Metallic hermetic sealing cover for a container

Details Metallic hermetic sealing cover for a container Metallic hermetic sealing cover for a container

1978-07-31

1981-01-06

Dixon, Jr., William R.

Stock material or miscellaneous articles

All metal or with adjacent metals

Intermediate article

428 75, 428601, 428336, 428926, B21C 100, B32B 300, B32B 104

Patent

active

042437296

ABSTRACT:
A method of fabricating a metallic hermetic sealing cover for a container comprises plating a strip of base metal with a material comprising preponderantly a precious metal such as gold to a thickness of 40% to 90% of the ultimate required minimum surface thickness, which may be 25 to 100 microinches, preferably about 40 microinches, dividing the strip into cover elements of predetermined size, and barrel-plating such cover elements with the plating material to provide a resultant minimum thickness of surface plating substantially equal to the required minimum thickness.

REFERENCES:
patent: 3397127 (1968-08-01), Camp
patent: 3505182 (1970-04-01), Pokras
patent: 3791938 (1974-02-01), Healy et al.
patent: 3791941 (1974-02-01), Bick et al.
patent: 3915832 (1975-10-01), Rackus et al.
patent: 3926746 (1975-12-01), Hargis
patent: 4001093 (1977-01-01), Koontz et al.
patent: 4072768 (1978-02-01), Fraser et al.

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