Stock material or miscellaneous articles – Structurally defined web or sheet – Including stitching and discrete fastener – coating or bond
Patent
1987-04-24
1989-07-18
Thomas, Alexander S.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including stitching and discrete fastener, coating or bond
428920, 428921, B32B 306
Patent
active
048492736
ABSTRACT:
A welding blanket comprising a layer of flexible protective material comprising unexpanded vermiculite and inorganic heat resistant fibrous material, which layer undergoes localized expansion in a direction normal to its major surfaces when contacted by spatter of molten metal during a welding process; and two relatively thin flexible cover sheets, one attached along each of the major surfaces of the layer of flexible material to maintain its structural integrity.
REFERENCES:
patent: 3162566 (1964-12-01), Katz
patent: 3916057 (1975-10-01), Hatch
patent: 4467577 (1984-08-01), Licht
Schwartz Thomas W.
Skinner Mark C.
Huebsch William L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Thomas Alexander S.
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