Sport boards with carbon fiber stringers

Details Sport boards with carbon fiber stringers Sport boards with carbon fiber stringers

2011-07-26

2011-07-26

Olson, Lars A (Department: 3617)

Buoys, rafts, and aquatic devices

Water skimming or walking device

Surfboard

C441S079000

Reexamination Certificate

active

07985111

ABSTRACT:
One or more tubular carbon fiber stringers are axially aligned with the lengthwise dimension of a water sport board, such as a surfboard. A tubular carbon fiber stringer may have vertical shaping tabs reaching opposed major surfaces of the board and laterally extending tabs that register the stringer position inside of a board by fitting in channels that tightly nest the stringer in the board. Tublar carbon fiber stringers, designed to extend more than half the length of a board, may be made by molding symmetric halves, then joining the halves together, or by winding carbon fiber around a mandrel, epoxying the fiber in place and removing the mandrel. Board blanks have openings to seat the tubular stringers, such as by seating in board halves, or a tubular stringer may be seated in an empty board blank mold with foam blown around the stringer.

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patent: 2008/0248701 (2008-10-01), Yeh
patent: 2009/0011667 (2009-01-01), Hayward et al.

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