FOLDING SUPPORT RAIL AND TONGUE FOR CONVERTING A HAND TRUCK, CART OR DOLLY INTO TO A PANEL CART
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United States of America Patent
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Issued Date -
Jul 16, 2020
app pub date -
Nov 13, 2018
filing date -
Nov 10, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and apparatus improve the panel support rail, tongue, handle and hinge system for hand-trucks, carts and dollies that convert to panel-carts. A panel-cart, typically seen in large building supply stores, is used to carry plywood panels, windows, door and other similar object as well as long lumber, all of which cannot be carry by a standard hand-truck. The conversion efficiency of a hand-truck to a panel-cart is improved and the user complexity reduced, partially by attaching parts with hinges that were previously separate components, further by using the handle as a primary or secondary support rail when placed in the extended position via hinges or fixed receivers.
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