Static structures (e.g. – buildings) – Shaped or strengthened by fluid pressure – Fluid pressure is subatmospheric
Patent
1983-07-05
1986-12-02
Perham, Alfred C.
Static structures (e.g., buildings)
Shaped or strengthened by fluid pressure
Fluid pressure is subatmospheric
521696, 109 15, 135 94, 135115, E04H 910, E04G 1104, A45F 116
Patent
active
046254684
ABSTRACT:
Significant, life-saving protection from airborne, radioactive (fallout) particles due to nuclear explosions, nuclear reactor accidents, and other releases of radioactive particulate is provided by a double-wall tent structure quickly erectable over a central bench or hole. The tent structure includes tightly woven, rip-resistant fabric panels supported by tensile rods or wands, a tub floor extending into and lining a central trench or hole, and an exterior, light-reflecting, metalized, semi-transparent disposable membrane. The bottom circumferential edge of the outer membrane extends into a shallow trench or ditch, excavated around the perimeter of the inner tent structure. Dust particles settling onto the smooth exterior surface of the membrane slide off and are captured in the shallow ditch, thus minimizing direct or indirect radiation into the central trench or hole and its occupants. The perimeter of the outer membrane contains pockets for the storage of potable water and for anchoring of the outer membrane. The tub floor lining extending below the ground surface includes sealable pockets suitable for the storage of refuse and human waste during occupancy. Also described is a light-weight single membrane, plastic, portable tent, suitable for low-cost mass production.
REFERENCES:
patent: 3161990 (1964-12-01), Morris, Jr.
patent: 3598133 (1971-08-01), Abert
patent: 3660951 (1972-05-01), Cadwell
patent: 4265259 (1981-05-01), Gillis
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