Conveyors – chutes – skids – guides – and ways – Rollerways – Submerging and rising
Reexamination Certificate
2005-01-14
2008-11-25
Hess, Douglas A (Department: 3651)
Conveyors, chutes, skids, guides, and ways
Rollerways
Submerging and rising
C193S0350MD
Reexamination Certificate
active
07455164
ABSTRACT:
An expandable and collapsible structure includes a plurality of roller supports, each roller support including at least two ends separated by a non-zero distance and at least one roller disposed at one of the at least two ends of the roller support, and at least one folding assembly disposed between two of the plurality of roller supports.
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Hess Douglas A
World Shelters, Inc.
WRB-IP LLP
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