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US 4,048,273 AGranted
Method of making a structural element
AssigneeJeremy Bruce Holt
InventorAlan Pryce-Jones
Life of this patent
Estimating the term…
Abstract
In the production of a structural element such as a door or a panel forming part of the surround of a swimming pool, a rigid framework is placed on an upwardly presented surface of a mould. The mould is then closed and a foamed plastics material is injected into the mould cavity part of the periphery of which is defined by the framework which becomes an integral part of the moulded product.
Claims3
A method of making a structural element which includes:
- a. providing a mould element,
- b. providing a plurality of frame members including spaced parallel limbs the inner faces of which are provided with keying formations,
- c. assembling the frame members to form a framework in engagement with the mould element so that the framework cooperates with the mould element to define the periphery of a mould cavity, and
- d. injecting foamed plastics material into said mould cavity so as to form a structural element which comprises foamed plastics material surrounded by the framework and mechanically interlocked with the keying formations on the inner faces of the frame members.
1 more element
Dependencies are inferred from the claim text.