Device for opening and closing the panel of a window, door, vent

Details Device for opening and closing the panel of a window, door, vent Device for opening and closing the panel of a window, door, vent

1992-09-18

1993-12-21

Kannan, Philip C.

Movable or removable closures

With operator for movably mounted closure

Reversibly flexible and rigid rod

E05F 1100

Patent

active

052711820

ABSTRACT:
A device (16b) for tilting windows, doors, ventilation hatches, or similar closures open, with a motorized transmission-activating mechanism (12b) and a transmission (14b) comprising two back-to-back chains that curve in opposite directions.

REFERENCES:
patent: 2045261 (1936-06-01), Clute
patent: 4481735 (1984-11-01), Jentoft et al.
patent: 4726247 (1988-02-01), Hormann
patent: 4819495 (1989-04-01), Hormann
patent: 4945678 (1990-08-01), Berner et al.

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