Window frame apparatus

Details Window frame apparatus Window frame apparatus

1987-09-17

1989-05-23

Ridgill, Jr., James L.

Static structures (e.g., buildings)

Facer held by stiffener-type frame

Self-supporting section attached to nonload bearing framing

52656, 52824, E04C 238

Patent

active

048318043

ABSTRACT:
A window frame apparatus includes flat metal inserts which are inserted into hollow plastic members which form a frame. The metal inserts are disposed so that the direction of maximum resistance to bending opposes the direction of wind loading, thereby providing a light-weight yet relatively stiff apparatus.

REFERENCES:
patent: 2642632 (1953-06-01), Savage
patent: 3388517 (1968-06-01), Wohl et al.
patent: 3411247 (1968-11-01), Fleming
patent: 3455080 (1969-07-01), Meadows
patent: 3899858 (1975-08-01), Zanker
patent: 4320609 (1982-03-01), Abell
patent: 4624091 (1986-11-01), Biro
patent: 4640078 (1987-02-01), Haffer

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