Stock material or miscellaneous articles – All metal or with adjacent metals – Honeycomb – or with grain orientation or elongated elements...
Patent
1976-10-26
1982-08-10
Lewis, Michael L.
Stock material or miscellaneous articles
All metal or with adjacent metals
Honeycomb, or with grain orientation or elongated elements...
428604, B32B 1501, B32B 1518
Patent
active
043438660
ABSTRACT:
A method of deep embossing of sheet material, generally metal, is disclosed. A small scale relief pattern is first embossed across the entire sheet and thereafter a deep embossment of spaced-apart protuberances is imparted to the sheet. Both patterns in combination produce a sheet useful for reflective thermal insulation without the risk of significantly puncturing the sheet.
REFERENCES:
patent: 1226477 (1917-05-01), Dickelman
patent: 1517633 (1924-12-01), Junkers
patent: 1704326 (1929-03-01), Junkers
patent: 1789829 (1931-02-01), Goin
patent: 1987798 (1935-01-01), Ruppricht
patent: 3190412 (1965-06-01), Rutter et al.
patent: 3217845 (1965-11-01), Reynolds et al.
patent: 3938963 (1976-02-01), Hale
Niedzinski Edmund J.
Oser Nathan
Kelly Joseph J.
Krone Robert M.
Lewis Michael L.
Manville Service Corporation
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