Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1980-05-15
1982-03-16
Thibodeau, Paul J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
156209, 156210, 162113, 162117, 162205, 428156, 428166, 428172, 428178, 428184, 428212, 428332, B32B 328, B32B 2900
Patent
active
043201628
ABSTRACT:
In the manufacture of a multi-ply fibrous sheet structure, each of a pair of plies of fibrous web material is provided with a pattern of relatively deep, primary, spot embossments each adherent to the opposite ply and surrounded by a pattern of relatively shallow, secondary, non-adherent spot embossments.
REFERENCES:
patent: 2854336 (1958-09-01), Gutnecht
patent: 3708366 (1973-01-01), Donnelly
patent: 3867225 (1975-02-01), Nystrand
patent: 3868205 (1975-02-01), Thomas
American Can Company
Auber Robert P.
Hargis, III Harry W.
Thibodeau Paul J.
Ziehmer George P.
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