EP 0203694 A2 19861203 - Improved particle spray gun.
Title (en)
Improved particle spray gun.
Title (de)
Puderspritzpistole.
Title (fr)
Pistolet pour la pulvérisation de poudre.
Publication
Application
Priority
- US 72439285 A 19850418
- US 79135285 A 19851025
Abstract (en)
An electrostatic particle spray gun (10) having, in one preferred embodiment, a conical deflector (16) of insulative material mounted in the nozzle (14) in the particle path for forming a conical particle spray pattern. A resistive sheet (44) connected to a high voltage electrostatic supply is sandwiched between the forward (40) and rearward (42) ends of the deflector (16), leaving only the perimeter of the sheet (44) exposed at the peripheral region of the conical deflector (16). The perimeter of the resistive sheet (44) functions as a multi-point circular electrode for charging the particles such that improved coating transfer efficiencies are achieved. Also, because of the resistive nature of the resistive sheet (44), the sheet constitutes a resistor in the electrical current path between the center of the sheet where it connects to a high voltage terminal and the circular periphery of the sheet which serves as the multiple point charging electrode, thereby minimizing unsafe electrical discharges should the electrode inadvertently approach a grounded object.
IPC 1-7
IPC 8 full level
B05B 5/025 (2006.01); B05B 5/053 (2006.01)
CPC (source: EP KR)
B05B 5/00 (2013.01 - KR); B05B 5/0533 (2013.01 - EP)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0203694 A2 19861203; EP 0203694 A3 19870107; EP 0203694 B1 19890705; AU 5579086 A 19861023; AU 580147 B2 19890105; CA 1254030 A 19890516; DE 3664185 D1 19890810; DK 175486 A 19861019; DK 175486 D0 19860417; IN 166961 B 19900811; JP H0724794 B2 19950322; JP S6297654 A 19870507; KR 860007968 A 19861110; KR 940006020 B1 19940702
DOCDB simple family (application)
EP 86302813 A 19860415; AU 5579086 A 19860409; CA 506145 A 19860409; DE 3664185 T 19860415; DK 175486 A 19860417; IN 329DE1986 A 19860411; JP 8842486 A 19860418; KR 860003001 A 19860418