Patent ID: 6824614
Filing Date: 2004-11-30
Classification: B05B,B05C,Y10T

Abstract:
A gumming device for applying gum (2) to an article (4); the gumming device (1) comprising an applicator body (6), which has a central axis (7), is cylindrically symmetrical with respect to the central axis (7), and has a lateral surface comprising an application surface (22) which comes into contact with said article (4) to apply said gum (2) to the article (4), drive means (11) for rotating said applicator body (6) about said central axis (7), at least one channel (17) extending inside said applicator body (6) and having an end opening (21) at said application surface (22), and supply means (24) for supplying said gum (2) under pressure to said channel (17); said supply means (24) comprising a pump (41) for said gum (2), at least one supply conduit (25, 28) connecting an output of said pump to said channel (17), and a valve (29) for closing the supply conduit (25, 28), which is located along said supply conduit (25, 28) and is carried by said applicator body (6); wherein said channel (17) comprises at least one capillary portion (20).