DEVICE FOR LIFTING AND MOVING WINDOW FRAMES
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United States of America Patent
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app pub date -
Oct 26, 2010
filing date -
Sep 28, 2007
priority date (Note) -
Abandoned
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Abstract
Provided as a hoist system for installing a plurality of panels of a panel set onto a building structure at a jobsite. The hoist system comprises a beam assembly configured to hoist the panels and sequentially offload the panels from the beam assembly onto the building structure. The beam assembly comprises an elongate hoist beam, a lifting lug, a plurality of trolleys mounted on one of the opposing ends of hoist beam, and a drive mechanism operative to reposition the lifting lug along the hoist beam such that the hoist beams maintain a substantially horizontal or level orientation.
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