Vision panel assembly for fire door panels

Details Vision panel assembly for fire door panels Vision panel assembly for fire door panels

1992-03-16

1993-05-04

Scherbel, David A.

Static structures (e.g., buildings)

Facer held by stiffener-type frame

Self-supporting section attached to nonload bearing framing

52208, 49171, E04B 900

Patent

active

052070441

ABSTRACT:
A vision panel assembly for a fire door includes a frame structure and a glass vision panel which are mounted in a rectangular opening in the fire door. The frame structure includes a pair of frames which are anchored in grooves in the fire door and which are clamped against the glass vision panel. One frame is provided with fastener bars which are threadedly engaged by fastening screws for securing the frames together. Panel support elements extend through openings in the fastener bars for engaging edges of the glass vision panel to provide support therefor.

REFERENCES:
patent: 1171443 (1916-02-01), Larson et al.
patent: 1171444 (1916-02-01), Larson et al.
patent: 4259818 (1981-04-01), Stark
patent: 4947606 (1990-08-01), LaSee
Enlarged copies of Larson et al. 117443.
Enlarged copies of Larson et al. 1171444.

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