Compact window operator

Details Compact window operator Compact window operator

E - Fixed Constructions

05

F

E05F 11/00 (2006.01) E05F 11/24 (2006.01) E05F 11/34 (2006.01)

Patent

CA 2125722

13 A B S T R A C T A counterbalanced window operator includes a housing (11) in which operating arms (7,8) pivotally connected in the housing and slidingly and pivotally connected to a sash of the window are counterbalanced by a torsion spring (13). In one embodiment, connections between the torsion spring and the operating arms are adjustable in order to vary the counterbalancing force applied to the operating arms.

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