Patent ID: 9303367
Filing Date: 2016-04-05
CPC Classification: E01C

Claim Text:
1. An applicator ( 11 ) for application of a viscous mass ( 31 ) to a surface ( 33 ) comprising a bottom wall ( 13 ) and a heated chamber ( 32 ) in communication with bottom wall openings ( 12 ) controlled by valves ( 14 ) allowing dropwise discharge of the viscous mass to the surface, characterized in that each of the valves ( 14 ) are non-packed and comprise an outer sleeve ( 15 ) having a smooth internal surface and at least one through opening ( 16 ) in a wall of the outer sleeve ( 15 ), and a valve plug ( 17 ) with a smooth outer surface configured to substantially conform to the internal surface of the outer sleeve ( 15 ), the valve plug ( 17 ) being arranged to be reciprocated from a closed position completely sealing the at least one through opening ( 16 ) in the wall of the outer sleeve ( 15 ), to an elevated open position in which at least the lowermost part of the at least one through opening ( 16 ) is uncovered, thereby allowing viscous mass ( 31 ) to pass therethrough from the outside of the outer sleeve ( 15 ) towards one of the bottom wall openings ( 12 ).