Collapsible shelter

Details Collapsible shelter Collapsible shelter

1976-06-11

1978-01-17

Perham, Alfred C.

Static structures (e.g., buildings)

Shaped or strengthened by fluid pressure

Fluid pressure is subatmospheric

E04B 134

Patent

active

040684180

ABSTRACT:
An inflatable structural member and a structure employing such inflatable members. The structural members each comprise an inner, air-impermeable inflatable tube made from an inexpensive, extruded, thermoplastic material; and an outer flexible sheath restraining the inner tube when it is inflated. The sheath is also constructed to shape the tube to a desired curved shape.

REFERENCES:
patent: 2066960 (1937-01-01), Cook et al.
patent: 2297150 (1942-09-01), Hunter
patent: 3172166 (1965-03-01), Imbrecht
patent: 3258883 (1966-07-01), Campanaro et al.
patent: 3364632 (1968-01-01), Isaac
patent: 3599677 (1971-08-01), O'Brien
patent: 3899853 (1975-08-01), Wertman

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