Reinforced folding door and hinge assembly
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United States of America Patent
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Jan 30, 2018
Issued Date -
N/A
app pub date -
Jun 2, 2016
filing date -
Sep 30, 2015
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Abstract
An accordion type folding door system having a plurality of elongated panels hinged together along their longitudinal side edges into a pleated or zig zag arrangement, the folding panels being interconnected by a hinge assembly. The hinge assembly is disposed between and interconnects a pair of adjacent panels, each of the pair of interconnected adjacent panels including a side edge having longitudinal groove and an extension flange, wherein the hinge assembly includes a hinge pin and a plurality of hinge knuckles disposed vertically end-to-end in alternating arrangement on the hinge pin, the hinge knuckle having a tubular central opening for accepting the hinge pin, an outwardly extending tongue for connecting to a corresponding longitudinal groove in an adjacent panel in a tongue and groove connection, and an outwardly flared wedge that extends beyond the extension flanges of the panels, whereby the wedge cooperates with the extension flanges to limit angular folding extension to a maximum desired angle.
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