US Patent 11369520 Auto-darkening welding helmet
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Edits on 16 Oct, 2023
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Patent Inventor Names
Ziqian Wu0
Edits on 19 Jul, 2023
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Patent Citations Received
Edits on 26 Sep, 2022
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Patent Jurisdiction
Patent Number
113695200
Date of Patent
June 28, 2022
0Patent Application Number
166157810
Date Filed
August 12, 2019
0Patent Primary Examiner
CPC Code
Edits on 29 Jun, 2022
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US Patent 11369520 Auto-darkening welding helmet
Article
An auto-darkening welding helmet comprises a helmet casing; an auto-darkening filter installed in the helmet casing; and a lighting device installed in the helmet casing, wherein the auto-darkening filter includes a liquid crystal panel which is switchable between a non-opaque state and an opaque state, wherein the lighting device comprises a cable connectable to the auto-darkening filter such that when the liquid crystal panel is in the non-opaque state the lighting device automatically emits light towards a front of the liquid crystal panel and when the liquid crystal panel is in the opaque state the lighting device does not automatically emit light.
Infobox
Is a
Patent jurisdiction
Patent number
11369520
Date of patent
June 28, 2022
Patent application number
16615781
Date Filed
August 12, 2019
Patent primary examiner
CPC Code
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