Apparatus and method for liquid application to a sheet material
AssigneePhilip Morris Products S.A.
InventorsRolando CAVICCHIOLI, Ugo FRANCIOSO
Life of this patent
Estimating the term…
Abstract
An apparatus for liquid application to a sheet material is provided, the apparatus including: a nozzle configured to spray a liquid on a sheet material arrangeable below the nozzle; and a concave shield arranged around the nozzle, the concave shield including a collection channel provided at an inner periphery of the shield, the collection channel being arranged to run circumferentially along the inner periphery of the concave shield, and at least one drain hole being arranged in the collection channel and configured to drain collected liquid from the collection channel.
Claims19
1-15. (canceled)
An apparatus for liquid application to a sheet material, the apparatus comprising:
- a nozzle configured to spray a liquid on a sheet material arrangeable below the nozzle;
- and
- a concave shield arranged around the nozzle,
- wherein the concave shield comprises a collection channel provided at an inner periphery of the shield,
- wherein the collection channel is arranged to run circumferentially along the inner periphery of the concave shield, and
- wherein at least one drain hole is arranged in the collection channel and configured to drain collected liquid from the collection channel.
A method for liquid application to a sheet material, the method comprising:
- providing a sheet material and a nozzle for liquid application;
- transporting the sheet material past the nozzle, thereby applying liquid to the sheet material by the nozzle;
- trapping liquid not applied to the sheet material with a concave shield arranged around the nozzle;
- letting trapped liquid accumulate and flow along inner side walls of the concave shield;
- collecting trapped liquid in a collection channel provided at an inner periphery of the concave shield along the entire inner periphery of the shield;
- and
- draining collected liquid from the collection channel through at least one drain hole arranged in the collection channel.
Dependencies are inferred from the claim text.