Cross-directional steam application apparatus
AssigneeMeasurex Corporation
InventorsMathew G. Boissevain, Tobias J. Boissevain, Anthony D. Foskett
Life of this patent
Estimating the term…
Abstract
An apparatus, including a manifold pipe, for applying variable amounts of steam to sections of a calenderable material to control certain properties of the material such as gloss. Built-in steam flow control valves are provided along the manifold pipe to control the amount of steam applied to each section. Bucket nozzles provided on the valves decrease the velocity of the steam jetted from the valves and eliminate any condensate present in the steam before discharging the steam against a surface of the calenderable material. Condensate which may form on the apparatus may be channeled away from the calenderable material by a pair of gutters.
Claims10
An apparatus for distributing a controlled amount of working fluid on a surface of a calenderable sheet of material, comprising:
- (a) a manifold pipe, the manifold pipe comprising an inlet, an outlet, and a plurality of orifices formed at intervals along the length of the manifold pipe;
- and
- (b) a plurality of controllable discharge means for controllably discharging working fluid, each discharge means in flow communication with one of the plurality of orifices of the manifold pipe, wherein each discharge means includes a bucket nozzle comprising a container, a plurality of deflectors and at least one drain.
An apparatus for distributing a controlled amount of working fluid on a surface of a calenderable sheet of material, comprising:
- (a) a manifold pipe, the manifold pipe comprising an inlet, an outlet, and a plurality of orifices formed at intervals along the length of the manifold pipe;
- and
- (b) a plurality of controllable discharge means for controllably discharging working fluid, each discharge means in flow communication with one of the plurality of orifices of the manifold pipe, wherein each discharge means includes a bucket nozzle for eliminating working fluid not in a gaseous phase, comprising a container, at least one drain and a plurality of deflectors.
An apparatus for distributing a controlled amount of working fluid on a surface of a calenderable sheet of material, comprising:
- (a) a manifold pipe, the manifold pipe comprising an inlet, an outlet, and a plurality of orifices formed at intervals along the length of the manifold pipe;
- (b) a plurality of controllable discharge means for controllably discharging working fluid, each discharge means in flow communication with one of the plurality of orifices of the manifold pipe;
- and wherein the manifold pipe includes a pair of gutters for channeling liquid away from the calenderable sheet of material, the gutters being mounted on either side of the discharge means.
Dependencies are inferred from the claim text.