Sailboard and process for its production

Details Sailboard and process for its production Sailboard and process for its production

1983-12-16

1985-07-30

Blix, Trygve M.

Buoys, rafts, and aquatic devices

Water skimming or walking device

Surfboard

114357, 114 39, B63B 524

Patent

active

045319227

ABSTRACT:
In a sailboard made of a synthetic resin with an outer skin and a foam core, as well as with a stringer forming a longitudinal center wall, the outer skin (2) consists of a thermoplastic synthetic resin and of an upper and a lower half shell (3 and 4, respectively), formed by vacuum deep drawing. The half shells (3, 4) are continuously welded together along the equatorial line (8). The stringer (5) is integrally molded in double-wall fashion to the upper one and/or the lower one of the half shells (3, 4) with a profile that is U-shaped over at least the largest part of its length, and is welded, along the base of its U-shaped profile, to the respectively opposed half shell (3 or 4). The profile cavity of the stringer (5) is filled with glued-in-place hard foam elements (12) and sealed by profiled strips (14). The foam core (11) consists of a foam composition injected into the cavity defined by the welded-together half shells (3, 4).

REFERENCES:
patent: 3929549 (1975-12-01), Smith
patent: 4065337 (1977-12-01), Alter et al.
patent: 4120632 (1978-10-01), Stoeberl
patent: 4383955 (1983-05-01), Rubio et al.

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