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US 10,807,829 B2Granted
Reinforced wood fiber core
AssigneeSouhegan Wood Products Inc.
InventorRandolph A Dunn
Life of this patent
Estimating the term…
Abstract
A winding core with improved beam and hoop strength and diminished friability and method for manufacturing such a core are provided, the winding core comprising: an extruded wood fiber core member; and at least one preformed paper shell member having a split seam parallel to its major axis, the shell being adhered to an exterior surface of the extruded wood fiber core member and a secondary shell of wooden staves.
Claims12
A winding core, the winding core comprising:
- An extruded wood fiber core member;
- At least a first paper shell member said shell member being adhered to an exterior surface of said extruded wood fiber core member and;
- A wooden shell layer comprising a plurality of wood staves disposed around the external circumference of said first paper shell member.
A method for manufacturing a winding core, said method comprising:
- Providing an extruded wood fiber core member having an external diameter;
- Splitting a first paper tube along a line parallel to said first tube's major axis, said first tube having an interior diameter less than the external diameter of said extruded wood fiber core member;
- Applying an adhesive to said extruded wood fiber core member;
- Opening said paper tube along said line and placing said paper tube around said extruded wood fiber core member;
- and
- Clamping said tube to said extruded wood fiber core member and allowing said adhesive to cure;
- and
- Affixing wooden staves parallel to the major axis of said extruded fiber core.
5 more elements
Dependencies are inferred from the claim text.