Composite closure member

Details Composite closure member Composite closure member

1973-12-27

1976-05-11

Dier, Philip

Stock material or miscellaneous articles

Perimeter or corner structure of sheet

156 85, 156242, 229 25R, 229 43, 215246, 264230, 264279, B23B 302, B29C 2700, B65D 564

Patent

active

039565505

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.

REFERENCES:
patent: 2885105 (1959-05-01), Heyl et al.
patent: 3154617 (1964-10-01), Schenk et al.
patent: 3402874 (1968-09-01), Sternau
patent: 3408902 (1968-11-01), De Voe
patent: 3417539 (1968-12-01), Hirohama
patent: 3493458 (1970-02-01), Santangello

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