Movable or removable closures – With means mounting closure for reciprocation – With counterbalance
Reexamination Certificate
2011-07-19
2011-07-19
Redman, Jerry (Department: 3634)
Movable or removable closures
With means mounting closure for reciprocation
With counterbalance
C049S445000, C016S197000, C016S401000
Reexamination Certificate
active
07980028
ABSTRACT:
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, therein supporting the window sash. 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 a housing and 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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LaMork & Associates, P.C.
Redman Jerry
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