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US 4,229,861 AGranted
Material converger
AssigneeE. I. Du Pont de Nemours and Company
InventorsEdgar A. Campo, Robert B. Lewis
Life of this patent
Estimating the term…
Abstract
A material transporting device is disclosed wherein material is pneumatically moved along a louvered surface and converged to exit from the device in a narrowed pattern. Use of the device is particularly directed to rapid handling of scrap web material.
Claims8
A material converger comprising an air feed plenum having an inlet end and an outlet end,
- a surface on the plenum decreasing in width from the inlet end to the outlet end,
- a multitude of louvers arranged at an acute angle with a reference line on the plenum surface from the center of the inlet end to the center of the outlet end, said louvers being from 2 to 15 centimeters long, less than one-fourth the width of the surface, more than one-fourth and less than three louver lengths apart, and directed toward the outlet end.
A web material waste handling apparatus comprising
- a wide web delivery means;
- a web material converger operatively engaged with the wide web delivery means to receive and collapse wide web material comprising
- an air feed plenum having an inlet end and an outlet end,
- a surface on the plenum decreasing in width from the inlet end to the outlet end,
- a multitude of louvers arranged at an acute angle with a reference line on the plenum surface from the center of the inlet end to the center of the outlet end,
- said louvers being from 2 to 25 centimeters long, less than one-fourth the width of the surface, more than one-fourth and less than three louver lengths apart, and directed toward the outlet end.
3 more elements
Dependencies are inferred from the claim text.