Fiberglass cutting apparatus and method
AssigneeEtc. Industries Inc.
InventorBobby Ben Bennett
Life of this patent
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Abstract
Fiberglass filaments are cut into fiberglass staple fibers having a maximum predetermined length with an apparatus comprising a cutter to cut the filaments into fiber segments; a fiber aligner to align the fiber segments in a given direction; and a chopper for cutting said fiber segments transverse to the given direction at spaced intervals having a spacing equal to the predetermined length.
Claims14
An apparatus for cutting a plurality of fiberglass filaments to form fiberglass staple fibers having a maximum length comprising:
- a) a cutter having a cutting roller with a plurality of spaced, circular, cutting blades mounted thereon, and a pressure roller positioned parallel to said cutting roller and forming a nip therewith;
- b) a chopper having a chopping roller with a plurality of parallel chopping blades extending radially therefrom, and a pressure roller positioned parallel to said chopping roller and forming a nip therewith;
- and
- c) an aligner between said cutter and chopper to receive fiber segments from said cutter and discharge said fibers to said chopper, said aligner including grooves to align said fiber segments parallel to each other and transverse to said chopper blades.
A method of cutting a plurality of fiberglass filaments to form fiberglass staple fibers having a predetermined maximum length comprising:
- a) cutting said filaments into fiber segments;
- b) aligning said fiber segments parallel to each other along a pathway;
- and
- c) cutting said fiber segments to a predetermined length transversely of said pathway.
Dependencies are inferred from the claim text.