Invention Grant
- Patent Title: Curved eye protection shield for welding protection
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Application No.: US16098155Application Date: 2017-05-01
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Publication No.: US11129748B2Publication Date: 2021-09-28
- Inventor: Kristina M. Magnusson , Kenneth Jarefors , Laurent Froissard , Britton G. Billingsley
- 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 H. Rosenblatt
- Priority: EP16168229 20160504
- International Application: PCT/US2017/030344 WO 20170501
- International Announcement: WO2017/192421 WO 20171109
- Main IPC: A61F9/06
- IPC: A61F9/06

Abstract:
A curved eye protection shield for welding protection. The eye protection shield has an electrically switchable darkening filter and a protective cover. The darkening filter has eye facing major inner and outer surfaces, and the protective cover has major inner and outer surfaces. The protective cover is provided for arrangement on the inner surface of the darkening filter. The inner and outer surface of the darkening filter are equidistant, whereas the inner and outer surface of the protective cover are non-equidistant. The invention is advantageous in that it provides an eye protection shield having a minimized refractive power.
Public/Granted literature
- US20190142640A1 A Curved Eye Protection Shield For Welding Protection Public/Granted day:2019-05-16
Information query
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