Roof access arrangements
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United States of America Patent
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Jan 31, 2017
Grant Date -
Jan 9, 2014
app pub date -
Mar 22, 2012
filing date -
Mar 22, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A roof ladder construction includes a roof hook assembly and a ladder to which the roof hook assembly is pivotally mountable for movement between two operative positions, a first of the operative positions being a position in which the roof hook assembly may extend over a roof ridge for engagement with a remote roof surface at a side of the roof opposite that at which the ladder is positioned and the other, second position being one in which the roof hook assembly does not engage with the remote surface of the roof.
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Cited Art Landscape
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