Static structures (e.g. – buildings) – Stepped; e.g. – stair – With additional building feature
Patent
1988-12-28
1990-01-16
Friedman, Carl D.
Static structures (e.g., buildings)
Stepped; e.g., stair
With additional building feature
52185, 52189, E04F 1100
Patent
active
048934429
ABSTRACT:
Stair apparatus and method of manufacture, wherein the stair apparatus has concrete tread pads and landings which are poured and set during manufacture so that pouring and setting of the concrete does not have to be done in the field, thereby saving much labor and time. The method includes a unique step of clamping the step elements between the stringer elements so that the step elements are firmly held in proper position during welding thereof to the stringer elements. The landings are supported in a novel manner in a stairwell, and the stair assemblies are supported between the landings.
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Graham James M.
Schaack Edward F.
Duraflite, Inc.
Friedman Carl D.
Hager Lawrence
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