The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2017
Filed:
Sep. 21, 2015
Applicant:
Optrel Ag, Wattwil, CH;
Inventors:
Ramon Hofer-Kraner, Herisau, CH;
Leo Keller, Rueti, CH;
Assignee:
OPTREL AG, Wattwil, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 9/06 (2006.01);
U.S. Cl.
CPC ...
A61F 9/061 (2013.01); A61F 9/062 (2013.01); A61F 9/064 (2013.01); A61F 9/065 (2013.01); A61F 9/067 (2013.01); G02F 2201/44 (2013.01);
Abstract
A welder protection device comprising a shell and a transparent front cover for protection of a wearer of the welder protection device, and an auto-darkening optical filter. The welder protection device further comprises a retracting mechanism arranged to move the optical filter optical filter from an active position to a retracted position and vice versa. In the active position, the optical filter lies inside the welder protection device and in the wearer's field of view, and in the retracted position the optical filter lies inside the welder protection device and outside the wearer's field of view.