Device for conveying coating powder and method for conveying powder with the conveying device
AssigneeJ. Wagner GmbH
InventorsLeopold von Keudell, Thomas Schwarz
Life of this patent
Estimating the term…
Abstract
A device for conveying coating powder has an inlet valve, an outlet valve and a powder conveying chamber made from a flexible conveying chamber hose. The powder conveying chamber is arranged between the inlet valve and the outlet valve and has a conveying air inlet. In addition, the volume of the powder conveying chamber can be modified by a deformation of the conveying chamber hose.
Claims15
A device for conveying coating powder, comprising:
- an inlet valve and an outlet valve, wherein the inlet valve and/or the outlet valve can be controlled, and
- a flexible conveying chamber hose defining a powder conveying chamber,
- wherein the powder conveying chamber is arranged between the inlet valve and the outlet valve,
- the powder conveying chamber has a conveying air inlet for blowing conveying air into the powder conveying chamber,
- a pressure chamber surrounding the conveying chamber hose is provided, and a fluid connection for loading or evacuating the pressure chamber of fluid to alter the pressure within the pressure chamber wherein the volume of the powder conveying chamber is modified by deforming the conveying chamber hose by altering the pressure of the pressure chamber.
A method for conveying powder with a device for conveying coating powder, the device including an inlet valve and an outlet valve, wherein the inlet valve and/or the outlet valve can be controlled, and a flexible conveying chamber hose defining a powder conveying chamber, wherein the powder conveying chamber is arranged between the inlet valve and the outlet valve, the powder conveying chamber has a conveying air inlet, the volume of the powder conveying chamber is modified by deforming the conveying chamber hose, and a pressure chamber surrounding the conveying chamber is provided, the method including the following steps:
- a) the inlet valve is closed, the outlet valve is opened and conveying air is blown into the powder conveying chamber via the conveying air inlet,
- b) the volume of the powder conveying chamber is reduced,
- c) the outlet valve is closed and the inlet valve is opened,
- d) the volume of the powder conveying chamber is increased, and
- e) the steps a) to d) are repeated.
Dependencies are inferred from the claim text.