Patent ID: 6305421
Filing Date: 2001-10-23
Classification: D06B,F16L

Abstract:
A device for applying a fluid for applying a fluid processing agent to a web comprising:an application head for applying the fluid to the web;means for transporting the web past the application head;a feed line for supplying the fluid processing agent to the application head, the feed line having an inner diameter;a pressure accumulator arranged in the fluid feed line; the pressure accumulator comprising:a tubular housing the housing forming an annular chamber with an inner diameter, the inner diameter of the annular chamber being larger than the inner diameter of the feed line;an elastic sleeve, the diameter of the elastic sleeve being substantially the same as the inner diameter of the feed line, the elastic sleeve sealingly fastened to the housing to form a fluid passageway and separate the passageway from the annular chamber;a control valve in fluid communication with the annular chamber, a vacuum source and a pressure source, wherein the control valve selectively applies either a vacuum or pressure to the annular chamber.