Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1993-06-24
1996-05-21
Raimund, Christopher W.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
4283105, 428159, 428170, 428171, 181288, 181294, B32B 702
Patent
active
055188060
ABSTRACT:
The invention describes a foamed material panel, in particular a shaped part composed of one or several foamed material panels. These panels consist of a soft and, if appropriate, elastic foamed material comprising cellular webs and/or cellular walls that are permanently deformed at least in some areas. A central area of the foamed material panel is plastically deformed to a higher volumetric weight than at least one intermediate area of the formed material panel.
REFERENCES:
patent: 4292214 (1981-09-01), Blount
patent: 4863791 (1989-09-01), Steward et al.
Eder Bernhard
Priestner Gunther
C. A. Greiner & Sohne Gesellschaft m.b.H.
Raimund Christopher W.
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