Itw Gema Ag

Hans Peter Michael

Gerald Haas

Felix Mauchle

Guido Rutz

The invention relates to a level detecting system for a powder container of a powder-coating apparatus. It contains an inductive proximity sensor ( ) and an electrically insulating membrane ( ) which is displaceable to-and-fro the proximity sensor and which is fitted on its inside surface opposite the proximity sensor with a metallic element ( ) affixed to it and affecting the magnetic properties of the proximity sensor. The level detecting system operates regardless of any powder particles adhering to it.

Level probe for powder container

A spray powder-coating apparatus fitted with an electronic control system ( ) regulating the air flows ( ) to an injector ( ) as a function of setpoints (m) for the rates of powder to be moved, and as a function of a setpoint (GV) for the total rate of air passing through the nozzle, by means of motor-driven adjustable throttles ( ), preferably also as a function of the actual values ( ) of the regulated air flows ( ).

Powder spray coating device

A powder coating system comprising at least one throttle unit ( ) which is adjusted by an electric motor, preferably a stepping motor ( ) through a bellows connector ( ).

Powder coating device

Powder-coating equipment comprises two throttles ( ) each mounted in one of a conveyance-air line ( ) and a supplemental-air line ( ). The throttles' flow impedance' are adjustable in a motorized manner by providing throttle with its own adjustment motor ( ). The adjustment motors, such as electric stepping motors and/or servo-motors are driven by an electronic control unit ( ).

Powder coating equipment having zero-sum control of conveyance and supplement air lines

A powder-conveying injector to move coating powder and wherein the jet catching duct(,) of the conveying jet nozzle (,) is made of glass.

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St. Gallen, Switzerland

Hans Peter Michael