Eugene G. Walters - Orwigsburg PA Heinz E. Ruck - Media PA
Assignee:
The Fiber-Metal Products Company - Concordville PA
International Classification:
A61F 906
US Classification:
2 8
Abstract:
A corona barrier insert for a welding mask having a shield section and a main frame defining a viewing port in the shield section and a lens assembly including an outer pane made of glass and an inner pane of tinted glass to block out harmful rays. The corona barrier insert is made of a semi-rigid opaque plastic material and is of a configuration to engage in the frame defining the viewing port in a manner to block or prevent a corona or halo effect about the periphery of the lens stack.
Eugene G. Walters - Orwigsburg PA Heinz E. Ruck - Morton PA
Assignee:
The Fibre-Metal Products Company - Concordville PA
International Classification:
G02C 520
US Classification:
351118
Abstract:
An eyeglass temple including a pair of telescopic temple members, the inner telescopic member having a longitudinal opening, and the outer telescopic member having a projection entering the opening for relative movement therealong upon telescoping of the members, the opening and projection being configured for retaining engagement with each other at selected positions of telescopic movement to maintain a desired adjustment.