Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1977-07-20
1979-03-13
Wityshyn, Michael G.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
93 51R, 93 59MT, 156494, 156581, 156583, 425395, 425408, 425DIG110, B30B 1534, B31B 4300
Patent
active
041435877
ABSTRACT:
Apparatus for inelastically deforming an initially flat blank of a corrugated fiberboard, comprising two die blocks movable relative to each other and having complementarily convex and concave pressing surfaces and blank retaining means adapted to clamp opposite marginal portions of a blank of a corrugated fiberboard being warped between the die blocks with the marginal portions urged sidewise inboardly of the die blocks, the blank retaining means being operative to restrain the blank from being moved in a direction parallel with the marginal portions but to allow the marginal portion of the blank to move the marginal portions of the blank sidewise inboardly of the die blocks in a direction perpendicular to the marginal portions so that not only production of creases in curved portions of the blank but production of fissures as would be caused if the blank is excessively stretched between the opposite marginal portions of the blank are precluded.
REFERENCES:
patent: 2255116 (1941-09-01), Helmstaedter
patent: 2270187 (1942-01-01), Dulmage
patent: 2797179 (1957-06-01), Reynolds et al.
patent: 3231449 (1966-01-01), Tomson
patent: 3347733 (1967-10-01), Elver
patent: 3800682 (1974-04-01), Gournelle
patent: 3915775 (1975-10-01), Davis
Nissan Motor Company Limited
Wityshyn Michael G.
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