E - Fixed Constructions – 05 – D
Patent
E - Fixed Constructions
05
D
E05D 13/00 (2006.01)
Patent
CA 2619289
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.
Borden Ladner Gervais Llp
Caldwell Manufacturing Company
LandOfFree
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