Opening and closing type louver device

Details Opening and closing type louver device Opening and closing type louver device

1983-02-24

1985-07-09

Kannan, Philip C.

Movable or removable closures

Closures interconnected for concurrent movement

Louver-type closures

49 90, 49 92, 49275, E05F 1700, E06B 7086

Patent

active

045273553

ABSTRACT:
An opening and closing type louver device comprising a louver in which a number of blades are arranged in a row in a required spaced relation on rotating shafts within a frame. Each blade is opened and closed by a driving mechanism while maintaining their parallel relation.

REFERENCES:
patent: 2822587 (1958-02-01), Hallock
patent: 3044387 (1962-07-01), Hinden
patent: 3718081 (1973-02-01), Root
patent: 3885347 (1975-05-01), Adachi et al.
patent: 4099346 (1978-07-01), Isono

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