Construction unit

Details Construction unit Construction unit

1976-11-24

1979-03-06

Perham, Alfred C.

Static structures (e.g., buildings)

Combined

52223R, 52303, 52406, 52576, E04C 236

Patent

active

041423380

ABSTRACT:
A wall unit having a vapor-proof evacuatable envelope and a supporting core in the envelope. Wall shells form the outer sides of the element, and screw means extend through and rigidly interconnect the wall shells and thus the element, the screw means having flanges which can be adjusted toward or away from each other to adjust the pressure applied to the wall element by the screw means. Horizontal and vertical reinforcement means are pre-stressed and cast in the outer wall shell.

REFERENCES:
patent: 468132 (1892-02-01), Dieterich
patent: 1053231 (1913-02-01), Schweikert
patent: 1054635 (1913-02-01), Cagnassi
patent: 2914147 (1959-11-01), Millard
patent: 3086273 (1963-04-01), Welborn
patent: 3201076 (1965-08-01), Deleuze
patent: 3232638 (1966-02-01), Hollander
patent: 3295278 (1967-01-01), Muhm
patent: 3325198 (1967-06-01), Cruse
patent: 3369334 (1968-02-01), Berg
patent: 3567816 (1971-03-01), Embree
patent: 3803784 (1974-04-01), Becker
patent: 3803784 (1974-04-01), Becker
patent: 3834096 (1974-09-01), Becker

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