Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Starting material is nonhollow planar finite length preform...
Reexamination Certificate
2002-09-18
2008-12-09
Lee, Edmund H. (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Starting material is nonhollow planar finite length preform...
C264S554000, C264S322000, C264S316000, C425S388000, C425S403000
Reexamination Certificate
active
07462321
ABSTRACT:
A device for making panels with three-dimensional curvature from a sheet material, includes a forming impression (5) defined by a membrane (6) including an elastically stretchable skin (11), preferably in combination with a skeleton formed by a grid pattern of flexurally elastic battens (10) which are mobile in longitudinal translation relative to the skin, and a set of elements for selectively deforming the impression acting on the battens (10) of the membrane to impart thereto an adaptable three-dimensional curvature. The invention is particularly useful for making sails.
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Lee Edmund H.
Sail Innovation
Young & Thompson
LandOfFree
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