Johnson and Johnson Vision Care, Inc.

Gregory L Berckmiller

Scott Frederick Ansell

Vincent Henri Barre

Timothy Burkill

Mark McConnell

Michael William Litwin

Robert B Phillips

Gerald Robert Krebsbach

Timothy P Freeman

Richard F Barbas

Richard J Fox

Thomas R Daniels

Phillip King Parnell

Timothy Patrick Freeman

Richard John Fox

Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.

Casting cup assembly for forming an ophthalmic device

This invention provides a method and a mold for improving the release of a molded ophthalmic device from a mold. The method comprises the steps of: providing a first mold half and second mold half each having opposing top surfaces at least one of which has been hollowed out to define a cavity for forming said ophthalmic device and at least said first mold half further defining a boundary for a release element, said boundary is part of said cavity, said release element comprising a ramped surface, said cavity having a corresponding ramped surface, and said release element having its widest part near the top surface of said at least said first mold half that defines said release element therein. The mold of this invention has a hollowed-out portion as part of the cavity to provide a release element to the molded ophthalmic device.

Method and mold for making ophthalmic devices

Growing community of inventors

St. Johns, FL, United States of America

Gregory L Berckmiller