Stair forming method and apparatus
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United States of America Patent
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-
Dec 31, 2013
Grant Date -
Oct 29, 2009
app pub date -
Oct 31, 2007
filing date -
Nov 14, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A stairway forming system includes a plurality of stacked, elongate stair riser form carriers, the carriers being longitudinally displaceable relative to one another. An anchoring unit anchors at least a lowermost riser form carrier in position relative to a substrate. A positioning assembly is attached to at least one of the riser form carriers and cooperates with the remaining riser form carriers for displacing the carriers in unison relative to one other to adopt a staggered operative configuration approximating an angle of the stairway to be formed.
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Cited Art Landscape
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