Intelligent control system for extrusion head dispensement
AssigneeFAStar, Ltd.
InventorsOcie T. Snodgrass, Gregory M. Gibson, Carl W. Newquist
Life of this patent
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Abstract
A control system for assisting in applying a uniform layer of liquid to a substrate. The control system monitors a fluid pump advantageously integrated directly with an extrusion head. The pump receives the material to be deposited from a remote reservoir and controls dispersion of fluid to the extrusion head. The pump dispense rate is controlled by hydraulic pressure selectively applied by a flow control motor. The control system ensures that a steady-state flow of the liquid is maintained while preventing transient perturbations during initial extrusion startup.
Claims25
A system for extruding material uniformly onto a surface, where the extrusion process is subject to starting and stopping, the system comprising:
- a pump head for accepting the extrusion material for delivery to the surface;
- means for selectively directing controlled amounts of accepted material from said pump head to the surface and amounts of said accepted material away from said surface;
- said selective directing means functionally connected to said pump head;
- and
- means for monitoring the amount of extrusion material directed to the surface and monitoring the amount of extrusion material directed away from the surface;
- said
- monitoring means functionally connected to said means for selectively directing.
A head system for coating a flat surface, said head system including:
- an opening for depositing coating material on said flat surface as said flat surface moves relative to said opening;
- a control for providing selective amounts of said coating material to said opening;
- and
- a monitor for observing the surface upon which said coating is being deposited;
- wherein said control includes the storage of parameters which are to be compared to parameters monitored by said monitor.
A head system for coating a flat surface, said head system including:
- an opening for depositing coating material on said flat surface as said flat surface moves relative to said opening;
- a control for providing selective amounts of said coating material to said opening;
- and
- a monitor for observing the surface upon which said coating is being deposited;
- wherein said coating material is deposited in discontinuous batches and wherein said monitor is operative to provide signals to said control to effect said selective amounts of coating.
Dependencies are inferred from the claim text.