Reinforced sectional door panels
AssigneeWayne-Dalton Corp.
InventorsWillis Mullet, Thomas Bennett, Albert Mitchell, James Mast, Allen McDowell
Life of this patent
Estimating the term…
Abstract
A sectional doorpanel (P, P′; P″) having a facer (50; 94; 114), a backer (52; 96; 116), a core (54; 98; 117) interposed between the facer and the backer, the backer including at least one protruding element (60A, 60B) extending outwardly therefrom and longitudinally thereof, and a reinforcing member (66, 76) positioned longitudinally along the protruding element and a reinforcing strip (90; 112, 113) positioned adjacent one of an upper edge (112) and a lower edge (113) of the panels and extending longitudinally thereof.
Claims28
A sectional door panel comprising, a facer, a backer, a core interposed between said facer and said backer, said backer including at least one protruding element extending outwardly therefrom and longitudinally thereof, a reinforcing member positioned longitudinally along said protruding element, and a reinforcing strip positioned adjacent one of an upper edge and a lower edge of the panels and extending longitudinally thereof.
A sectional door panel comprising, a facer, a backer, a core interposed between said facer and said backer, said backer including at least one protruding element extending outwardly therefrom and longitudinally thereof, and a reinforcing member positioned longitudinally along said at least one protruding element, said reinforcing member having a majority of the material thereof oriented in a direction substantially perpendicular to the plane of the panel.
A sectional door panel comprising, a facer, a backer, a core interposed between said facer and said backer, at least one reinforcing strip positioned adjacent one of an upper edge and a lower edge of the panel and extending longitudinally thereof, said reinforcing strip having a majority of the material thereof oriented in a direction substantially perpendicular to the plane of the panel.
Dependencies are inferred from the claim text.