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US 6,679,000 B2Granted
Snap lock balance shoe and system for a pivotable window
AssigneeAmesbury Group, Inc.
InventorsStuart J. Uken, Gary R. Newman, Lawrence J. VerSteeg
Life of this patent
Estimating the term…
Abstract
This application relates to apparatus for a snap lock balance shoe and system to be incorporated in pivotable double hung windows. In one embodiment, the snap lock balance shoe includes a frame, a locking member at least partially disposed within the frame, a cam in communication with the locking member and a pair of resilient tabs that partially extend through openings within an inverted window balance.
Claims20
A balance shoe for an inverted window balance system, the balance shoe comprising:
- a frame adapted to be slidably received within a window jamb;
- a locking member at least partially disposed within the frame, the locking member adapted to lock the balance shoe in the window jamb upon rotation of a sash;
- a cam in communication with the locking member and adapted to cooperate with a pivot bar attached to the sash to force the locking member to engage the window jamb upon rotation of the sash;
- and
- a connecting device comprising one or more resilient tabs adapted to mate directly with one or more of a plurality of openings formed in a U-shaped channel of an inverted window balance.
2 more elements
An inverted window balance system comprising:
- a U-shaped channel comprising a plurality of openings;
- a spring connected to a system of pulleys located within the U-shaped channel;
- a cord with a first cord end and a second cord end, the first cord end connected and threaded through the system of pulleys, the second cord end connected to a jamb mounting attachment;
- and
- a balance shoe, wherein the balance shoe comprises:
- a frame adapted to be slidably received within a window jamb;
- a locking member at least partially disposed within the frame, the locking member adapted to lock the balance shoe in the window jamb upon rotation of a sash;
- a cam in communication with the locking member and adapted to cooperate with a pivot bar attached to the sash to force the locking member to engage the window jamb upon rotation of the sash;
- and
- a connecting device comprising one or more resilient tabs adapted to mate directly with one or more of the plurality of openings formed in the U-shaped channel.
7 more elements
A method for installing an inverted window balance system within a window jamb in a window frame comprising the steps of:
- providing an inverted window balance system comprising:
- a U-shaped channel with a plurality of opening;
- a spring connected to a system of pulleys located within the U-shaped channel;
- a cord with a first cord end and a second cord end, the first cord end connected and threaded through the system of pulleys, the second cord end connected to a jamb mounting attachment;
- and
- a balance shoe comprising:
- a frame comprising a frame bottom surface, a frame front surface and two frame edge surfaces, the frame adapted to be slidably received within a window jamb;
- a locking member at least partially disposed within the frame, the locking member adapted to lock the balance shoe in the window jamb upon rotation of a sash;
- a cam in communication with the locking member and cooperating with a pivot bar attached to the sash to force the locking member to engage the window jamb upon rotation of the sash;
- and
- a connecting device comprising one or more resilient tabs adapted to mate directly with one or more of the plurality of openings formed in the U-shaped channel;
- inserting the inverted window balance system within a jamb track of the window jamb such that an axis extending along a longitudinal direction of the U-shaped channel is perpendicular to a back wall of the jamb track and an axis that is perpendicular to the two frame edge surfaces is parallel to the back wall while the frame front surface faces a side wall of the jamb track;
- rotating the inverted window balance system within the jamb track 90 degrees about the axis extending along the longitudinal direction of the U-shaped channel such that the frame front surface faces down;
- and
- rotating the inverted window balance system 90 degrees about the axis that is perpendicular to the two frame edge surfaces such that the frame bottom surface faces in a downward direction.
12 more elements
Dependencies are inferred from the claim text.