Cuspated sheet forming

Details Cuspated sheet forming Cuspated sheet forming

1974-04-16

1976-05-04

Lesmes, George F.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

428131, 428156, 428224, 428174, 428179, 428256, 428304, 264 92, B32B 330, B32B 100

Patent

active

039550192

ABSTRACT:
A laminate comprising a core consisting of a cuspated sheet consisting of a series of hollow projections projecting upwardly and downwardly from the median plane of said sheet and wherein the outer tips of the projections on the ends furthest from the median plane are closed and the ends of the projections in the median plane are open and wherein the projections form a series of pointed cusps said core laminated to a porous sheet wherein the points of the cusps on at least one face have been melted and at least partially allowed to impregnate the porous sheet.

REFERENCES:
patent: 3011602 (1961-12-01), Ensrud et al.
patent: 3086899 (1963-04-01), Smith et al.
patent: 3341395 (1967-09-01), Weber

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