Winding stair
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 14, 1996
Grant Date -
N/A
app pub date -
Aug 15, 1995
filing date -
Aug 15, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A winding stair for spiral ascension within a building structure. The stair includes a newel post which has a plurality of elongated slots horizontally formed around the periphery at different elevations. Each steps of the winding stair is provided with an arched end plate located along an inner narrow end of the step. With each arched end plate formed to hug the outer surface of the newel post. A curved flange portion extends upwardly along a top edge of the arched end plate. Steps are attached to the newel post as by inserting the curved flange portion within the elongated slots and allowing the arched end plate to rest against the periphery of the newel post. Aligned openings in each of the newel post and arched end plate, receive fasteners to secure the step to the newel post. The curved flange also has openings aligned with openings in the newel post receiving fasteners which serves to further secure the step to the post. At least one baluster is inserted through at least one through hole located at an outer broader end of each step. With a hand rail being secured to an upper end of the balusters.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully