Container

Details Container Container

1981-02-13

1983-09-20

Shoap, Allan N.

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

220 66, 220 70, 220DIG22, B65D 804, B65D 2514

Patent

active

044050585

ABSTRACT:
This disclosure relates to a product, the process for making same from precoated metal and the tool used for making the product. The product is a concurrently drawn and ironed sanitary food can wherein the side wall thickness of the container is relatively uniform and approximately 0.001" thinner than the thickness of the starting material. The process is a concurrent multiple drawing and ironing operation wherein the diameter and the wall thickness are reduced in each of a plurality of operations. Finally, the tools used for each drawing and ironing operation have particular configurations designed to permit this concurrent forming of both the diameter and the side wall thickness.

REFERENCES:
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Second International Tinplate Conference, London, 10/10/80: "Drawability Through Shrink-Forming of Double Reduced Tinplate", (DR8) by D. Roult et al., pp. 233-240, (Paper No. 22); Published by The International Tin Research Institute (I.T.R.I. Publication No. 600).
Modern Metals, "Next Aluminum Target: Cans for Wine, Water, Juices", by Fred L. Church, Ed., p. 28.
"Cup-Drawing From A Flat Blank", Part I and Part II, by S. Y. Chung et al., Applied Mechanics, Proceedings 1951, vol. 165 (W.E.P. No. 68) published by The Institution of Mechanical Engineers, London.
1981 Annual Book of ASTM Standards, Part 3, "Steel-Plates, Sheet, Strip, Wire; Metallic Coated Products, Fences".
Modern Metals, "Fruits, vegetables, other foods targeted for new aluminum can", by Fred L. Church, pp. 13-16, of Modern Metals, Jan. 1983.

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