Fire resistant fitting floor holes

Details Fire resistant fitting floor holes Fire resistant fitting floor holes

1978-11-15

1981-06-02

Friedman, Carl D.

Static structures (e.g., buildings)

Controlled by condition responsive means

52221, 52232, E04N 900

Patent

active

042703182

ABSTRACT:
A fire resistant fitting for use in sealing a floor hole and including a pair of plates having an expandable material therebetween for securing the fitting in the hole and a fire resistant material suspended in the opening from the lower plate by a simple twistable metal tang.

REFERENCES:
patent: 3911635 (1975-10-01), Traupe
patent: 4061344 (1977-12-01), Bradley et al.

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