Abstract: A circular staircase tread (10), capable of being formed in one piece, the tread having a flexible stacking (18), positioning and locking mechanism which allows on-site adjustment of the angular positioning of the treads in relation to each other and the on site modification of the resulting staircase.
Type:
Grant
Filed:
March 6, 1991
Date of Patent:
February 18, 1992
Assignees:
Edwin H. Paul, James V. Leicht, Joseph P. Manna