Collapsible conveyance folding transport chair folding...

Details Collapsible conveyance folding transport chair folding... Collapsible conveyance folding transport chair folding...

2006-07-18

2006-07-18

Shriver, J. Allen (Department: 3618)

Land vehicles

Wheeled

Extensible

C280S644000, C280S649000, C297S016200

Reexamination Certificate

active

07077422

ABSTRACT:
A collapsible, foldable support structure and conveyance has a frame assembly with multiple interconnected frame members, junction blocks located at intersecting ends of some of the frame members, and wheels attached to the junction blocks or directly to frame members. Fixtures are attached to or integrally formed with the junction blocks for mounting of wheels or other conveyances or components to the frame assembly. A support structure is attached to the frame assembly to support a load such as a human or cargo or both. In a folded configuration, the frame members are moved into a generally parallel arrangement and the junction blocks and conveyances attached to the junction blocks or frame members are drawn together. In one embodiment, two of the frame members are hinged, and the junction block associated with the hinged frame member is able to slide over the hinge. The hinged frame members also serve as a foot rest support when the frame assembly is in an unfolded configuration.

REFERENCES:
patent: 6082813 (2000-07-01), Chen
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patent: 6752414 (2004-06-01), Waldron et al.
patent: 6776433 (2004-08-01), Harrison et al.
patent: 2003/0071493 (2003-04-01), Miyagi
patent: 2004/0155434 (2004-08-01), Haury et al.
patent: 6-197821 (1994-06-01), None

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