Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1992-09-29
1993-12-14
Kisliuk, Bruce M.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51323, B24B 100
Patent
active
052691055
ABSTRACT:
An improved method for generating a toric surface on a molding tool for forming contact lens molds comprises: providing a tool which comprises an elongated body and a molding portion at one end of the tool, wherein the molding portion comprises a surface which is substantially spherical; applying a force to the elongated body so as to distort the spherical surface of the molding portion; machining a substantially spherical curve in the distorted surface while maintaining the applied force; and releasing the applied force, wherein the spherically cut surface assumes a toric shape upon release of the applied force.
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Fleenor Richard J.
Opdyke Kenneth L.
Bausch & Lomb Incorporated
Bounkong Bo
Kisliuk Bruce M.
Larson Craig E.
Thomas John E.
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