Free flow shaft-stringer

Details Free flow shaft-stringer Free flow shaft-stringer

1996-01-11

1998-10-06

Swinehart, Ed L.

Buoys, rafts, and aquatic devices

Water skimming or walking device

Surfboard

114125, B63B 3579

Patent

active

058168753

ABSTRACT:
A hollow shaft (10) capped at both ends (60a/b) contains a fluid (40) encompassing approximately half the volume of the shaft. The shaft is inlaid to a cavity (50), fitting snugly into a wood stringer (20). When stringer is assembled for shapable mode, foam blanks (30a/b) have been glued to it for a workable product.

REFERENCES:
patent: 3254622 (1966-06-01), Bramson
patent: 4867721 (1989-09-01), Fisher

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