Composite closure member
AssigneeAirfix Industries Limited
InventorBrian Leo Chudleigh Sutch
Life of this patent
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Abstract
A composite product such as a lid for a container comprises a sheet material blank and a peripheral moulding formed thereon, wherein a marginal portion of the blank is displaced to project from the general plane of the central panel of the blank and the peripheral moulding includes an inner marginal portion bonded to the said marginal portion of the blank and is shaped so that on longitudinal shrinkage of the moulding the central panel of the blank will bow in a direction conforming with the direction of displacement of the marginal portion of the blank.
Claims8
A composite closure member comprising a generally planar blank of sheet material having a marginal part contiguous to the planar part of the blank angularly displaced out of the plane of the blank, a continuous rim of substantially rigid injection moulded thermo-plastic material surrounding the displaced marginal part of the blank, and said planar part of the blank being bowed upon shrinkage by the bonded displaced marginal part of the blank.
Dependencies are inferred from the claim text.