초록 ▼

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 a

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.

대표청구항 ▼

A window frame apparatus comprising window pane means with said window pane means having a plurality of edges, a plurality of elongated members with said elongated members comprising wall portions forming a hollow portion, with said elongate members further comprising window pane mounting means for

A window frame apparatus comprising window pane means with said window pane means having a plurality of edges, a plurality of elongated members with said elongated members comprising wall portions forming a hollow portion, with said elongate members further comprising window pane mounting means for mounting said edges of said window pane means on said elongated members, a plurality of flat solid metal stiffener means with said stiffener means inserted respectively in said elongated members, and corner connection means for connecting the adjacent elongated members to form a frame for said window pane means.