Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1976-03-05
1977-10-18
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
23288FC, 156 89, 252477R, 264 56, 428188, 428906, B32B 330, B32B 322
Patent
active
040547027
ABSTRACT:
Monoliths made by joining ribbed sheet together have a tendency to collapse when the ribs of adjacent layers do not coincide. When the monolith is made by winding embossed sheet around a mandrel there will always be places where ribs do not coincide and which tend to collapse. This deficiency is minimized by using sheet with ribs having un-equal separation. Such sheet is obtained by embossing with a roll designed for this purpose, and the monoliths of this invention have unique features of channel dimensions.
REFERENCES:
patent: 3755204 (1973-08-01), Sergeys
patent: 3904551 (1975-09-01), Lundsager et al.
patent: 3926851 (1975-12-01), Sergeys
patent: 3963504 (1976-06-01), Lundsager
Glocker Edwin M.
Lundsager Christian Bent
Collins Mark T.
Savage Arthur P.
Thibodeau P.
Van Balen William J.
W. R. Grace & Co.
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