Method and apparatus for manufacturing open core elements from web material
OwnerCarl R. Marschkeinventor
Life of this patent
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Abstract
A continuous, fully automated and highly productive system for the production of open core elements utilizes various formations of fluted input webs which are cut into strips, glued, cross-transferred, and serially upended for placement against preceding strips to build up an open core element. The open core elements are useful in the manufacture of structural members such as doors, floor panels and all panels.
Claims20
A method for continuous manufacture of open core elements, comprising the steps of:
- (1) forming two composite web halves each comprising a smooth web and a fluted web;
- (2) orienting said composite web halves with the exposed fluted web flutes facing up;
- (3) applying an adhesive to the exposed flute tips of one web half;
- (4) adhering the other web half by its smooth web to the glued flute tips of said one web half to form an open face double wall web;
- (5) slitting the open face double wall web longitudinally to form a plurality of adjacent equal width open face double wall strips;
- (6) applying an adhesive to the exposed flute tips of said open face double wall strips;
- (7) cutting said strips transversely to a common selected length, and,
- (8) upending the strips onto common lateral strip edges and adhering the glued flutes of each strip to the smooth web of the next adjacent strip to form an open core element.
A method for the continuous manufacture of open core elements, comprising the steps of:
- (1) forming a composite web comprising at least one smooth web and a fluted web;
- (2) orienting said composite web with the fluted web flutes facing up;
- (3) slitting the web longitudinally to form a plurality of adjacent equal width strips;
- (4) applying an adhesive to the exposed flute tips of said plurality of strips;
- (5) cutting said strips transversely to a common selected length;
- and,
- (6) upending the strips onto common lateral strip edges and adhering the glued flutes of each strip to the smooth web of the next adjacent strip to form an open core element.
A method for continuous manufacture of open core elements, comprising the steps of:
- (1) forming a composite web from two webs including at least one fluted web;
- (2) orienting said composite web with exposed fluted web flutes facing up;
- (3) slitting the composite web longitudinally to form a plurality of adjacent equal width strips;
- (4) applying an adhesive to the exposed upwardly facing flute tips of said strips;
- (5) cutting said strips transversely to a common selected length;
- and,
- (6) upending the strips onto common lateral strip edges and adhering the glued flutes of each strip to the next adjacent strip to form an open core element.
Dependencies are inferred from the claim text.