Locking Shoe Formed in Non-rotatable Halves for Curl Spring Window Balance System
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United States of America Patent
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N/A
Issued Date -
Jul 31, 2008
app pub date -
Jan 29, 2007
filing date -
Jan 29, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A curl spring shoe cassette includes a mounting bracket mounted to interlock with connectors on top of a shoe body so that an uncurled length of the curl spring can be attached to the mount to hold the spring, the mount, and the shoe body together during shipment. Once the cassette is properly positioned within a shoe channel, it can be fastened to a back channel wall with screws so as to automatically disengage the mount from the shoe body, which can then support a counter balance sash.
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