A cutter for edging plastic lenses to desired finished shapes and sizes including a main supporting wheel having an effective cutting edge formed of a multiplicity of circumferentially spaced replaceable cutting blades for clean chip clearance and ready accessibilty to individual removal sharpening and/or replacement as needed.
A circular array of accordian pleated filter material is core and edge sealed, placed in a supporting shell, peripherally sealed thereinplace and capped. Core sealing of the array of filter material is accomplished with a fill of hot melt adhesive and edge sealing with application of a covering strip of the same or a similar hot melt adhesive. An overlay of heat shrinkable tape provides final tight sealing and rigidification of the structure.
Robert J. Dusza - Southbridge MA Joseph W. Kantorski - Southbridge MA
Assignee:
American Optical Corporation - Southbridge MA
International Classification:
B29C 1704 B29D 1100 B29C 102
US Classification:
425388
Abstract:
A mold for forming lens blanks to meniscus shapes under applied heat and a force created by partial vacuum. A cupped lens shaping surface in the mold is cushioned and covered with a synthetic fabric for effecting exceptional accuracy in lens blank conformance to shaping surface curvature, optimum surface smoothness and quick release upon completion of a forming cycle.
Robert Dusza 1961 graduate of Middletown High School in Middletown, CT is on Classmates.com. See pictures, plan your class reunion and get caught up with Robert and other high ...