Stairway apparatus and method of manufacture

Details Stairway apparatus and method of manufacture Stairway apparatus and method of manufacture

1986-11-13

1989-06-13

Friedman, Carl D.

Static structures (e.g., buildings)

Processes

Requiring soil work

52188, 52189, 52191, E04B 100

Patent

active

048380059

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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patent: 4039345 (1977-08-01), Emig et al.
patent: 4244154 (1981-01-01), Weaver

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