Shutter construction

Details Shutter construction Shutter construction

1982-04-26

1984-03-13

Kannan, Philip C.

Movable or removable closures

Closures interconnected for concurrent movement

Louver-type closures

49 83, 49403, E05F 1700, E06B 708

Patent

active

044359209

ABSTRACT:
A ribbed metal foil slat has a slat support bracket at each slat end, each bracket being driven by a corresponding four-bar linkage. The two four-bar linkages are driven concurrently in the same direction.

REFERENCES:
patent: 395902 (1889-01-01), Heidt
patent: 2610371 (1952-09-01), Hite
patent: 3130458 (1961-10-01), Zacharias
patent: 3137043 (1964-06-01), Moeller
patent: 3159864 (1964-12-01), Ferrera
patent: 3460289 (1969-08-01), Toth
patent: 3928937 (1975-12-01), Dovman
patent: 4195444 (1980-04-01), Cote

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