SYSTEM OF SHAPES FOR ASSEMBLY OF WINDOW AND DOOR FRAMES, PARTITIONS, SHOWCASES AND STAINED-GLASS PANELS Russian patent published in 1998 - IPC

FIELD: civil engineering. SUBSTANCE: system of shapes consists of sections, each includes exterior and interior different in size hollow shapes and thermal insert. Shapes have L-shaped and pair folds and members connecting shapes with one another and with other parts made in the form of one- or two-sided wing with flanging and/or steps. Interior shape width is larger than that of exterior shape and may be stretched in width with chamfered free corner. System additionally has sealing gaskets contacting fill and provided with heat-insulating projection and interior hollow in location. System additionally has sealing gaskets secured between section thermal inserts made with tooth-like location and interior hollow in working part. System additionally has sill in two versions connected with section by means of transition shape of various types of additional sealing gaskets. EFFECT: reduced air convection inside article. 7 cl, 9 dwg