Fold and roll retractable locator

Static structures (e.g. – buildings) – With stadium or auditorium feature – Movable stage

Patent

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Details

521265, 403246, 403174, E04H 326

Patent

active

053178424

ABSTRACT:
A fold and roll platform assembly having a pair of platform panels, and support units for supporting the platform panels on an underlying support structure. Each support unit has a locator pin mounted on a frame for movement from a retracted position to an upwardly extending position for engagement in a hole in a platform panel to locate the panel. The locator pin can be retracted into a recess provided in the frame.

REFERENCES:
patent: 2335046 (1943-11-01), Droeger
patent: 2602012 (1952-07-01), Doty
patent: 2669117 (1954-02-01), Fuhrmann
patent: 2978754 (1961-04-01), Wilson
patent: 3168793 (1965-02-01), Gibson
patent: 3354596 (1967-11-01), Schafer
patent: 4493136 (1985-01-01), Groutage et al.
patent: 4599010 (1986-07-01), Hocking
patent: 4638604 (1987-01-01), Rogers et al.
patent: 4951925 (1990-08-01), Schultz et al.
patent: 5028164 (1991-07-01), Williams

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