Window frames having swingable blind-slats

Details Window frames having swingable blind-slats Window frames having swingable blind-slats

1979-04-10

1981-05-26

Kannan, Philip C.

Movable or removable closures

Closures interconnected for concurrent movement

Louver-type closures

49 90, 49388, 49403, 98121A, E06B 7086

Patent

active

042689953

ABSTRACT:
A window frame, especially for ventilation by setting at various angles a plurality of slats mounted on said frame is disclosed, the improvement consisting in that the control lever which acts upon the rod which gangs the slats for setting them at an angle together has the end pointing towards the interior of the frame in the form of a scalloped sector, the points of which engage, in turn, a notch formed on a brace which is removably fastened to the window frame upright. The mechanism is reliable and versatile since it permits that the slats may be set at various angles in a stable manner. Means are also provided for preventing slat rattle by properly shaping the individual frames of the slat carriers. Thermoplastics materials are widely used in the construction of the frame and accessories.

REFERENCES:
patent: 2830335 (1958-04-01), Miller
patent: 2890503 (1959-06-01), Paine
patent: 3188074 (1965-06-01), Revitz et al.
patent: 3189339 (1965-06-01), Siciliano
patent: 3296740 (1967-01-01), Sconzo
patent: 3706165 (1972-12-01), Baldrich
patent: 3750336 (1973-08-01), Johnson
patent: 3783768 (1974-01-01), Caming et al.

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