Manufacturing container or tube from paper; or other manufacturi – Bending – Folding
Patent
1997-05-08
1999-09-07
Coan, James F.
Manufacturing container or tube from paper; or other manufacturi
Bending
Folding
493448, 493955, 493966, B21D 516, A63H 3316
Patent
active
059478853
ABSTRACT:
A variety of sheet materials can be tessellation folded with an infinite variety of patterns in a one-step folding process by placing the sheet material against a pallet having flat rigid segments and flexible hinges, exerting forces against the pallet in accordance with information as to the pattern desired to initiate folding, and continuing folding to the degree of folding collapse wanted. A heat setable material can be heated prior to folding so the material will be set as folded. An uncured cementitious material can be folded, and held in a mold until the material is cured. Due to natural pantographic degradation, a continous belt can be folded in one area, with sheet material to be folded being placed against the belt before folding, and removed as the belt unfolds.
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patent: 2826239 (1958-03-01), Villoresi
patent: 2901951 (1959-09-01), Hochfeld
patent: 2950656 (1960-08-01), Gewiss
patent: 3135174 (1964-06-01), Gewiss
patent: 4012932 (1977-03-01), Gewiss
patent: 5234727 (1993-08-01), Hoberman
patent: 5484378 (1996-01-01), Braithwaite
Coan James F.
Middleton James B.
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