Plastic and nonmetallic article shaping or treating: processes – Forming structural installations in situ – Uniting preform member with molding material
Patent
1990-05-15
1993-02-16
Aftergut, Karen
Plastic and nonmetallic article shaping or treating: processes
Forming structural installations in situ
Uniting preform member with molding material
4506, 521697, 52183, 52187, 52188, 249 14, 249 19, 249159, 249171, 249DIG3, 264 32, 264336, B28B 722, E04B 116, E04G 1306, E04H 400
Patent
active
051868741
ABSTRACT:
A method of constructing arcuate cement stairs in a pool includes (a) attaching a first arcuate form having a first form radius to the wall of the pool; (b) attaching a second arcuate form having a second form radius smaller than the first form radius to the wall in a plane above the first arcuate form; (c) attaching to the wall of the pool, inwardly of the first form, a first arcuate support band having a radius generally corresponding to the first form radius, the first band remaining in place when the first form is removed, and attaching to the wall of the pool, inwardly of the second form, a second arcuate support band having a radius generally corresponding to the second form radius, the second band remaining in place when the second form is removed; (d) pouring a curable cement-containing material into the space between the forms and the wall to form stairs; and (e) removing the arcuate forms to provide the stairs.
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patent: 4599835 (1986-07-01), Rinke
patent: 4625343 (1986-12-01), Bumgarner, Sr.
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