Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Changing mold size or shape during molding or with shrinkage...
Patent
1991-09-12
1993-12-21
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Changing mold size or shape during molding or with shrinkage...
264 26, 264313, 249 82, 249160, 425808, B29D 1100
Patent
active
052718751
ABSTRACT:
A mold assembly includes first and second mold sections having respective first and second mold cavity defining surfaces, the first mold cavity defining surface terminating in an encircling peripheral rim and the second mold cavity defining surface terminating in a deformable peripheral annulus disposed at a diameter corresponding to the rim, and cooperating tapers depending from each of the first and second molds for relatively centering the molds.
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Appleton William J.
Hahn Dennis
Moucha William E.
Ruscio Dominic V.
Shannon John H.
Bausch & Lomb Incorporated
Larson Craig E.
Thomas John E.
Thurlow Jeffery
Vargot Mathieu
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