Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Coacting shaping surfaces
Reexamination Certificate
2009-04-28
2011-11-01
Crispino, Richard (Department: 1747)
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Coacting shaping surfaces
C425S403100, C425S411000, C425S422000, C425S443000, C264S334000
Reexamination Certificate
active
08047834
ABSTRACT:
A heated, segmented pressware die set for making pressware containers from a paperboard blank includes a plurality of guide keys mounted between at least one of an inner member of a punch or die and an outer ring which reciprocates independently. Each guide key extends in an outward direction from the central axis of the die set. The guide keys are positioned, configured and dimensioned to engage the outer ring in order to limit rotation of the outer ring with respect to the inner member of the punch or die. In a preferred construction, the guide keys have radially extending planar surfaces which cooperate with guide channels having like surfaces such that clearances necessary to accommodate thermal expansion are reduced, greatly increasing durability of the tool.
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W.A. Gloger, Pigments (Inorganic), Kirk-Othmer, Encyclopedia of Chemical Technology, Third Edition, pp. 798, 799, 815 and 831-836, vol. 17, John Wiley & Sons, New York, USA.
Johns Albert D.
Littlejohn Mark B.
Reif Gary J.
Sofronie Mircea T.
Stumpf Luke G.
Crispino Richard
Dixie Consumer Products LLC
Letson William W.
Nguyen Thukhanh
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