Ladder
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United States of America Patent
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Mar 7, 2017
Grant Date -
Jun 16, 2011
app pub date -
Feb 21, 2011
filing date -
Aug 21, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A ladder having platform steps, the ladder being convertible between a deployed position for supporting a person or other load, to a storage, scaffold, or ramp position in which the steps lie in a generally planar arrangement. When deployed, the ladder steps remain parallel to each other and form a series of parallelograms with the rails of the ladder. The ladder is also capable of being locked or secured at various angles of deployment. The ladder further includes receivers to selectively receive accessories such as wheels, hooks, handles, or pads. The addition of accessories such as wheels allows the ladder in the storage position to be used as a creeper, dolly, or cart.
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