Back to results
US 3,949,526 AGranted
Door construction
AssigneeH. A. Brown Limited
InventorsRussell J. W. Sherlock, James Gordon Maynard
Life of this patent
Estimating the term…
Abstract
An insulated panel such as a door panel assembly comprising a frame which consists of a plurality of hollow plastic moulded elements having a panel mounted in the frame. The elements of the frame are secured with respect to one another by a body of foamed plastic material which fills the hollow chambers which are formed in the plastic moulding elements and extends continuously between the abutting ends of the plastic moulding elements.
Claims10
An insulated panel assembly comprising
- a. a frame consisting of a plurality of hollow plastic molding elements having a longitudinally extending chamber formed therein which is open at either end, said elements being arranged in an end to end abutting relationship with the chambers thereof opening into one another at said abutting ends, and passage means extending longitudinally of one side of each of said plastic molding elements and opening outwardly from said chamber,
- b. panel means mounted in said frame and having marginal edge portions extending through said passage means of said molding elements into said chambers, and
- c. a body of foamed plastic material filling said chambers and extending continuously between abutting ends of said molding elements to secure said elements with respect to one another in the required frame configuration with said panel means mounted therein,
- d. said plastic molding elements each having a pair of side edges disposed one on either side of said longitudinal passage, and flange means projecting inwardly of said chamber from each of said side edges and engaging opposite faces of said marginal portion of said panel, said flange means being urged towards said panel by said body of foamed plastic material to lock said panel therein.
1 more element
Dependencies are inferred from the claim text.