Patent ID: 7575635
Filing Date: 2009-08-18
Classification: B05C,B27G

Abstract:
1. An apparatus for applying glue onto a planar object, the planar object advancing essentially horizontally along a path of travel, said apparatus comprising a beam having an extension length across said path of travel and being provided with internal glue flow channel means, glue inlet pipes distributed over the length of the beam to communicate with said internal flow channel means, application nozzles distributed over the length of the beam and communicating with said glue flow channel means, the internal glue flow channel means comprising a cylindrical case formed into the beam and extending along the total length thereof, a pipe element provided into the cylindrical case and mounted into the case with a sliding fit to extend along the case length, the pipe element being equipped with openings for forming a constant in-flow connection from said glue inlets pipes into the pipe element, as well as openings for forming an out-flow connection from the pipe element to the application nozzles in one position of the pipe element in the case for closing said out-flow connections in another position of the pipe element in the case, wherein said pipe element is provided at least from one end thereof with a return flow for the glue through the pipe in the position of the pipe element where the application nozzles are closed.