Foldable, expandable framework for a variety of structural...

Details Foldable, expandable framework for a variety of structural... Foldable, expandable framework for a variety of structural...

2006-12-26

2006-12-26

Friedman, Carl D. (Department: 3632)

Tent, canopy, umbrella, or cane

Portable shelter

Framework

C135S129000, C135S135000, C135S137000, C052S645000

Reexamination Certificate

active

07152614

ABSTRACT:
A foldable, deployable framework for a structure has a lower hub having a first central axis, sets of tracks, masts, and rafters connected pivotally to the lower hub, to one another, and to an upper hub in a manner that allows the framework to be folded into one, two or three small packages, and to be deployed into a structural frame supporting floors, walls, and roof for an enclosed structure. In different versions folding and deployment is accomplished in a different way. Structures based on the framework can be made for many and varied purposes.

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patent: 6766623 (2004-07-01), Kalnay
patent: 2005/0060951 (2005-03-01), Kalnay

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