Fiber reinforced molded products and processes
AssigneeAdvanced Composites, Inc.
InventorsRandall J. Philpot, Daniel K. Buckmiller, Eric Richard Welsh, David Wayne Erickson
Life of this patent
Estimating the term…
Abstract
A method for manufacturing elongate articles such as baseball bats, paddles, oars, hockey sticks, generic tubing and other articles and articles including molded material molded about a preform. The preferred method includes manufacturing a filament wound preform and reaction injection molding material about the preform to result in a finished article. The preferred baseball bat includes an elongate filament wound preform about which a quantity of urethane foam is molded.
Claims12
A baseball bat including a first end, a handle adjacent the first end, a second end, a barrel adjacent the second end, a tapered portion between the handle and the barrel, said baseball bat comprising:
- a hollow filament wound composite preform comprising a toughened resin matrix and continuous reinforcing fibers;
- and
- a quantity of hardened moldable material comprising urethane molded about the exterior surface of said composite preform;
- said moldable material further comprising a filler material or a mat material which reinforces said moldable material;
- wherein said resin matrix is rubber modified epoxy;
- and
- wherein said reinforcing fibers are graphite, carbon, fiberglass, E-glass, aramid, polyamide, polyethylene or polyester.
Dependencies are inferred from the claim text.