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.
Type:
Grant
Filed:
September 29, 1993
Date of Patent:
November 14, 1995
Assignee:
Bausch & Lomb Incorporated
Inventors:
William J. Appleton, Dennis Hahn, William E. Moucha, Dominic V. Ruscio, John H. Shannon, Steven D. Silbermann, Edwin W. Weaver, Jr.