BERTRAM R GOODWIN
Engineering in Feeding Hills, MA
License number
Massachusetts 5853
Issued Date
Oct 27, 1950
Expiration Date
Jun 30, 1988
Type
Chemical Engineer
Address
Address
Feeding Hills, MA 01030
Professional information
Gasket For Casting Lenses
US Patent:
4227673, Oct 14, 1980
Filed:
Aug 10, 1979
Appl. No.:
6/065661
Inventors:
Bertram R. Goodwin - Feeding Hills MA
Bradford Canterbury - Sturbridge MA
Bradford Canterbury - Sturbridge MA
Assignee:
American Optical Corporation - Southbridge MA
International Classification:
B29C 100, B29D 1100
US Classification:
249117
Abstract:
A gasket for a lens casting cell designed to accommodate for casting material shrinkage during curing in the cell.
Lens Block With Preform
US Patent:
3996701, Dec 14, 1976
Filed:
Jun 30, 1975
Appl. No.:
5/591670
Inventors:
Peter R. Ramirez - Southbridge MA
Bertram R. Goodwin - Feeding Hills MA
Bertram R. Goodwin - Feeding Hills MA
Assignee:
American Optical Corporation - Southbridge MA
International Classification:
B24B 1300
US Classification:
51216LP
Abstract:
A lens block having locating bosses for fixturing to lens-surfacing equipment and an interconnected oppositely disposed lens holding portion all cast of a eutectic blocking medium. The blocking medium is cast over and through an apertured preform of rigid, relatively high melting temperature material functioning as a heat sink and material filler.