Foldable ladder
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United States of America Patent
Stats
-
Jun 4, 1985
Issued Date -
N/A
app pub date -
Apr 4, 1984
filing date -
May 18, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ladder including a lower step section and a strut pivotally connected together at their upper ends for swinging movement between a collapsed position toward each other and a downwardly divergent erected position, an upper step section pivoted to the upper end of the lower step section for swinging movement between a folded position along the lower step section and an erected position inclining as an extension of the lower step section, and a catch pivotally connected to the upper step section for swinging movement between a gravitationally depending retracted position along the upper step section when the ladder is folded to a gravitationally depending position from the upper step section to hooked engagement with a lug on the lower step section when the upper step section is extended.
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Cited Art Landscape
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