Patent ID: 11890630
Assignee: DüRR SYSTEMS AG
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 11:
12. A paint supply system for a coating installation comprising:
a) a ring line adapted for circulation of a coating agent,
b) a ring line tapping point in the ring line adapted for extracting the coating agent from the ring line,
c) a tap line leading from the ring line tapping point to a closed end,
d) a consumer connected to the tap line between the ring line tapping point and the closed end, the consumer supplied with the coating agent,
e) means for alternately moving the coating agent forward and backward in the tap line in order to avoid settling of the coating agent in the tap line, the means for alternately moving the coating agent forward and backward in the tap line including a cushion of a compressible medium at the closed end of the tap line, the cushion of the compressible medium reflecting pressure shocks from the tap line and thereby alternately moves the coating agent standing in the tap line forwards and backwards.