Method and apparatus for treating an ophthalmic lens mold
Номер патента: CA2146486A1
Опубликовано: 09-10-1995
Автор(ы): Edmund C. Rastrelli, John C. Heaton, Jonathan P. Adams, Kenneth J. Weber, Thomas J. Wagner
Принадлежит: Edmund C. Rastrelli, John C. Heaton, JOHNSON & JOHNSON VISION CARE, INC., Johnson & Johnson Vision Products Inc., Johnson & Johnson Vision Products, Inc., Jonathan P. Adams, Kenneth J. Weber, Thomas J. Wagner
Опубликовано: 09-10-1995
Автор(ы): Edmund C. Rastrelli, John C. Heaton, Jonathan P. Adams, Kenneth J. Weber, Thomas J. Wagner
Принадлежит: Edmund C. Rastrelli, John C. Heaton, JOHNSON & JOHNSON VISION CARE, INC., Johnson & Johnson Vision Products Inc., Johnson & Johnson Vision Products, Inc., Jonathan P. Adams, Kenneth J. Weber, Thomas J. Wagner
Реферат: An apparatus and method for causing the polymerized excess monomer to separate from a molded lens by increasing the surface energy of the flange area of one mold piece, causing the polymerized excess monomer to stick thereto. Specifically when manufactured under inert atmosphere conditions, a particular manifold is needed to supply an oxygen bearing gas, air, to the area to be treated while preventing the oxygen from contaminating the lens manufacturing area of the molds or diluting the nitrogen atmosphere of other lens process areas. It has been found that generation of the ionized oxygen by means of a corona treatment electrode sufficiently increases the adherence of the polymer to the mold piece so treated. In the preferred embodiment, the flange around the convex, male piece of the lens mold is corona treated so that when the mold pieces are separated after lens polymerization, the flashing of excess polymerized material surrounding the lens cavity adheres to that male, convex piece flange while the lens is removed with the female, concave piece.
Shaving processing method and shaving processing apparatus for gear
Номер патента: US20210187643A1. Автор: Ryoichi Ueno,Yoshihiro Teramoto. Владелец: Mazda Motor Corp. Дата публикации: 2021-06-24.