Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Sash balances
Reexamination Certificate
2006-01-31
2006-01-31
Mah, Chuck Y. (Department: 3676)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Sash balances
C016S197000, C049S181000
Reexamination Certificate
active
06990710
ABSTRACT:
A counterbalance system for a tilt-in window having novel components. The counterbalance system includes brake shoes, curl springs and spring anchor mounts. The brake shoe assembly of the counterbalance system has a unique, low cost locking mechanism that uses a looped wire. The brake shoe assembly may also be configured with external rib projections that reduce the friction of the brake shoe assemblies as they move through the tracks of the window. The spring anchor mount is formed with a recess in its body that enables the tilt latch of a window sash to pass the spring anchor mount within the track of the window frame. As a result, the spring anchor mounts can be placed within the window frame at points previously not available.
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Kannengieszer Keith
Kunz John R.
Lamorte & Associates
Mah Chuck Y.
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