Reversibly expandable three-dimensional structure

Details Reversibly expandable three-dimensional structure Reversibly expandable three-dimensional structure

1986-09-02

1988-10-25

Epstein, Henry F.

Stock material or miscellaneous articles

Collapsible article

4285428, 446488, A63H 3316

Patent

active

047803444

ABSTRACT:
A reversibly expandable three-dimensional structure made up of a grid of elements each comprising an essentially planar four sided central zone and a pair of substantially triangular flaps hingedly connected to two opposite sides of said central zone, the elements being hingedly joined to one another central zone to central zone and flap to flap. By including some elements wherein the central zones are tapered the expanded structure will be curved.

REFERENCES:
patent: 1802101 (1931-04-01), Wood
patent: 1997022 (1935-04-01), Stalker
patent: 2164966 (1939-07-01), Tutein
patent: 2922239 (1960-01-01), Glynn, Jr.
patent: 3302321 (1967-02-01), Walker
patent: 3945561 (1976-03-01), Strebelle
patent: 4140317 (1979-02-01), Ramney
patent: 4142321 (1979-03-01), Coppa
patent: 4492723 (1985-01-01), Chadwick

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