Device for applying a patterning agent to a line
AssigneeEduard Kusters Maschinenfabrik GmbH & Co. KG
InventorsKarl-Heinz Ahrweiler, Heinz Grüber, Alfred Keller, Walter Schumacher
Life of this patent
Estimating the term…
Abstract
A device for applying a patterning liquid to a web, particularly to a carpet web, has an exit slit with a plurality of valves distributed over the width of the web and arranged ahead of it, which can all be activated independent of one another, and which each supply the patterning liquid to a specific width section of the application slit. The valves are located as close as possible to the exit location so that the segment from the closing location of the valves to the exit location is as short as possible.
Claims13
A device for applying a patterning agent to a carpet web, comprising:
- an application bar extending crosswise and parallel to the carpet web;
- a slide surface disposed on a first face of the application bar, adapted for contacting the carpet web;
- a slit-like outlet zone formed in the application bar, opening into the slide surface, and extending along a working width of the application bar;
- support means disposed opposite to the slit-like outlet zone, adapted for biasing the carpet web towards the slit-like outlet zone;
- a plurality of feed lines supplying the patterning agent to the slit-like outlet zone;
- and
- a plurality of valves disposed in the application bar, corresponding to the plurality of feed lines, adjacent to the slit-like outlet zone;
- each one of the plurality of valves further comprising:
- a cylindrical valve chamber;
- a valve body rotatable on an axis of rotation substantially perpendicular to the carpet web;
- an outlet channel formed in the valve body along the axis of rotation, opening into the slit-like outlet zone;
- an inlet channel, fluidly connected to the outlet channel;
- a feed channel opening into the valve chamber, fluidly connected to the corresponding feed line;
- and
- at least one additional feed channel opening into the valve chamber, fluidly connected to a corresponding one of a plurality of additional feed lines supplying an additional patterning agent to the slit-like outlet zone;
- wherein the valve body is rotatable to bring the inlet channel in fluid connection with one of the feed channel and the at least one additional feed channel.
Dependencies are inferred from the claim text.