Insulation device and coating system comprising said insulation device

Patent metadata

Field	Value
Publication number	US-10898917-B2
Application number	US-201716076427-A
Country	US
Kind code	B2
Filing date	Feb 10, 2017
Priority date	Feb 10, 2016
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

An insulation device for a coating system for coating objects, the coating system having an electrostatically operating application apparatus having a dispensing device which dispenses a coating material, and at least one storage container which is connected to an input valve device via an inlet line and to the dispensing device via a supply line. The insulation device comprises a channel with a physical body which can move in the channel. The physical body has an electrically insulating material and can be moved by means of a fluid pressure between a park position and an insulation position and is designed such that, when it moves from the park position to the insulation position or from the insulation position to the park position, the physical body removes material from an inner casing surface of the channel, so that an electrical insulation path can be formed between the storage container and the input valve device.

First claim

What is claimed is:

1. An insulation device for a coating system for coating objects,
wherein the coating system comprises an electrostatically operating application apparatus having a dispensing device by means of which a coating material is able to be dispensed, and at least one feed reservoir for coating material, which is connected to an input valve device via an inlet line and to the dispensing device via a supply line,
the insulation device comprising:
a duct having a clearing body that is movable in the duct, the clearing body having an electrically insulating material and being movable between a parked position and an insulation position,
wherein the clearing body is configured such that, while moving from the parked position to the insulation position or from the insulation position to the parked position, the clearing body frees an inner lateral surface of the duct of material such that an electrical insulation section is able to be formed between the at least one feed reservoir and the input valve device,
wherein the clearing body is movable by means of a fluid pressure, and
wherein the clearing body has an insulation portion for electrical insulation and a line portion for a coating-material line so that coating material can pass through the clearing body through the coating-material line when the coating material travels from the inlet line to the supply line.

2. The insulation device of claim 1 , wherein the clearing body has a longitudinal axis in a direction of movement, and the insulation portion and line portion are arranged along this longitudinal axis.

3. The insulation device of claim 1 , wherein the insulation portion defines an insulation space in the duct.

4. The insulation device of claim 3 , wherein the insulation space is fillable with an insulation material.

5. The insulation device of claim 1 , wherein the coating-material line has a first line connection located radially with respect to the direction of movement and a second line connection located at an end side of the clearing body.

6. The insulation device of claim 5 , wherein, in the insulation position, the first line connection allows a line connection between the coating-material line and the at least one feed reservoir and/or the second line connection allows a line connection between the coating-material line and the dispensing device.

7. A coating system for coating objects, comprising:
an electrostatically operating application apparatus having a dispensing device by means of which a coating material is able to be dispensed, and at least one feed reservoir for coating material, which is connected to an input valve device via an inlet line and to the dispensing device via a supply line, wherein
the coating system comprises the insulation device of claim 1 .

Assignees

• Eisenmann Se

Inventors

• Meier Ralph
• Reichler Jan

Classifications

• B05B12/1481 Primary

  comprising pigs, i.e. movable elements sealingly received in supply pipes, for separating different fluids, e.g. liquid coating materials from solvent or air (cleaning pipes with pigs B08B9/0557, pigs per se F16L55/26) · CPC title

• B05B5/1633

  the arrangement comprising several supply lines arranged in parallel, each comprising such an intermediate container · CPC title

• B05B5/1675

  the supply means comprising a piston, e.g. a piston pump · CPC title