B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
114/12, 114/25
B63B 35/71 (2006.01) B63B 35/79 (2006.01)
Patent
CA 1201330
ABSTRACT OF THE DISCLOSURE In a plastic sail board having an outer skin, a foam core and a stringer that forms a longitudinal centre wall, the outer skin (2) consists of thermoplastic material and of an upper and a lower half section (3, 4, respectively) formed by a vacuum deep drawing process. The half sections (3, 4) are welded to each other around the equatorial centre line (8). The stringer (5) is formed as one piece on the upper and/or lower of the half sections (3, 4), is of a U-shape throughout at least the greatest portion of its length, and is welded at the cross piece of its U-profile with the half section (3, 4, respectively) that is opposite to it in each instance. The profile hollow chamber of the stringer (5) is filled with rigid foam components (12) cemented into position and sealed off by a shaped bar (14). The plastic core (11) consists of a foam mass injected into the hollow chamber formed by welding the half sections (3, 4) to each other.
443515
Fetherstonhaugh & Co.
Schutz Udo
LandOfFree
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