Module having collapsible properties

Details Module having collapsible properties Module having collapsible properties

1976-09-08

1978-05-16

Perham, Alfred C.

Static structures (e.g., buildings)

Shaft or openwork, axially extensible

52108, 52646, 248421, E04G 2502, E04H 1218

Patent

active

040891470

ABSTRACT:
A collapsible module comprising an upper and lower member disposed in an opposite relationship to each other, each of said members comprising a base plate or frame with a plurality of side plates or frames hingedly connected at their proximal end thereto, the distal end of the side plates or frames of the lower member being hingedly connected to the distal end of the side plates of the upper member.

REFERENCES:
patent: 483777 (1892-10-01), Bredsvold
patent: 3416267 (1968-12-01), Maniu
patent: 3435570 (1968-04-01), Berry
patent: 3606719 (1971-09-01), Berry
patent: 3794283 (1974-02-01), Furno
patent: 3904853 (1975-09-01), Shoup et al.

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