EP 0297309 A3 19891018 - PROCESS AND DEVICE FOR METERING AND REGULATING THE POWDER FLOW IN A POWDER SPRAY COATING INSTALLATION
Title (en)
PROCESS AND DEVICE FOR METERING AND REGULATING THE POWDER FLOW IN A POWDER SPRAY COATING INSTALLATION
Publication
Application
Priority
DE 3721875 A 19870702
Abstract (en)
[origin: EP0297309A2] With this device, it is possible to measure and regulate directly the quantities of powder which are fed per unit time to a spray coating device for spray coating objects. For this purpose, the powder component in a powder/gas stream of the pneumatically conveyed powder is measured by a radiometric device (44) and the measured value is linked electronically, via an electronic evaluation device (42), with a value for the gas quantity which corresponds to the quantity of gas contained in the powder/gas stream and from this forms an absolute actual value of the quantity of powder conveyed per unit time. <IMAGE>
IPC 1-7
IPC 8 full level
B05B 7/14 (2006.01); B05B 12/08 (2006.01); B05D 1/12 (2006.01); G01F 1/74 (2006.01); G01N 21/85 (2006.01)
CPC (source: EP US)
B05B 7/1404 (2013.01 - EP US); B05B 7/1472 (2013.01 - EP US); B05B 12/085 (2013.01 - EP US)
Citation (search report)
- [X] EP 0183637 A1 19860604 - UNITED TECHNOLOGIES CORP [US]
- [A] US 4228353 A 19801014 - JOHNSON STEVEN A
- [Y] US 3997433 A 19761214 - LIU BENJAMIN Y H, et al
- [A] US 2953681 A 19600920 - DAVID FRAZIER
- [A] EP 0166092 A1 19860102 - WAGNER GMBH J [DE]
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0297309 A2 19890104; EP 0297309 A3 19891018; EP 0297309 B1 19931222; DE 3721875 A1 19890112; DE 3886453 D1 19940203; JP H0661498 B2 19940817; JP S6411662 A 19890117; US 4941778 A 19900717
DOCDB simple family (application)
EP 88108891 A 19880603; DE 3721875 A 19870702; DE 3886453 T 19880603; JP 14343288 A 19880610; US 21420688 A 19880701