Depression rail and water stop for concrete building slabs

Details Depression rail and water stop for concrete building slabs Depression rail and water stop for concrete building slabs

1981-12-31

1984-08-21

Perham, Alfred C.

Static structures (e.g., buildings)

Installed screed or unit with specified feature retaining...

Stonelike material base type; e.g., concrete set

52 97, 52174, 52254, 52255, 52678, 404 7, E04F 1306

Patent

active

044662220

ABSTRACT:
A consumable depression rail and water stop for concrete building slabs wherein the rail when positioned forms a level for the concrete as it is poured and also acts as a guide to form a depressed area of the slab. The elongated rail also forms a water stop to prevent water from moving from the depressed area into a building. The rail is generally T shaped in cross-section, and may be cut into small pieces which are used as consumable supports for maintaining the rail in a fixed position.

REFERENCES:
patent: 389391 (1888-09-01), Landis
patent: 670001 (1901-03-01), Morss
patent: 1110369 (1914-09-01), Bagnell et al.
patent: 1349340 (1920-08-01), Hotchkiss
patent: 1789829 (1931-01-01), Moore
patent: 1881376 (1932-10-01), Hunter
patent: 3158962 (1964-12-01), Faase
patent: 3848376 (1974-11-01), Elmore

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