Invention Grant
- Patent Title: Automatic darkening filter assembly for a welding protector and a welding protector
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Application No.: US17249978Application Date: 2021-03-19
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Publication No.: US11376162B2Publication Date: 2022-07-05
- Inventor: Johan M. P. Hansson , Kjell A. Hummel , Thomas B. Stenvall , Linus P. Bastman
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN St. Paul
- Agent Gregg Rosenblatt
- Priority: EP16198326 20161111
- Main IPC: G02B7/00
- IPC: G02B7/00 ; A61F9/06 ; G02F1/1335

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.
Public/Granted literature
- US20210205136A1 AUTOMATIC DARKENING FILTER ASSEMBLY FOR A WELDING PROTECTOR AND A WELDING PROTECTOR Public/Granted day:2021-07-08
Information query
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B7/00 | 光学元件的安装、调整装置或不漏光连接 |