Counterbalanced window operator

Details Counterbalanced window operator Counterbalanced window operator

E - Fixed Constructions

05

F

E05F 11/08 (2006.01) E05F 11/24 (2006.01) E05F 11/34 (2006.01)

Patent

CA 2125723

11 A B S T R A C T A counterbalanced window operator includes a housing in which a rotatable lead screw (5) rotated by a crank handle (6) or an electric power unit (11), cooperates with a non-rotatable nut member (4) to axially displace the nut member and move pivoting arms (2,3) to open and close the window.

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