Method for fabricating reinforced drain covers
OwnerLudo Deberghinventor
Life of this patent
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Abstract
A method of fabricating a solid drain cover wherein a plurality of reinforcement layers are inserted into a mold cavity and an unhardened polymer is injected into the mold cavity to surround the reinforcement layers. Each of the reinforcement layers includes a plurality of fiber strands positioned to extend across the mold cavity and are spaced by a predetermined distance. The reinforcement layers are attached to at least one layered spacer which is interposed between adjacent reinforcement layers. The drain cover is produced when the polymer has hardened in the mold cavity with the reinforcement layers and layered spacers embedded therein.
Claims23
A method of fabricating a composite drain cover, comprising the steps of:
- inserting a plurality of reinforcement layers into a mold having a cavity, each of said reinforcement layers including a plurality of fiber strands, the plurality of said reinforcement layers being positioned by means of at least one layered spacer interposed between two adjacent reinforcement layers;
- and then
- injecting at least one unhardened polymer into the mold cavity to thereby surround said reinforcement layers with said polymer in the mold cavity;
- and then
- hardening the polymer to form said composite cover in said mold cavity,
- wherein at least one reinforcement layer includes a plurality of fiber portions connected to one another to define a single continuous fiber strand, said continuous fiber strand being positioned in the mold cavity in generally straight and parallel rows such that the continuous fiber strand is surrounded by the hardened polymer.
Dependencies are inferred from the claim text.