Counterbalance system for a window havng side loading sashes

Details Counterbalance system for a window havng side loading sashes Counterbalance system for a window havng side loading sashes

E - Fixed Constructions

05

F

E05F 1/16 (2006.01) E05F 7/06 (2006.01)

Patent

CA 2707562

A counterbalance system for a side load window assembly having a window sash and side frame jambs. A spring carriage is provided. The spring carriage has a first section that fits into a gap space between the window frame and the window sash. The spring carriage also includes a second section that passes under the window sash. A locking mechanism is disposed in the second section that selectively engages the side jambs and locks the spring carriage in place. At least one coil spring is provided. Each coil spring has a wound body that is held within the spring carriage. Each coil spring also has a first end that extends out of the spring carriage is anchored to one of the side frame jambs. The coil springs bias the spring housing upwardly. Since the window sash rests upon the housing, the window sash is counterbalanced.

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