EP 0718047 B1 20000301 - Injection device for conveying coating powder
Title (en)
Injection device for conveying coating powder
Title (de)
Injektorvorrichtung zur Beförderung von Beschichtungspulver
Title (fr)
Injecteur pour le transport de poudre de revêtement
Publication
Application
Priority
DE 4446797 A 19941224
Abstract (en)
[origin: EP0718047A2] The system has a suction area (8) at the upstream end (18) of the powder passage (4), drawing the powder in via an intake passage (6). One or more air passages (26,28) deliver compressed air (30), drawing the powder into the suction area. A powder barrier with microporous element permeable only to air is mounted in the downstream end of the air passage, and prevents powder penetration into the latter. The powder passage and intake passage can be inclined to each other, being connected by an angular transit passage forming the suction area. On the outside of this passage there can be a stepless curved portion between its two arms (12,14). The powder passage can taper in a stepless cone from the upstream end, at which it is of the same size as the adjacent end of the angular passage.
IPC 1-7
IPC 8 full level
B05B 7/14 (2006.01); B05C 19/00 (2006.01); B65G 53/14 (2006.01)
CPC (source: EP US)
B05B 7/1404 (2013.01 - EP US); B05B 7/1472 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE LI NL
DOCDB simple family (publication)
EP 0718047 A2 19960626; EP 0718047 A3 19981230; EP 0718047 B1 20000301; DE 4446797 A1 19960627; DE 59507898 D1 20000406; US 5645380 A 19970708
DOCDB simple family (application)
EP 95116541 A 19951020; DE 4446797 A 19941224; DE 59507898 T 19951020; US 57439095 A 19951218