Ships – Boats – boat component – or attachment – Sectional
Patent
1980-03-31
1982-12-07
Blix, Trygve M.
Ships
Boats, boat component, or attachment
Sectional
114357, 114 56, B63B 700
Patent
active
043625193
ABSTRACT:
The present invention relates to the fabrication of boat hulls and other three-dimensional objects of thermoplastic sheet material. The process comprises heating a sheet of the material along a predetermined pattern of lines to a temperature at which the material is softened, placing the sheet in a jig with the material of the sheet still soft along the heated lines and folding it along the softened lines, and retaining the sheet in its folded state in the jig until the material along the said lines is cool and stiffens. The preferred thermoplastic material is polypropylene, and by reversely folding the sheet along selected fold lines an integral hinge can be induced. In making a foldable boat, the pattern of fold lines is such that the sheet in its folded state has the shape of the hull of a boat. A blank when so prepared can be rolled into extremely compact form for transportation and to erect the hull is merely unrolled and with a little manual assistance put into the required shape and secured. Gunwales, one or more stiffening members and one or more seats can readily be affixed.
REFERENCES:
patent: 3454694 (1969-07-01), Delaire
patent: 3529312 (1970-09-01), Robinsky
patent: 3771180 (1973-11-01), Tanabe
patent: 3900550 (1975-08-01), Oliver
patent: 4002417 (1977-11-01), Vecchiotti
Blix Trygve M.
Keen D. W.
LandOfFree
Boat hulls does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Boat hulls, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boat hulls will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1901144