Adjustable Stair Stringer and Railing
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United States of America Patent
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N/A
Issued Date -
Jul 7, 2011
app pub date -
Jan 1, 2011
filing date -
May 21, 1998
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An adjustable stair stringer and railing construction assembly. The assembly is adapted to use a pair of parallel stringer arms for each stair side, a riser/tread support bracket for each stair, and alignment and spacing elements for spacing the support brackets along the stringers. The brackets include formations for spacing the stringers apart and for spacing adjacent brackets along the stringers. The brackets are initially pivotally attached to each of the stringers so as to be rotatably movable about their pivotal attachment as the stringers are moved axially. Axial movement of the stringers with respect to each other establishes the angle of rise. Treads and risers are attached to the brackets to form stairs, and railings are attachable to the stringer and bracket assembly. The parallel stringers, brackets and spacers are also used in the preparation of formwork for pouring aggregate stairs, with the stringers, brackets and spacers being reusable.
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Cited Art Landscape
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