zum Sprühen von Beschichtungsmaterialien und Verfahren zur Steuerung einer solchen Pistole
Title (fr)
Projecteur triboélectrique, installation de projection de produit de revêtement et procédé de commande d'un tel projecteur
Publication
Application
Priority
FR 9608894 A 19960710
Abstract (en)
[origin: EP0818245A1] Air (3), carrying powder particles picked up by venturi action from an air-agitated reservoir, is diluted and/or accelerated on entry (21) by air injected via a central nozzle (25a), directed downstream. The stream then enters the annular passage (12) between concentric inner (14) and outer (13) tubes of insulating material. The former, plugged by conical entry (14b) and exit (14c) fairings, is supported by perforated spacer rings (19, 20). The tribo-electric charge, proportional to the injected control air-flow (25) is measured by the current collected by a conducting carbon-fibre tube (26) close-fitting over the outer insulated tube (13) and passed to earth (27, 28) via an external control unit, automatically adjusting the injected air-flow. The charged air-stream is finally projected through the end nozzle (18).
IPC 1-7
IPC 8 full level
B05B 5/047 (2006.01); B05B 12/08 (2006.01)
CPC (source: EP US)
B05B 5/047 (2013.01 - EP US); B05B 12/08 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL PT SE
DOCDB simple family (publication)
EP 0818245 A1 19980114; EP 0818245 B1 20011128; AT E209530 T1 20011215; DE 69708528 D1 20020110; FR 2750897 A1 19980116; FR 2750897 B1 19980918; US 5924631 A 19990720
DOCDB simple family (application)
EP 97420104 A 19970702; AT 97420104 T 19970702; DE 69708528 T 19970702; FR 9608894 A 19960710; US 88967697 A 19970708