Automatic darkening filter assembly for a welding protector and a welding protector
Assignee3M Innovative Properties Company
InventorsJohan M. P. Hansson, Kjell A. Hummel, Thomas B. Stenvall, Linus P. Bastman
Life of this patent
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Abstract
An automatic darkening filter assembly for a welding protector and a welding protector that includes the automatic darkening filter assembly. The automatic darkening filter assembly has a housing that forms an opening in which a switchable light filter is arranged. The switchable light filter is retained by a first and a second resilient gasket that are arranged on opposite sides of the switchable light filter and which each extend circumferentially adjacent a periphery of the switchable light filter. The invention helps maximizing the robustness of the welding protector and facilitates assembly.
Claims13
An automatic darkening filter assembly for a welding protector, comprising a housing that forms an opening in which a switchable light filter is arranged, wherein the switchable light filter is retained by a first and a second resilient gasket that are arranged on opposite sides of the switchable light filter and which each extend circumferentially adjacent a periphery of the switchable light filter, wherein the first resilient gasket includes a rim that at least partially surrounds the switchable light filter, and wherein the rim cooperates with the second resilient gasket to provide an edge seal for the switchable light filter.
Dependencies are inferred from the claim text.