Motorized window blind with manual overrride

Details Motorized window blind with manual overrride Motorized window blind with manual overrride

1988-06-20

1990-06-19

Purol, David M.

Flexible or portable closure, partition, or panel

Plural and/or with rigid closure

Diverse types

160177, 1601781, 49 82, 49 92, 49139, 174 521, E06B 930

Patent

active

049344382

ABSTRACT:
A motorized window blind operator is slidably received in a mounting bracket in the plane of the blind in a window frame. A motor in the operator housing normally opens and closes the blind but can be overridden by a manually operated gear train utilizing a screw driver extending through a hole in the inner window pane into engagement with a slotted hub on a gear in the housing. An upstanding flange on the housing overlaps with the adjacent blind slat to prevent light passing therethrough when the blind is closed. The housing has a V-shaped vertical end which receives the ends of the blind slats which have a similar shape for preventing light passage therebetween.

REFERENCES:
patent: 2675227 (1954-04-01), Baird et al.
patent: 2675228 (1954-04-01), Baird et al.
patent: 2758834 (1956-08-01), Sanford et al.
patent: 3068971 (1962-12-01), Ringler
patent: 3096078 (1963-07-01), Steingass et al.
patent: 3375322 (1968-03-01), Serio et al.
patent: 3389737 (1968-06-01), Arnold et al.
patent: 3722572 (1973-03-01), Hall
patent: 4096903 (1978-06-01), Ringle, III
patent: 4274469 (1981-07-01), Kuyper et al.
patent: 4643238 (1987-02-01), Tachikawa et al.
patent: 4719955 (1988-01-01), Tachikawa et al.
patent: 4850416 (1989-07-01), Evers

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