Displaceable openable and closable covering structure

Details Displaceable openable and closable covering structure Displaceable openable and closable covering structure

1987-05-26

1988-11-29

Scherbel, David A.

Static structures (e.g., buildings)

Conical or radially ribbed cover

52111, 52641, 135109, 135905, 403172, 403176, E04B 700

Patent

active

047871822

ABSTRACT:
A central hub carries a main pivotal shaft, on respective sides of which extend pivotal links, to each of which is fixed an end of a truss which trusses can be moved together and parallel when the links are in a straight line for displacement of the structure, and can be spaced and radiating when the links are disposed along a closed contour, for use of the structure.

REFERENCES:
patent: 1418608 (1922-06-01), Akers
patent: 2260369 (1941-10-01), Ebenhack
patent: 3017893 (1962-01-01), Greenbie
patent: 3138828 (1964-06-01), Greenbie
patent: 3368575 (1968-02-01), Besonen
patent: 4070846 (1978-01-01), Sohlberg
patent: 4170852 (1979-10-01), Danis, Jr.
patent: 4192334 (1980-03-01), Daws
patent: 4450851 (1984-05-01), Beavers

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