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AssigneeWayne-Dalton Corp.
InventorsWillis J. Mullet, Albert W. Mitchell, Thomas B. Bennett, III, William S. Wilson
Estimating the term…
A sectional door (20) having a plurality of panels (21, 22, 23, 24) including, a body portion (25) of the panels spacing and joining longitudinal edges (40, 50), one of the edges (40) between adjacent panels on a first panel having a substantially concave curvilinear surface (45) in vertical cross-section, the other of the edges (50) between adjacent panels on a second panel having a substantially planar surface (52) in vertical cross-section, longitudinally-spaced hinges (65) interconnecting the first and second panels for pivotal movement. The hinges include a first hinge element (66) having a first leaf (67) overlying and attached to one of the adjacent panels, a generally cylindrical first knuckle (72) at one edge of the first leaf, a through slot (73) in the first leaf proximate the first knuckle, a second hinge element (80) having a second leaf (85) overlying and attached to an adjacent panel, and a generally cylindrical second knuckle (81) at one edge of the second hinge element extending into the through slot and rotatable about the first knuckle. A panel (22) for sectional door (20) having a generally rectangular foam core (140, 240, 340), an inner surface (145, 245, 345) extending the longitudinal length of said foam core, and a recess (150, 250, 350) in the inner surface and the foam core extending the longitudinal length of the foam core. A bracket assembly (110) for the bottom (35) of the lower panel (24) of the door including, an L-shaped plate (111) overlying a portion of the inner surface (36) of the lower panel, a generally cylindrical sleeve (120) affixed on the plate for receiving a shaft (121) mounting one of the rollers (122), fasteners (115) for attaching the L-shaped plate to the lower panel positioned to underlie a portion of the cylindrical sleeve and the shaft, and cut-outs (125) in the cylindrical sleeve positioned substantially above the fasteners whereby the fasteners may be removed only when the shaft is not positioned in the cylindrical sleeve. Conveyor apparatus (400, 500) for the continuous production of foam-cored door panel material (22') having a first conveyor (410, 501) having a first panel-engaging surface (426, 503) lying in a plane for engaging the planar skin on one side of the panel material, a drive assembly (415, 510) for driving the first conveyor at a selected speed, a second conveyor (402, 502) having second and third panel-engaging surfaces (451, 464; 535, 540) for engaging spaced skin surfaces (146, 146) and an offset skin surface (150), respectively, on the other side of the panel material, and a drive assembly (435, 520) for driving at least one of the second and third panel-engaging surfaces of the second conveyor at substantially the selected speed of the first conveyor.
Conveyor apparatus for the continuos production of foam-cored door panel material having a planar skin on one side and a skin on the other side thereof having a pair of spaced co-planar skin surface joined by an offset skin surface comprising, first conveyor means having a first panel-engaging surface lying in a panel for engaging the planar skin on one side of the panel material, means for driving said first conveyor means at a selected speed, second conveyor means having second and third panel-engaging surfaces for engaging the spaced skin surfaces and the offset skin surface, respectively, on the other side of the panel material, and means for driving at least one of said second and third panel-engaging surfaces of said second selected means at substantially the same speed as said selected speed of said first conveyor means.
Conveyor apparatus for the continuous production of foam-cored door panel material having a first side and a second side comprising, a first conveyor engaging the first side of the panel material, a second conveyor engaging the second side of the panel material, a plurality of roller means having substantially parallel shafts in said second conveyor, center drum means of said plurality of roller means having a first diameter for engaging a portion of the second side of the panel material, side drum means of said plurality of roller means having a second diameter for engaging other portions of the second side of the panel material, means for driving said first conveyor, and means for driving one of said center drum means and said side drum means of said second conveyor.
Conveyor apparatus for the continuous production of foam-cored door panel material having a planar skin on one side and a skin on the other side thereof having a first skin surface and a second offset skin surface comprising, a first conveyor having a first panel-engaging surface lying in a plane for engaging the planar skin on one side of the panel material, a first conveyor drive assembly for independently moving said first panel-engaging surface at a selected velocity, a second conveyor having second and third panel-engaging surfaces for engaging the first skin surface and the second offset skin surface on the other side of the panel material, and a second conveyor drive assembly for independently moving at least one of said second and third panel-engaging surfaces of said second conveyor at a selected velocity.
Conveyor apparatus for the continuous production of foam-cored door panel material have a first side and a second side comprising, a first conveyor engaging the first side of the panel material, a second conveyor engaging the second side of the panel material, a plurality of rollers having substantially parallel shafts in said second conveyor, a center drum of each of said plurality of rollers having a first diameter for engaging a portion of the second side of the panel material, at least one side drum of each of said plurality of rollers having a second diameter for engaging other portions of the second side of the panel material, a first drive assembly for moving said first conveyor, and a second drive assembly for independently moving one of said center drum and said side drum of said second conveyor.
Dependencies are inferred from the claim text.